United Kingdom
UK Business Opportunities of Moving to a Low-carbon Economy
Mar 2017
Publication
The following report accompanies the Committee on Climate Change’s 2017 report on energy prices and bills. It was written by Ricardo Energy and Environment.
The report provides an analysis of the opportunities to UK businesses to supply global markets with low carbon materials and goods and services. The report considers: the position of the current UK low carbon economy the size of the market opportunity for UK businesses in 2030 and 2050 the barriers to UK business capturing a larger share of the global market the opportunity to increase the UK’s share of future global markets
Link to Document
The report provides an analysis of the opportunities to UK businesses to supply global markets with low carbon materials and goods and services. The report considers: the position of the current UK low carbon economy the size of the market opportunity for UK businesses in 2030 and 2050 the barriers to UK business capturing a larger share of the global market the opportunity to increase the UK’s share of future global markets
Link to Document
Propulsion of a Hydrogen-fuelled LH2 Tanker Ship
Mar 2022
Publication
This study aims to present a philosophical and quantitative perspective of a propulsion system for a large-scale hydrogen-fuelled liquid-hydrogen (LH2) tanker ship. Established methods are used to evaluate the design and performance of an LH2-carrier propulsion system for JAMILA a ship designed with four cylindrical LH2 tanks bearing a total capacity of ~280000 m3 along with cargo and using the boil-off as propulsion and power fuel. Additionally the ship propulsion system is evaluated based on the ship resistance requirements and a hydrogen-fuelled combined-cycle gas turbine is modelled to achieve the dual objectives of high efficiency and zero-carbon footprint. The required inputs primarily involve the off-design and degraded performance of the gas-turbine topping cycle and the proposed power plant operates with a total output power of 50 M.W. The results reveal that the output power allows ship operation at a great speed even with a degraded engine and adverse ambient conditions.
Reducing UK Emissions Progress Report to Parliament
Jun 2020
Publication
This is the Committee’s 2020 report to Parliament assessing progress in reducing UK emissions over the past year. This year the report includes new advice to the UK Government on securing a green and resilient recovery following the COVID-19 pandemic. The Committee’s new analysis expands on its May 2020 advice to the UK Prime Minister in which it set out the principles for building a resilient recovery. In its new report the Committee has assessed a wide set of measures and gathered the latest evidence on the role of climate policies in the economic recovery. Its report highlights five clear investment priorities in the months ahead:
- Low-carbon retrofits and buildings that are fit for the future
- Tree planting peatland restoration and green infrastructure
- Energy networks must be strengthened
- Infrastructure to make it easy for people to walk cycle and work remotely
- Moving towards a circular economy.
- Reskilling and retraining programmes
- Leading a move towards positive behaviours
- Targeted science and innovation funding
Reducing UK Emissions – 2019 Progress Report to Parliament
Jul 2019
Publication
This is the Committee’s annual report to Parliament assessing progress in reducing UK emissions over the past year. It finds that UK action to curb greenhouse gas emissions is lagging behind what is needed to meet legally-binding emissions targets. Since June 2018 Government has delivered only 1 of 25 critical policies needed to get emissions reductions back on track.
Integration of Hydrogen into Multi-Energy Systems Optimisation
Apr 2020
Publication
Hydrogen presents an attractive option to decarbonise the present energy system. Hydrogen can extend the usage of the existing gas infrastructure with low-cost energy storability and flexibility. Excess electricity generated by renewables can be converted into hydrogen. In this paper a novel multi-energy systems optimisation model was proposed to maximise investment and operating synergy in the electricity heating and transport sectors considering the integration of a hydrogen system to minimise the overall costs. The model considers two hydrogen production processes: (i) gas-to-gas (G2G) with carbon capture and storage (CCS) and (ii) power-to-gas (P2G). The proposed model was applied in a future Great Britain (GB) system. Through a comparison with the system without hydrogen the results showed that the G2G process could reduce £3.9 bn/year and that the P2G process could bring £2.1 bn/year in cost-savings under a 30 Mt carbon target. The results also demonstrate the system implications of the two hydrogen production processes on the investment and operation of other energy sectors. The G2G process can reduce the total power generation capacity from 71 GW to 53 GW and the P2G process can promote the integration of wind power from 83 GW to 130 GW under a 30 Mt carbon target. The results also demonstrate the changes in the heating strategies driven by the different hydrogen production processes.
HyDeploy Report: Exemption
Oct 2018
Publication
Exemption is requested from the obligation set out in Regulation 8(1) of the Gas Safety (Management) Regulations 1996 (GSMR) to convey only natural gas that is compliant with the Interchangeability requirements of Part I of Schedule 3 of the GSMR within the G3 element of the Keele University gas distribution network (KU-GDN). The KU-GDN is owned and operated by Keele University. The proposed conveyance of non-compliant gas (hereafter called the “HyDeploy Field Trial”) will last for one year of injection and is part of a Network Innovation Competition Project “HyDeploy”. The project aims to demonstrate that natural gas containing hydrogen at a level above that normally permitted by Schedule 3 of the GSMR can be safely and efficiently conveyed and inform decisions on the feasibility and strategy for wider deployment of natural gas containing hydrogen in Great Britain’s (GB’s) gas transmission and gas distribution systems.<br/>Click the supplements tab for the other documents from this report.
Numerical Analysis of VPSA Technology Retrofitted to Steam Reforming Hydrogen Plants to Capture CO2 and Produce Blue H2
Feb 2022
Publication
The increasing demand for energy and commodities has led to escalating greenhouse gas emissions the chief of which is represented by carbon dioxide (CO2). Blue hydrogen (H2) a lowcarbon hydrogen produced from natural gas with carbon capture technologies applied has been suggested as a possible alternative to fossil fuels in processes with hard-to-abate emission sources including refining chemical petrochemical and transport sectors. Due to the recent international directives aimed to combat climate change even existing hydrogen plants should be retrofitted with carbon capture units. To optimize the process economics of such retrofit it has been proposed to remove CO2 from the pressure swing adsorption (PSA) tail gas to exploit the relatively high CO2 concentration. This study aimed to design and numerically investigate a vacuum pressure swing adsorption (VPSA) process capable of capturing CO2 from the PSA tail gas of an industrial steam methane reforming (SMR)-based hydrogen plant using NaX zeolite adsorbent. The effect of operating conditions such as purge-to-feed ratio and desorption pressure were evaluated in relation to CO2 purity CO2 recovery bed productivity and specific energy consumption. We found that conventional cycle configurations namely a 2-bed 4-step Skarstrom cycle and a 2-bed 6-step modified Skarstrom cycle with pressure equalization were able to concentrate CO2 to a purity greater than 95% with a CO2 recovery of around 77% and 90% respectively. Therefore the latter configuration could serve as an efficient process to decarbonize existing hydrogen plants and produce blue H2.
HyDeploy Report: Material Effects of Introducing Hydrogen into the UK Gas Supply
Jun 2018
Publication
Introduction of hydrogen into the UK gas main has been reviewed in terms of how materials within the Keele G3 gas distribution network (G3 GDN) on the Keele University network may be affected by contact with natural gas (NG):hydrogen blends up to a limit of 20 % mol/mol hydrogen.<br/>This work has formed part of the supporting evidence for a 1 year hydrogen blending trial on the Keele G3 GDN coordinated by the HyDeploy consortium (formed of representatives of Cadent Northern Gas Networks ITM Power Progressive Energy HSL and Keele University).<br/>A wide range of materials were identified and assessed via a combination of literature review and practical test programmes. No significant changes to material properties in terms of accelerated material degradation or predicted efficiency of gas confinement were identified which would cause concern for the year-long trial at Keele.<br/>It can be concluded that materials on the Keele G3 GDN should be acceptable to provide a safe operating network the HyDeploy demonstrator project up to a level of 20 % mol/mol hydrogen.<br/>Check the supplements tab for the other documents in this report
The Role of CCS in Meeting Climate Policy Targets
Oct 2017
Publication
Carbon capture and storage (CCS) refers to a set of technologies that may offer the potential for large-scale removal of CO2 emissions from a range of processes – potentially including the generation of electricity and heat industrial processes and the production of hydrogen and synthetic fuels. CCS has both proponents and opponents. Like other emerging low carbon technologies CCS is not without risks or uncertainties and there are various challenges that would need to be overcome if it were to be widely deployed. Policy makers’ decisions as to whether to pursue CCS should be based on a judgement as to whether the risks and uncertainties associated with attempting to deploy CCS outweigh the risks of not having it available as part of a portfolio of mitigation options in future years.
The full report can be found on the Global CSS Institute website at this link
The full report can be found on the Global CSS Institute website at this link
Carbon Capture, Usage and Storage: An Update on Business Models for Carbon Capture, Usage and Storage
Dec 2020
Publication
An update on the proposed commercial frameworks for transport and storage power and industrial carbon capture business models.
The Fuel Cell Industry Review 2020
Jan 2020
Publication
The Fuel Cell Industry Review 2020 offers data analysis and commentary on key events in the industry in 2020. Now in its seventh year the Review has been compiled by a team led by E4tech - a specialist energy strategy consultancy with deep expertise in the hydrogen and fuel cell sector (see www.e4tech.com).
Despite the title of this publication we’ve said before that the fuel cell ‘industry’ is not a single industry at all. As those inside it know it is divided by different materials stages of maturity applications and regions – all contributors to the fact it has taken time to get going. But it does seem to be getting traction. Part of that is down to decades of hard work and investment in R&D technology improvement and demonstrations. Thankfully part of it is also down to changes in external conditions. Improving air quality is increasingly non-negotiable. Reducing greenhouse gas emissions likewise. And all while maintaining economic development and opportunity.
The growth spurt of the battery industry allied with some of the drivers above has catalysed thinking in where and how fuel cells can fit. Countries and regions which did not support batteries early on are scrambling to catch up and wish not to risk a repeat of their errors with fuel cells. So support is being targeted at industrial development and competitiveness as well as solving societal problems. Which in turn is helping industry to decide on and take investment steps: Weichai’s 20000 unit per annum PEM factory in China; Daimler and Volvo setting up their fuel cell truck JV; CHEM Energy building a factory for remote systems in S Africa."
Despite the title of this publication we’ve said before that the fuel cell ‘industry’ is not a single industry at all. As those inside it know it is divided by different materials stages of maturity applications and regions – all contributors to the fact it has taken time to get going. But it does seem to be getting traction. Part of that is down to decades of hard work and investment in R&D technology improvement and demonstrations. Thankfully part of it is also down to changes in external conditions. Improving air quality is increasingly non-negotiable. Reducing greenhouse gas emissions likewise. And all while maintaining economic development and opportunity.
The growth spurt of the battery industry allied with some of the drivers above has catalysed thinking in where and how fuel cells can fit. Countries and regions which did not support batteries early on are scrambling to catch up and wish not to risk a repeat of their errors with fuel cells. So support is being targeted at industrial development and competitiveness as well as solving societal problems. Which in turn is helping industry to decide on and take investment steps: Weichai’s 20000 unit per annum PEM factory in China; Daimler and Volvo setting up their fuel cell truck JV; CHEM Energy building a factory for remote systems in S Africa."
Net Zero in the Heating Sector: Technological Options and Environmental Sustainability from Now to 2050
Jan 2021
Publication
Heating and hot water within buildings account for almost a quarter of global energy consumption. Approximately 90% of this heat is derived directly from the combustion of fossil fuels primarily natural gas leading to the unabated emission of carbon dioxide. This paper assesses the environmental sustainability of a range of heating technologies and scenarios on a life cycle basis. The major technologies considered are natural gas boilers air source heat pumps hydrogen boilers and direct electric heaters. The scenarios use the UK as an example due to its status as a major economy with a legally-binding net-zero carbon target for 2050; they consider plausible future electricity and natural gas mixes including the potential growth of domestic shale gas. The environmental impacts are estimated using ReCiPe 2016. Current gas boilers have a climate change impact of 220 g CO2 eq./kWh of heat which could fall to 64 g CO2 eq./kWh for boilers fuelled by hydrogen derived from natural gas with carbon capture. Heat from electric air source heat pumps or hydrogen from electrolysis can achieve net zero with a decarbonised electricity mix but electrolysis has the highest energy demand of all options which leads to the highest impacts across 17 of the 19 categories. Despite their high carbon emissions gas boilers remain the lowest impact option across 12 categories as they avoid the impacts related to electricity generation including metal depletion toxicities and eutrophication. By 2050 the best performing scenario sees the climate change impact of the heating mix fall by 95%; this is achieved by prioritising electric air source heat pumps without hydrofluorocarbon refrigerants alongside demand reduction. The results show that if infrastructure and financial challenges can be overcome there are several viable decarbonisation strategies for heating with heat pumps offering the most environmentally sustainable option of those considered here. However increased renewable electricity demand may worsen some environmental impacts compared to natural gas boilers.
Hydrogen and Decarbonisation of Gas- False Dawn or Silver Bullet?
Mar 2020
Publication
This Insight continues the OIES series considering the future of gas. The clear message from previous papers is that on the (increasingly certain) assumption that governments in major European gas markets remain committed to decarbonisation targets the existing natural gas industry is under threat. It is therefore important to develop a decarbonisation narrative leading to a low- or zero-carbon gas implementation plan.
Previous papers have considered potential pathways for gas to decarbonise specifically considering biogas and biomethane and power-to-gas (electrolysis) . This paper goes on to consider the potential for production transport and use of hydrogen in the decarbonising energy system. Previous papers predominately focused on Europe which has been leading the way in decarbonisation. Hydrogen is now being considered more widely in various countries around the world so this paper reflects that wider geographical coverage.
Since the term ‘hydrogen economy’ was first used in 1970 there have been a number of ‘false dawns’ with bold claims for the speed of transition to hydrogen. This Insight argues that this time for some applications at least there are grounds for optimism about a future role for decarbonised hydrogen but the lesson from history is that bold claims need to be examined carefully and treated with some caution. There are no easy or low-cost solutions to decarbonisation of the energy system and this is certainly the case for possible deployment of low-carbon hydrogen. A key challenge is to demonstrate the technical commercial economic and social acceptability of various possibilities at scale. Hydrogen will certainly play a role in decarbonisation of the energy system although the size of the role may be more limited than envisaged in some more optimistic projections.
Open document on OIES website
Previous papers have considered potential pathways for gas to decarbonise specifically considering biogas and biomethane and power-to-gas (electrolysis) . This paper goes on to consider the potential for production transport and use of hydrogen in the decarbonising energy system. Previous papers predominately focused on Europe which has been leading the way in decarbonisation. Hydrogen is now being considered more widely in various countries around the world so this paper reflects that wider geographical coverage.
Since the term ‘hydrogen economy’ was first used in 1970 there have been a number of ‘false dawns’ with bold claims for the speed of transition to hydrogen. This Insight argues that this time for some applications at least there are grounds for optimism about a future role for decarbonised hydrogen but the lesson from history is that bold claims need to be examined carefully and treated with some caution. There are no easy or low-cost solutions to decarbonisation of the energy system and this is certainly the case for possible deployment of low-carbon hydrogen. A key challenge is to demonstrate the technical commercial economic and social acceptability of various possibilities at scale. Hydrogen will certainly play a role in decarbonisation of the energy system although the size of the role may be more limited than envisaged in some more optimistic projections.
Open document on OIES website
Properties of the Hydrogen Oxidation Reaction on Pt/C catalysts at Optimised High Mass Transport Conditions and its Relevance to the Anode Reaction in PEFCs and Cathode Reactions in Electrolysers
Jul 2015
Publication
Using a high mass transport floating electrode technique with an ultra-low catalyst loading (0.84–3.5 μgPt cm−2) of commonly used Pt/C catalyst (HiSPEC 9100 Johnson Matthey) features in the hydrogen oxidation reaction (HOR) and hydrogen evolution reaction (HER) were resolved and defined which have rarely been previously observed. These features include fine structure in the hydrogen adsorption region between 0.18 < V vs. RHE < 0.36 V vs. RHE consisting of two peaks an asymptotic decrease at potentials greater than 0.36 V vs. RHE and a hysteresis above 0.1 V vs. RHE which corresponded to a decrease in the cathodic scan current by up to 50% of the anodic scan. These features are examined as a function of hydrogen and proton concentration anion type and concentration potential scan limit and temperature. We provide an analytical solution to the Heyrovsky–Volmer equation and use it to analyse our results. Using this model we are able to extract catalytic properties (without mass transport corrections; a possible source of error) by simultaneously fitting the model to HOR curves in a variety of conditions including temperature hydrogen partial pressure and anion/H+ concentration. Using our model we are able to rationalise the pH and hydrogen concentration dependence of the hydrogen reaction. This model may be useful in application to fuel cell and electrolyser simulation studies.
Hydrogen - Decarbonising Heat
Feb 2020
Publication
<br/>Our industry is beginning its journey on the transition to providing the world with sufficient sustainable affordable and low emission energy.<br/><br/>Decarbonisation is now a key priority. Steps range from reducing emissions from traditional oil and gas operations to investing in renewable energy and supplementing natural gas supplies with greener gasses such as hydrogen.<br/><br/>This paper looks at the role hydrogen could play in decarbonisation.
Hydrogen Transport - Fuelling The Future
Dec 2020
Publication
Through the combustion of fossil fuels the transport sector is responsible for 20-30% of global CO2 emissions. We can support the net-zero one ambition by decarbonising transport modes using green hydrogen fuelled options – hydrogen generated from renewable energy sources such as offshore wind.<br/><br/>We have been working with clients across the hydrogen industry for several years specifically around the generation dispatch and use of hydrogen within energy systems. However interest is swiftly moving to wider hydrogen based solutions including within the fleet rail aviation and maritime sectors.<br/><br/>Our latest ‘Future of Energy’ series explores the opportunity for green fuelled hydrogen transport. We look at each industry in detail the barriers to uptake market conditions and look at how the transport industry could adapt and develop to embrace a net-zero future.
Business Energy and Industrial Strategy Committee Inquiry into Post-Pandemic Economic Growth
Sep 2020
Publication
The Hydrogen Taskforce welcomes the opportunity to submit evidence to the Business Energy and
Industrial Strategy Committee’s inquiry into post-pandemic economic growth.
It is the Taskforce’s view that:
You can download the whole document from the Hydrogen Taskforce website here
Industrial Strategy Committee’s inquiry into post-pandemic economic growth.
It is the Taskforce’s view that:
- Due to its various applications hydrogen is critical for the UK to reach net zero by 2050;
- The UK holds world-class advantages in hydrogen production distribution and application;
- Other economies are moving ahead in the development of this sector and the UK must respond;
- The post pandemic economic recovery planning should reflect the need to achieve deep decarbonisation and support wider objectives such as achieving net zero and levelling up the
- economy; and
- The hydrogen sector is well-placed to play a key role in the UK’s economic recovery with the right policies and financial structures in place.
- Development of a cross departmental UK Hydrogen Strategy within UK Government;
- Commit £1bn of capex funding over the next spending review period to hydrogen production storage and distribution projects;
- Develop a financial support scheme for the production of hydrogen in blending industry power and transport;
- Amend Gas Safety Management Regulations (GSMR) to enable hydrogen blending and take the next steps towards 100 per cent hydrogen heating through supporting public trials and
- mandating 100 per cent hydrogen-ready boilers by 2025; and
- Commit to the support of 100 Hydrogen Refuelling Stations (HRS) by 2025 to support the rollout of hydrogen transport.
You can download the whole document from the Hydrogen Taskforce website here
Exploring the Evidence on Potential Issues Associated with Trialling Hydrogen Heating in Communities
Dec 2020
Publication
Replacing natural gas with hydrogen in an everyday setting – piping hydrogen to homes and businesses through the existing gas network – is a new and untested proposition. At the same time piloting this proposition is an essential ingredient to a well-managed low carbon transition.<br/>The Department of Business Energy and Industrial Strategy (BEIS) has commissioned CAG Consultants to undertake a literature review and conduct a set of four focus groups to inform the development of work to assess issues associated with setting up a hypothetical community hydrogen trial. This report sets out the findings from the research and presents reflections on the implications of the findings for any future community hydrogen heating trials.<br/>The literature review was a short focused review aimed at identifying evidence relevant to members of the public being asked to take part in a hypothetical community trial. Based primarily on Quick Scoping Review principles the review involved the analysis of evidence from 26 items of literature. The four focus groups were held in-person in two city locations Manchester and Birmingham in November 2019. They involved consumers who either owned or rented houses (i.e. not flats) connected to the gas grid. Two of the focus groups involved owner-occupiers one was with private landlords and the other was with a mixture of tenants (private social and student).<br/>This report was produced in October 2019 and published in December 2020.
City Blood: A Visionary Infrastructure Solution for Household Energy Provision through Water Distribution Networks
May 2013
Publication
This paper aims to expand current thinking about the future of energy and water utility provision by presenting a radical idea: it proposes a combined delivery system for household energy and water utilities which is inspired by an analogy with the human body. It envisions a multi-functional infrastructure for cities of the future modelled on the human circulatory system. Red blood cells play a crucial role as energy carriers in biological energy distribution; they are suspended in the blood and distributed around the body to fuel the living cells. So why not use an analogous system e an urban circulatory system or “city blood” e to deliver energy and water simultaneously via one dedicated pipeline system? This paper focuses on analysing the scientific technological and economic feasibilities and hurdles which would need to be overcome in order to achieve this idea.<br/>We present a rationale for the requirement of an improved household utility delivery infrastructure and discuss the inspirational analogy; the technological components required to realise the vignette are also discussed. We identify the most significant advance requirement for the proposal to succeed: the utilisation of solid or liquid substrate materials delivered through water pipelines; their benefits and risks are discussed.
Navigating Algeria Towards a Sustainable Green Hydrogen Future to Empower North Africa and Europe's Clean Hydrogen Transition
Mar 2024
Publication
Algeria richly-endowed with renewable resources is well-positioned to become a vital green hydrogen provider to Europe. Aiming to aid policymakers stakeholders and energy sector participants this study embodies the first effort in literature to investigate the viability and cost-effectiveness of implementing green hydrogen production projects destined for exports to Europe via existing pipelines. A land suitability analysis utilizing multi-criteria decision making (MCDM) coupled with geographical information system (GIS) identified that over 43.55% of Algeria is highly-suitable for hydrogen production. Five optimal locations were investigated utilizing Hybrid Optimization of Multiple Electric Renewables (HOMER) with solar-hydrogen proving the most cost-effective option. Wind-based production offering higher output volumes reaching 968 kg/h requires turbine cost reductions of 17.50% (Ain Salah) to 54.50% (Djanet) to achieve a competitive levelized cost of hydrogen (LCOH) of $3.85/kg with PV systems. A techno-economic sensitivity analysis was conducted identifying Djanet as the most promising location for a 100 MW solar-hydrogen plant with a competitive LCOH ranging from $1.96/kg to $4.85/kg.
Decarbonising the UK’s Gas Network - Realising the Green Power-to-hydrogen Opportunity in the East Network
Aug 2020
Publication
Although the UK has done a great job of decarbonising electricity generation to get to net zero we need to tackle harder-to-decarbonise sectors like heat transport and industry. Decarbonised gas – biogases hydrogen and the deployment of carbon capture usage and storage (CCUS) – can make our manufacturing more sustainable minimise disruption to families and deliver negative emissions.
Developing the capability to produce hydrogen at scale is one of the key challenges in the race to meet the UK’s ambitious net zero targets. Using the East Neuk of Fife - with its abundant on- and offshore renewables resource and well-developed electricity and gas networks – as a test bed we investigated the use of surplus electricity generated by renewables to produce green hydrogen which could then be used to heat homes and businesses carbon-free.
Aims
The study focused on answering a number of important questions around bringing power-to-hydrogen to Fife including:
How much low-cost low-carbon electricity would be available to a power-to-hydrogen operator in Fife and how much hydrogen could be produced today and in 2040? How much hydrogen storage would be required to meet demand under three end-use cases: injection into the natural gas grid; use in a dedicated hydrogen grid for heating; and use as transport fuel for a small fleet of vehicles? What if any network upgrades could be avoided by implementing power-to-hydrogen? Which hydrogen end-use markets would be most attractive for a power-to-hydrogen operator? What are the regulatory legislative or market barriers to be overcome to realise large-scale deployment of power-to-hydrogen?
The study
Our expert researchers used a high-level model of the European electricity system and established wholesale prices generation volumes by generation type and constrained generation in Fife. Considering both the present day and a 2040 picture based on National Grid’s Two Degrees Future Energy Scenarios our team explored a number of configurations of power generation and hydrogen end-use to assess the value associated with producing hydrogen.
Alongside this modelling our team conducted a comprehensive review of power-to-hydrogen legislation and regulation and reports and academic papers to identify the current characteristics and direction of the sector observe where most progress had been made and identify lessons learned.
This report and any attachment is freely available on the ENA Smarter Networks Portal here. IGEM Members can download the report and any attachment directly by clicking on the pdf icon above.
Developing the capability to produce hydrogen at scale is one of the key challenges in the race to meet the UK’s ambitious net zero targets. Using the East Neuk of Fife - with its abundant on- and offshore renewables resource and well-developed electricity and gas networks – as a test bed we investigated the use of surplus electricity generated by renewables to produce green hydrogen which could then be used to heat homes and businesses carbon-free.
Aims
The study focused on answering a number of important questions around bringing power-to-hydrogen to Fife including:
How much low-cost low-carbon electricity would be available to a power-to-hydrogen operator in Fife and how much hydrogen could be produced today and in 2040? How much hydrogen storage would be required to meet demand under three end-use cases: injection into the natural gas grid; use in a dedicated hydrogen grid for heating; and use as transport fuel for a small fleet of vehicles? What if any network upgrades could be avoided by implementing power-to-hydrogen? Which hydrogen end-use markets would be most attractive for a power-to-hydrogen operator? What are the regulatory legislative or market barriers to be overcome to realise large-scale deployment of power-to-hydrogen?
The study
Our expert researchers used a high-level model of the European electricity system and established wholesale prices generation volumes by generation type and constrained generation in Fife. Considering both the present day and a 2040 picture based on National Grid’s Two Degrees Future Energy Scenarios our team explored a number of configurations of power generation and hydrogen end-use to assess the value associated with producing hydrogen.
Alongside this modelling our team conducted a comprehensive review of power-to-hydrogen legislation and regulation and reports and academic papers to identify the current characteristics and direction of the sector observe where most progress had been made and identify lessons learned.
This report and any attachment is freely available on the ENA Smarter Networks Portal here. IGEM Members can download the report and any attachment directly by clicking on the pdf icon above.
The Future of Gas Networks – Key Issues for Debate
Sep 2019
Publication
The Oxford Institute for Energy Studies held a Workshop on “The Future of Gas Networks” to examine decarbonisation plans and the impact of the potential growth in the use of renewable and decarbonised gases in Europe. Participants included representatives from nine European gas network companies (both transmission and distribution) technical experts in decarbonisation regulators government officials and academics. This document summarises the seven key issues for debate arising from the Workshop discussions:
- The major gas networks recognise the need to prepare for and facilitate decarbonisation.
- The route to decarbonisation can take many forms though hydrogen is likely to feature in most networks. In larger countries solutions are likely to be regional rather than national.
- There are a number of pilot projects and targets/aspirations for 2050 – there is less clarity on how the targets will be achieved or on who will lead.
- Regulation is a key issue. In most countries existing regulatory objectives may need changing in order to align with government decarbonisation aspirations and the achievement of targets.
- There is a lack of consensus on whether and how market models might need to adapt.
- Detailed stakeholder analysis – and in particular customer attitudes – will be required.
- There are a range of important technical issues including standardisation data quality and transparency verification and certification to be considered.
The Future of Gas Infrastructure Remuneration in Spain
Oct 2019
Publication
The European Union (EU) has adopted ambitious decarbonization targets for 2050.
Renewable electricity and electrification are the key drivers but are not sufficient on their own to meet the targets. A number of countries expect decarbonized gas (e.g. renewable hydrogen and biomethane) to be part of a future decarbonized energy system.
Within that context this paper examines proposals recently issued by Spain’s energy regulator (CNMC) to define the methodology for remunerating gas distribution and transmission networks and LNG regasification terminals. Their proposals would reduce significantly the remuneration of these activities. Bearing in mind the objective of decarbonization this paper analyzes key features of the proposals and concludes with recommendations. We suggest:
Link to document on OIES website
Renewable electricity and electrification are the key drivers but are not sufficient on their own to meet the targets. A number of countries expect decarbonized gas (e.g. renewable hydrogen and biomethane) to be part of a future decarbonized energy system.
Within that context this paper examines proposals recently issued by Spain’s energy regulator (CNMC) to define the methodology for remunerating gas distribution and transmission networks and LNG regasification terminals. Their proposals would reduce significantly the remuneration of these activities. Bearing in mind the objective of decarbonization this paper analyzes key features of the proposals and concludes with recommendations. We suggest:
- Adoption of a common methodology for remunerating new investment in gas and electricity infrastructure assets. The Regulatory Asset Base (RAB) approach is a suitable methodology especially for high-risk investment to integrate hydrogen.
- CNMC reconsideration of its proposals for existing assets. The aim should be to ensure that even if remuneration is reduced to some extent investors will still be compensated adequately and that the companies will continue to support the investments needed to digitalize processes deliver natural gas and eventually deliver renewable gas where it is economic to do so. This is an important signal for current and future investors whose investments will be regulated by the CNMC.
- Clarification of the methodology for remunerating renewable gas facilities. If renewable gas (especially hydrogen) requires access to regulated gas networks the CNMC methodology must provide suitable incentives to invest in network expansion and upgrading as required as well as to maintain natural gas operations. Even if no decision is made in the short-term regarding hydrogen it would be prudent to leave the door open by making the regulation compatible with future decisions involving hydrogen development.
- Consideration of potentially stranded assets. The CNMC and the Government should coordinate over the remuneration of infrastructure assets when national policy decisions may lead to the stranding of these assets.
- Decarbonization of the energy system as a whole. The CNMC and the Government should consider how best to promote the decarbonization of the energy system as a whole rather than its individual parts and what role is to be played by regulated networks and by unregulated initiatives in competitive markets especially for the development of hydrogen systems.
Link to document on OIES website
Liverpool-Manchester Hydrogen Cluster: A Low Cost, Deliverable Project
Aug 2017
Publication
Emissions from natural gas combustion and use are the largest source of greenhouse gas (GHG) emissions in the UK. The use of hydrogen in place of natural gas in principle offers a potential route to long term widespread decarbonisation of gas distribution networks as shown by the Leeds City Gate (‘H21’) study.1 The purpose of considering conversion to hydrogen is to deliver widespread carbon abatement across the UK at lower cost than alternative decarbonisation strategies.<br/>The Government is to finalise and publish the long-awaited ‘Clean Growth Plan’ along with an Industrial Strategy White Paper in Autumn 2017. Conversion from natural gas to hydrogen potentially on an incremental basis would likely represent a major opportunity for new industrial growth. This might be through the longer term stability or potential expansion of existing (newly decarbonised) energy intensive industry or through business opportunities and growth created from new technologies developed to facilitate the transition to hydrogen as the UK becomes a global leader and major exporter of equipment and skills. Job creation and the resulting gross value added (GVA) to the economy could therefore be significant in delivery of the goals of the Industrial Strategy Challenge Fund (ISCF).<br/>The core requirement is to supply low carbon hydrogen in bulk matching production to distribution network demand at an affordable cost. The H21 study concluded that to do so reliably hydrogen is best produced by reducing natural gas in steam methane reformers (SMRs) fitted with Carbon Capture and Storage (CCS). The study proposed that the considerable inter-seasonal and daily fluctuations in network demand can be managed by storing hydrogen in underground salt formations. It concluded that the SMRs with associated carbon dioxide (CO2) capture should be located near to where CO2 transport and storage infrastructure was likely to be created and noted that candidate locations for this are Teesside Humberside Grangemouth and the Liverpool-Manchester (L-M) area. Two of these Humberside and the L-M area are within the Cadent Gas Ltd (‘Cadent’) network and are also industrial ‘clusters’ with significant populations.<br/>The work reported here builds upon the approach proposed in the H21 project by focussing on defining ‘low carbon’ hydrogen supply and distribution systems in Humberside and the L-M area at a system scale sufficient to supply a large city.2 Both the Humber and L-M clusters are close to salt deposits which are suitable for both daily and inter-seasonal storage of hydrogen (for initial or expanded projects). Furthermore new large-scale gas Combined Cycle Gas Turbine (CCGT) plants widely assumed as likely anchor projects for CCS infrastructure have been consented in both cluster areas confirming that they are both strong candidates as locations for the first CCS clusters and hence as locations for a hydrogen supply system.
Magnesium Based Materials for Hydrogen Based Energy Storage: Past, Present and Future
Jan 2019
Publication
Volodymyr A. Yartys,
Mykhaylo V. Lototskyy,
Etsuo Akiba,
Rene Albert,
V. E. Antonov,
Jose-Ramón Ares,
Marcello Baricco,
Natacha Bourgeois,
Craig Buckley,
José Bellosta von Colbe,
Jean-Claude Crivello,
Fermin Cuevas,
Roman V. Denys,
Martin Dornheim,
Michael Felderhoff,
David M. Grant,
Bjørn Christian Hauback,
Terry D. Humphries,
Isaac Jacob,
Petra E. de Jongh,
Jean-Marc Joubert,
Mikhail A. Kuzovnikov,
Michel Latroche,
Mark Paskevicius,
Luca Pasquini,
L. Popilevsky,
Vladimir M. Skripnyuk,
Eugene I. Rabkin,
M. Veronica Sofianos,
Alastair D. Stuart,
Gavin Walker,
Hui Wang,
Colin Webb,
Min Zhu and
Torben R. Jensen
Magnesium hydride owns the largest share of publications on solid materials for hydrogen storage. The “Magnesium group” of international experts contributing to IEA Task 32 “Hydrogen Based Energy Storage” recently published two review papers presenting the activities of the group focused on magnesium hydride based materials and on Mg based compounds for hydrogen and energy storage. This review article not only overviews the latest activities on both fundamental aspects of Mg-based hydrides and their applications but also presents a historic overview on the topic and outlines projected future developments. Particular attention is paid to the theoretical and experimental studies of Mg-H system at extreme pressures kinetics and thermodynamics of the systems based on MgH2 nanostructuring new Mg-based compounds and novel composites and catalysis in the Mg based H storage systems. Finally thermal energy storage and upscaled H storage systems accommodating MgH2 are presented.
Accelerating to Net Zero with Hydrogen Blending Standards Development in the UK, Canada and the US - Part 2
Mar 2021
Publication
Hydrogen is expected to play a critical role in the move to a net-zero economy. However large-scale deployment is still in its infancy and there is still much to be done before we can blend hydrogen in large volumes into gas networks and ramp up the production that is required to meet demands of the energy transport and industry sectors. KTN Global Alliance will host two webinars to explore these challenges and opportunities in hydrogen blending on the 2nd and 3rd March 2021.
Exciting pilot projects are being conducted and explored in the UK Canada and US states such as California to determine the technical feasibility of blending hydrogen into existing natural gas systems. Whilst the deployment of hydrogen is in its early stages there is increasing interest around permitting significant percentage blends of hydrogen into gas networks which would enable the carbon intensity of gas supplies to be reduced creating a new demand for hydrogen and with the use of separation and purification technologies downstream support the transportation of pure hydrogen to markets.
Gaps in codes and standards need to be addressed to enable adoption and there may be opportunities for international collaboration and harmonisation to ensure that best practices are shared globally and to facilitate the growth of trade and export markets. There is an opportunity for the UK Canada and US three G7 countries to work together and show market making leadership in key enabling regulation for the new hydrogen economy.
Delivered by KTN Global Alliance on behalf of the British Consulate-General in Vancouver and the UK Science and Innovation Network in Canada and the US these two webinars will showcase hydrogen blending pilot projects in the UK Canada and California highlighting challenges and opportunities with regard to standards development for hydrogen blending and supporting further transatlantic collaboration in this area. The events also form part of the UK’s international engagement to build momentum towards a successful outcome at COP26 the UN climate summit that the UK will host in Glasgow in November 2021. The webinars will bring together experts from industry academia and policy from the UK Canada and California. Attendees will have an opportunity to ask questions and interact using Mentimeter.
Part 1 Highlights and Perspectives from the UK can be found here.
Exciting pilot projects are being conducted and explored in the UK Canada and US states such as California to determine the technical feasibility of blending hydrogen into existing natural gas systems. Whilst the deployment of hydrogen is in its early stages there is increasing interest around permitting significant percentage blends of hydrogen into gas networks which would enable the carbon intensity of gas supplies to be reduced creating a new demand for hydrogen and with the use of separation and purification technologies downstream support the transportation of pure hydrogen to markets.
Gaps in codes and standards need to be addressed to enable adoption and there may be opportunities for international collaboration and harmonisation to ensure that best practices are shared globally and to facilitate the growth of trade and export markets. There is an opportunity for the UK Canada and US three G7 countries to work together and show market making leadership in key enabling regulation for the new hydrogen economy.
Delivered by KTN Global Alliance on behalf of the British Consulate-General in Vancouver and the UK Science and Innovation Network in Canada and the US these two webinars will showcase hydrogen blending pilot projects in the UK Canada and California highlighting challenges and opportunities with regard to standards development for hydrogen blending and supporting further transatlantic collaboration in this area. The events also form part of the UK’s international engagement to build momentum towards a successful outcome at COP26 the UN climate summit that the UK will host in Glasgow in November 2021. The webinars will bring together experts from industry academia and policy from the UK Canada and California. Attendees will have an opportunity to ask questions and interact using Mentimeter.
Part 1 Highlights and Perspectives from the UK can be found here.
Role of batteries and fuel cells in achieving Net Zero: Session 2
Mar 2021
Publication
The House of Lords Science and Technology Committee will hear from leading researchers about anticipated developments in batteries and fuel cells over the next ten years that could contribute to meeting the net-zero target.
The Committee continues its inquiry into the Role of batteries and fuel cells in achieving Net Zero. It will ask a panel of experts about batteries hearing about the current state-of-the-art in technologies that are currently in deployment primarily lithium-ion batteries. It will also explore the potential of next generation technologies currently in development and the challenges in scaling them up to manufacture.
The Committee will then question a second panel about fuel cells hearing about the different types available and their applications. It will explore challenges that need to be overcome in the development of the technology and will consider the UK’s international standing in the sector.
Meeting details
At 10.00am: Oral evidence
Professor Serena Corr Chair in Functional Nanomaterials and Director of Research Department of Chemical and Biological Engineering at University of Sheffield
Professor Paul Shearing Professor in Chemical Engineering at University College London
Dr Jerry Barker Founder and Chief Technology Officer at Faradion Limited
Dr Melanie Loveridge Associate Professor Warwick Manufacturing Group at University of Warwick
At 11.00am: Oral evidence
Professor Andrea Russell Professor of Physical Electrochemistry at University of Southampton
Professor Anthony Kucernak Professor of Physical Chemistry Faculty of Natural Sciences at Imperial College London
Professor John Irvine Professor School of Chemistry at University of St Andrews
Possible questions
Parliament TV video of the meeting
This is part two of a three part enquiry.
Part one can be found here and part three can be found here.
The Committee continues its inquiry into the Role of batteries and fuel cells in achieving Net Zero. It will ask a panel of experts about batteries hearing about the current state-of-the-art in technologies that are currently in deployment primarily lithium-ion batteries. It will also explore the potential of next generation technologies currently in development and the challenges in scaling them up to manufacture.
The Committee will then question a second panel about fuel cells hearing about the different types available and their applications. It will explore challenges that need to be overcome in the development of the technology and will consider the UK’s international standing in the sector.
Meeting details
At 10.00am: Oral evidence
Professor Serena Corr Chair in Functional Nanomaterials and Director of Research Department of Chemical and Biological Engineering at University of Sheffield
Professor Paul Shearing Professor in Chemical Engineering at University College London
Dr Jerry Barker Founder and Chief Technology Officer at Faradion Limited
Dr Melanie Loveridge Associate Professor Warwick Manufacturing Group at University of Warwick
At 11.00am: Oral evidence
Professor Andrea Russell Professor of Physical Electrochemistry at University of Southampton
Professor Anthony Kucernak Professor of Physical Chemistry Faculty of Natural Sciences at Imperial College London
Professor John Irvine Professor School of Chemistry at University of St Andrews
Possible questions
- What contribution are battery and fuel cell technologies currently making towards decarbonization in the UK?
- What advances do we expect to see in battery and fuel cell technologies and over what timeframes?
- How quickly can UK battery and fuel cell manufacture be scaled up to meet electrification demands?
- What are the challenges facing technological innovation and deployment in heavy transport?
- Are there any sectors where battery and fuel cell technologies are not currently used but could contribute to decarbonisation?
- What are the life cycle environmental impacts of batteries and fuel cells?
Parliament TV video of the meeting
This is part two of a three part enquiry.
Part one can be found here and part three can be found here.
2020 It's Time To Get Real
Mar 2020
Publication
Gi Editor Sharon Baker-Hallam sits down with Chris Stark CEO of the Committee on Climate Change to talk about this year’s Sir Denis Rooke Memorial Lecture the economic opportunities to be found in going green and why 2020 is a critical year in the ongoing battle against rising global temperatures
Fuel Cell Industry Review 2019 - The Year of the Gigawatt
Jan 2020
Publication
E4tech’s 6th annual review of the global fuel cell industry is now available here. Using primary data straight from the main players and free to download it quantifies shipments by fuel cell type by application and by region of deployment and summarises industry developments over the year.
2019 saw shipments globally grow significantly to 1.1 GW. Numbers grew slightly to around 70000 units. The growth in capacity came mainly from cars Hyundai with its NEXO and Toyota with its Mirai together accounting for around two-thirds of shipments by capacity. Unit numbers are still dominated by Japan’s ene-Farm cogeneration appliances at around 45000 shipments. Large numbers of trucks and buses are now manufactured and shipped in China though numbers deployed are limited by the availability of refuelling infrastructure. But growth in China is uncertain as policy changes are under discussion.
2020 looks like it will be an even bigger year again dominated by Hyundai and Toyota. The Japanese fuel cell market is expected also to grow partly on the back of the Tokyo ‘Hydrogen Olympics’. Korea is another growth story buoyed by its latest roadmap which aims to shift large swathes of its economy to hydrogen energy by 2040. Elsewhere much of the supply chain development is in heavy duty vehicles and big supply chain players like Cummins Weichai and Michelin are making significant investments.
2019 saw shipments globally grow significantly to 1.1 GW. Numbers grew slightly to around 70000 units. The growth in capacity came mainly from cars Hyundai with its NEXO and Toyota with its Mirai together accounting for around two-thirds of shipments by capacity. Unit numbers are still dominated by Japan’s ene-Farm cogeneration appliances at around 45000 shipments. Large numbers of trucks and buses are now manufactured and shipped in China though numbers deployed are limited by the availability of refuelling infrastructure. But growth in China is uncertain as policy changes are under discussion.
2020 looks like it will be an even bigger year again dominated by Hyundai and Toyota. The Japanese fuel cell market is expected also to grow partly on the back of the Tokyo ‘Hydrogen Olympics’. Korea is another growth story buoyed by its latest roadmap which aims to shift large swathes of its economy to hydrogen energy by 2040. Elsewhere much of the supply chain development is in heavy duty vehicles and big supply chain players like Cummins Weichai and Michelin are making significant investments.
Unpacking Leadership-driven Global Scenarios Towards the Paris Agreement: Report Prepared for the UK Committee on Climate Change
Dec 2020
Publication
Outline
This independent report by Vivid Economics and University College London was commissioned to support the Climate Change Committee’s (CCC) 2020 report The Sixth Carbon Budget -The path to Net Zero. This research provided supporting information for Chapter 7 of the CCC’s report which considered the UK’s contribution to the global goals of the Paris Agreement.
Key recommendations
The report models ‘leadership-driven’ global scenarios that could reduce global emissions rapidly to Net Zero and analyses the levers available to developed countries such as the UK to help accelerate various key aspects of the required global transition.
It highlights a set of opportunities for the UK alongside other developed countries to help assist global decarbonisation efforts alongside achieving it’s domestic emissions reduction targets
This independent report by Vivid Economics and University College London was commissioned to support the Climate Change Committee’s (CCC) 2020 report The Sixth Carbon Budget -The path to Net Zero. This research provided supporting information for Chapter 7 of the CCC’s report which considered the UK’s contribution to the global goals of the Paris Agreement.
Key recommendations
The report models ‘leadership-driven’ global scenarios that could reduce global emissions rapidly to Net Zero and analyses the levers available to developed countries such as the UK to help accelerate various key aspects of the required global transition.
It highlights a set of opportunities for the UK alongside other developed countries to help assist global decarbonisation efforts alongside achieving it’s domestic emissions reduction targets
Hydrogen Gas Quality for Gas Network Injection: State of the Art of Three Hydrogen Production Methods
Jun 2021
Publication
The widescale distribution of hydrogen through gas networks is promoted as a viable and cost-efficient option for optimising its application in heat industry and transport. It is a key step towards achieving decarbonisation targets in the UK. A key consideration before the injection of hydrogen into the UK gas networks is an assessment of the difference in hydrogen contaminants presence from different production methods. This information is essential for gas regulation and for further purification requirements. This study investigates the level of ISO 14687 Grade D contaminants in hydrogen from steam methane reforming proton exchange membrane water electrolysis and alkaline electrolysis. Sampling and analysis of hydrogen were carried out by the National Physical Laboratory following ISO 21087 guidance. The results of analysis indicated the presence of nitrogen in hydrogen from electrolysis and water carbon dioxide and particles in all samples analysed. The contaminants were at levels below or at the threshold limits set by ISO 14687 Grade D. This indicates that the investigated production methods are not a source of contaminants for the eventual utilisation of hydrogen in different applications including fuel cell electric vehicles (FCEV’s). The gas network infrastructure will require a similar analysis to determine the likelihood of contamination to hydrogen gas.
Optimisation-based System Designs for Deep Offshore Wind Farms including Power to Gas Technologies
Feb 2022
Publication
A large deployment of energy storage solutions will be required by the stochastic and non-controllable nature of most renewable energy sources when planning for higher penetration of renewable electricity into the energy mix. Various solutions have been suggested for dealing with medium- and long-term energy storage. Hydrogen and ammonia are two of the most frequently discussed as they are both carbon-free fuels. In this paper the authors analyse the energy and cost efficiency of hydrogen and ammonia-based pathways for the storage transportation and final use of excess electricity from an offshore wind farm. The problem is solved as a linear programming problem simultaneously optimising the size of each problem unit and the respective time-dependent operational conditions. As a case study we consider an offshore wind farm of 1.5 GW size located in a reference location North of Scotland. The energy efficiency and cost of the whole chain are evaluated and compared with competitive alternatives namely batteries and liquid hydrogen storage. The results show that hydrogen and ammonia storage can be part of the optimal solution. Moreover their use for long-term energy storage can provide a significant cost-effective contribution to an extensive penetration of renewable energy sources in national energy systems.
Energy System Requirements of Fossil-free Steelmaking using Hydrogen Direct Reduction
May 2021
Publication
The iron and steel industry is one of the world’s largest industrial emitters of greenhouse gases. One promising option for decarbonising the industry is hydrogen direct reduction of iron (H-DR) with electric arc furnace (EAF) steelmaking powered by zero carbon electricity. However to date little attention has been given to the energy system requirements of adopting such a highly energy-intensive process. This study integrates a newly developed long-term energy system planning tool with a thermodynamic process model of H-DR/EAF steelmaking developed by Vogl et al. (2018) to assess the optimal combination of generation and storage technologies needed to provide a reliable supply of electricity and hydrogen. The modelling tools can be applied to any country or region and their use is demonstrated here by application to the UK iron and steel industry as a case study. It is found that the optimal energy system comprises 1.3 GW of electrolysers 3 GW of wind power 2.5 GW of solar 60 MW of combined cycle gas with carbon capture 600 GWh/600 MW of hydrogen storage and 30 GWh/130 MW of compressed air energy storage. The hydrogen storage requirements of the industry can be significantly reduced by maintaining some dispatchable generation for example from 600 GWh with no restriction on dispatchable generation to 140 GWh if 20% of electricity demand is met using dispatchable generation. The marginal abatement costs of a switch to hydrogen-based steelmaking are projected to be less than carbon price forecasts within 5–10 years.
Wax: A Benign Hydrogen-storage Material that Rapidly Releases H2-rich Gases Through Microwave-assisted Catalytic Decomposition
Oct 2016
Publication
Hydrogen is often described as the fuel of the future especially for application in hydrogen powered fuel-cell vehicles (HFCV’s). However its widespread implementation in this role has been thwarted by the lack of a lightweight safe on-board hydrogen storage material. Here we show that benign readily available hydrocarbon wax is capable of rapidly releasing large amounts of hydrogen through microwave-assisted catalytic decomposition. This discovery offers a new material and system for safe and efficient hydrogen storage and could facilitate its application in a HFCV. Importantly hydrogen storage materials made of wax can be manufactured through completely sustainable processes utilizing biomass or other renewable feedstocks.
HyDeploy Report: Summary of Procedural Changes During Trial
Aug 2018
Publication
The assessment of appropriate operational procedures to govern the injection of a hydrogen/natural gas blend into the Keele University G3 gas distribution network was a requirement as part of the HyDeploy project. To perform this assessment a group of gas industry experts (from Cadent Northern Gas Networks and Keele University Estates Team) along with scientists and engineers from the Health & Safety Laboratory came together to form an Operational Procedures Forum. This forum came together periodically in various workshops to explore and assess the impact of hydrogen blended gas on all the relevant and current operational procedures that govern the safe transportation and utilisation of natural gas within the Keele University G3 gas distribution network.
The operational procedures assessment has led to a determination as to whether a change is or is not required for relevant operational procedures where a basis of concern existed with respect to the injection of hydrogen blended gas. The report essentially summarises the key points of the basis of concern for different operational procedures by highlighting the key points of the existing procedure and whether this procedure requires modification for the hydrogen blended gas injection trial. Any requirements to modify an existing procedure have been given in this report referencing the source as to where the detailed analysis for the change/no change recommendation has been given.
The forum took into account the associated experimental and research carried out as part of the HyDeploy project such as the assessment of gas characteristics materials impact asset survey of assets on the Keele G3 GDN and impact of hydrogen blended gas on gas detection equipment references to these studies have been given accordingly to associated impacted operational procedures.
The conclusion of the assessment is that there are some operational procedures that are unchanged some that require an increase in the frequency as to how often they are performed and some procedures which require a fundamental modification. Therefore it is necessary that an appropriate training package is built off the back of the results presented in this report and disseminated accordingly to all relevant Operatives that will be responsible for the safety operation and maintenance of the Keele G3 GDN during the hydrogen blend injection period.
Click on Supplements to see the other documents from this report
The operational procedures assessment has led to a determination as to whether a change is or is not required for relevant operational procedures where a basis of concern existed with respect to the injection of hydrogen blended gas. The report essentially summarises the key points of the basis of concern for different operational procedures by highlighting the key points of the existing procedure and whether this procedure requires modification for the hydrogen blended gas injection trial. Any requirements to modify an existing procedure have been given in this report referencing the source as to where the detailed analysis for the change/no change recommendation has been given.
The forum took into account the associated experimental and research carried out as part of the HyDeploy project such as the assessment of gas characteristics materials impact asset survey of assets on the Keele G3 GDN and impact of hydrogen blended gas on gas detection equipment references to these studies have been given accordingly to associated impacted operational procedures.
The conclusion of the assessment is that there are some operational procedures that are unchanged some that require an increase in the frequency as to how often they are performed and some procedures which require a fundamental modification. Therefore it is necessary that an appropriate training package is built off the back of the results presented in this report and disseminated accordingly to all relevant Operatives that will be responsible for the safety operation and maintenance of the Keele G3 GDN during the hydrogen blend injection period.
Click on Supplements to see the other documents from this report
Hydrogen Power Focus Shifts from Cars to Heavy Vehicles
Oct 2020
Publication
Hydrogen has been hailed as a promising energy carrier for decades. But compared to the thriving success of hybrid and plug-in electric cars the prospects for cars powered by hydrogen fuel cells have recently diminished mostly due to challenges in bringing down the costs of fuel cells and developing a broad network of fuelling stations.<br/>Beginning in March 2020 three major auto manufacturers—Daimler AG] Volkswagen and General Motors (GM)]—followed the April 2019 move by Honda to back out of the hydrogen-powered passenger car market. Instead these companies and others are looking to develop the technology as an emission-free solution to power heavy commercial and military vehicles with refuelling taking place at centralized locations.
Parametric Study of Pt/C-Catalysed Hydrothermal Decarboxylation of Butyric Acid as a Potential Route for Biopropane Production
Jun 2021
Publication
Sustainable fuel-range hydrocarbons can be produced via the catalytic decarboxylation of biomass-derived carboxylic acids without the need for hydrogen addition. In this present study 5 wt% platinum on carbon (Pt/C) has been found to be an effective catalyst for hydrothermally decarboxylating butyric acid in order to produce mainly propane and carbon dioxide. However optimisation of the reaction conditions is required to minimise secondary reactions and increase hydrocarbon selectivity towards propane. To do this reactions using the catalyst with varying parameters such as reaction temperatures residence times feedstock loading and bulk catalyst loading were carried out in a batch reactor. The highest yield of propane obtained was 47 wt% (close to the theoretical decarboxylation yield of 50 wt% on butyric acid basis) corresponding to a 96% hydrocarbon selectivity towards propane. The results showed that the optimum parameters to produce the highest yield of propane from the range investigated were 0.5 g butyric acid (0.57 M aqueous solution) 1.0 g Pt/C (50 mg Pt content) at 300 °C for 1 h. The reusability of the catalyst was also investigated which showed little or no loss of catalytic activity after four cycles. This work has shown that Pt/C is a suitable and potentially hydrothermally stable heterogeneous catalyst for making biopropane a major component of bioLPG from aqueous butyric acid solutions which can be sourced from bio-derived feedstocks via acetone-butanol-ethanol (ABE) fermentation.
Hydrogen/Manganese Hybrid Redox Flow Battery
Dec 2018
Publication
Electrochemical energy storage is a key enabling technology for further integration of renewables sources. Redox flow batteries(RFBs) are promising candidates for such applications as a result of their durability efficiency and fast response. However deployment of existing RFBs is hindered by the relatively high cost of the (typically vanadium-based) electrolyte. Manganese is an earth-abundant and inexpensive element that is widely used in disposable alkaline batteries. However it has hitherto been little explored for RFBs due to the instability of Mn(III) leading to precipitation of MnO2 via a disproportionation reaction. Here we show that by combining the facile hydrogen negative electrode reaction with electrolytes that suppress Mn(III) disproportionation it is possible to construct a hydrogen/manganese hybrid RFB with high round trip energy efficiency (82%) and high power and energy density (1410 mW cm−2 33 Wh l−1 ) at an estimated 70% cost reduction compared to vanadium redox flow batteries.
Green Hydrogen Powering Sustainable Festivals: Public Perceptions of Generators, Production and Ownership
Nov 2022
Publication
This paper is the first to explore public perceptions about a particular market niche for hydrogen; mobile generators. By utilising a combined research approach including in-situ surveys and online focus groups this paper explores what festival audience members and residents who live near festival sites think about the displacement of incumbent diesel generator technology with hydrogen alternatives. We investigate if hydrogen production methods are important in informing perceptions and subsequent support including the extent to which participants are influenced by the organisation or entity that produces the fuel and stands to profit from its sale. In addition to a primary focus on hydrogen energy we reflect upon how sustainability might be better conceptualised in a festival context. Our findings reveal broad support for hydrogen generators the use of green hydrogen as a fuel to generate electricity and community-led hydrogen production.
Materials for End to End Hydrogen Roadmap
Jun 2021
Publication
This report is commissioned by the Henry Royce Institute for advanced materials as part of its role around convening and supporting the UK advanced materials community to help promote and develop new research activity. The overriding objective is to bring together the advanced materials community to discuss analyse and assimilate opportunities for emerging materials research for economic and societal benefit. Such research is ultimately linked to both national and global drivers namely Transition to Zero Carbon Sustainable Manufacture Digital & Communications Circular Economy as well as Health & Wellbeing.
This paper can be download from their website
This paper can be download from their website
The Role of Hydrogen in Powering Industry: APPG on Hydrogen report
Jul 2021
Publication
The APPG on Hydrogen has published its report urging the Government to deliver beyond its existing net zero commitments and set ambitious hydrogen targets in forthcoming strategies to reach net zero by 2050.
The All-Party Parliamentary Group (APPG) on Hydrogen’s report on the role of ‘Hydrogen in powering industry’ sets out 10 recommendations to support and accelerate the growth of the UK’s hydrogen sector and enable a sustainable energy transition.
The All-Party Parliamentary Group (APPG) on Hydrogen’s report on the role of ‘Hydrogen in powering industry’ sets out 10 recommendations to support and accelerate the growth of the UK’s hydrogen sector and enable a sustainable energy transition.
- The Government must continue to expand beyond its existing commitments of 5GW production in the forthcoming Hydrogen Strategy.
- Any forthcoming Government and devolved policies must be complementary of the wider UK low-carbon commitments.
- Industrial clusters should be prioritised for hydrogen use and will be the key catalyst for driving forward the UK’s decarbonisation of industry.
- The Government must commit to incentivising hydrogen production within the UK as opposed to importing this.
- The Government must align hydrogen production pathways with nuclear technology to enhance hydrogen production.
- The Government must develop a UK wide hydrogen network to support the transport sector including a larger-scale implementation of hydrogen refuelling stations.
- Regulators must act quickly to update energy regulations and guidance to support hydrogen’s role in powering industry.
- For hydrogen to expand in the UK a technology neutral approach is required for all types of energy systems.
- Significant and long-term financial support is required for the development deployment and operation of hydrogen technologies.
- Ofgem must ensure the hydrogen market is subject to effective competition to drive down prices for consumers.
Power-to-gas for Injection into the Gas Grid: What Can We Learn from Real-life Projects, Economic Assessments and Systems Modelling
Sep 2018
Publication
Power-to-gas is a key area of interest for decarbonisation and increasing flexibility in energy systems as it has the potential both to absorb renewable electricity at times of excess supply and to provide backup energy at times of excess demand. By integrating power-to-gas with the natural gas grid it is possible to exploit the inherent linepack flexibility of the grid and shift some electricity variability onto the gas grid. Furthermore provided the gas injected into the gas grid is low-carbon such as hydrogen from renewable power-to-gas then overall greenhouse gas emissions from the gas grid can be reduced.<br/>This work presents the first review of power-to-gas to consider real-life projects economic assessments and systems modelling studies and to compare them based on scope assumptions and outcomes. The review focuses on power-to-gas for injection into the gas grid as this application has specific economic technical and modelling opportunities and challenges.<br/>The review identified significant interest in and potential for power-to-gas in combination with the gas grid however there are still challenges to overcome to find profitable business cases and manage local and system-wide technical issues. Whilst significant modelling of power-to-gas has been undertaken more is needed to fully understand the impacts of power-to-gas and gas grid injection on the operational behaviour of the gas grid taking into account dynamic and spatial effects.
Hydrous Hydrazine Decomposition for Hydrogen Production Using of Ir/CeO2: Effect of Reaction Parameters on the Activity
May 2021
Publication
In the present work an Ir/CeO2 catalyst was prepared by the deposition–precipitation method and tested in the decomposition of hydrazine hydrate to hydrogen which is very important in the development of hydrogen storage materials for fuel cells. The catalyst was characterised using different techniques i.e. X-ray photoelectron spectroscopy (XPS) transmission electron microscopy (TEM) scanning electron microscopy (SEM) equipped with X-ray detector (EDX) and inductively coupled plasma—mass spectroscopy (ICP-MS). The effect of reaction conditions on the activity and selectivity of the material was evaluated in this study modifying parameters such as temperature the mass of the catalyst stirring speed and concentration of base in order to find the optimal conditions of reaction which allow performing the test in a kinetically limited regime.
Rational Design and Application of Covalent Organic Frameworks for Solar Fuel Production
Jul 2021
Publication
Harnessing solar energy and converting it into renewable fuels by chemical processes such as water splitting and carbon dioxide (CO2 ) reduction is a highly promising yet challenging strategy to mitigate the effects arising from the global energy crisis and serious environmental concerns. In recent years covalent organic framework (COF)-based materials have gained substantial research interest because of their diversified architecture tunable composition large surface area and high thermal and chemical stability. Their tunable band structure and significant light absorption with higher charge separation efficiency of photoinduced carriers make them suitable candidates for photocatalytic applications in hydrogen (H2) generation CO2 conversion and various organic transformation reactions. In this article we describe the recent progress in the topology design and synthesis method of COF-based nanomaterials by elucidating the structure-property correlations for photocatalytic hydrogen generation and CO2 reduction applications. The effect of using various kinds of 2D and 3D COFs and strategies to control the morphology and enhance the photocatalytic activity is also summarized. Finally the key challenges and perspectives in the field are highlighted for the future development of highly efficient COF-based photocatalysts.
Suspension Plasma Sprayed Coatings Using Dilute Hydrothermally Produced Titania Feedstocks for Photocatalytic Applications
May 2015
Publication
Titanium dioxide coatings have potential applications including photocatalysts for solar assisted hydrogen production solar water disinfection and self-cleaning windows. Herein we report the use of suspension plasma spraying (SPS) for the deposition of conformal titanium dioxide coatings. The process utilises a nanoparticle slurry of TiO2 (ca. 6 and 12 nm respectively) in water which is fed into a high temperature plasma jet (ca. 7000–20 000 K). This facilitated the deposition of adherent coatings of nanostructured titanium dioxide with predominantly anatase crystal structure. In this study suspensions of nano-titanium dioxide made via continuous hydrothermal flow synthesis (CHFS) were used directly as a feedstock for the SPS process. Coatings were produced by varying the feedstock crystallite size spray distance and plasma conditions. The coatings produced exhibited ca. 90–100% anatase phase content with the emainder being rutile (demonstrated by XRD). Phase distribution was homogenous throughout the coatings as determined by micro-Raman spectroscopy. The coatings had a granular surface with a high specific surface area and consisted of densely packed agglomerates interspersed with some melted material. All of the coatings were shown to be photoactive by means of a sacrificial hydrogen evolution test under UV radiation and compared favourably with reported values for CVD coatings and compressed discs of P25.
Acorn: Developing Full-chain Industrial Carbon Capture and Storage in a Resource- and Infrastructure-rich Hydrocarbon Province
Jun 2019
Publication
Juan Alcalde,
Niklas Heinemann,
Leslie Mabon,
Richard H. Worden,
Heleen de Coninck,
Hazel Robertson,
Marko Maver,
Saeed Ghanbari,
Floris Swennenhuis,
Indira Mann,
Tiana Walker,
Sam Gomersal,
Clare E. Bond,
Michael J. Allen,
Stuart Haszeldine,
Alan James,
Eric J. Mackay,
Peter A. Brownsort,
Daniel R. Faulkner and
Steve Murphy
Research to date has identified cost and lack of support from stakeholders as two key barriers to the development of a carbon dioxide capture and storage (CCS) industry that is capable of effectively mitigating climate change. This paper responds to these challenges through systematic evaluation of the research and development process for the Acorn CCS project a project designed to develop a scalable full-chain CCS project on the north-east coast of the UK. Through assessment of Acorn's publicly-available outputs we identify strategies which may help to enhance the viability of early-stage CCS projects. Initial capital costs can be minimised by infrastructure re-use particularly pipelines and by re-use of data describing the subsurface acquired during oil and gas exploration activity. Also development of the project in separate stages of activity (e.g. different phases of infrastructure re-use and investment into new infrastructure) enables cost reduction for future build-out phases. Additionally engagement of regional-level policy makers may help to build stakeholder support by situating CCS within regional decarbonisation narratives. We argue that these insights may be translated to general objectives for any CCS project sharing similar characteristics such as legacy infrastructure industrial clusters and an involved stakeholder-base that is engaged with the fossil fuel industry.
Environmental Sustainability of Renewable Hydrogen in Comparison with Conventional Cooking Fuels
Jun 2018
Publication
Hydrogen could be used as a ‘cleaner’ cooking fuel particularly in communities that rely on biomass and fossil fuels to reduce local pollution and related health effects. However hydrogen must be produced using sustainable feedstocks and energy sources to ensure that local impacts are not reduced at the expense of other impacts generated elsewhere in the life cycle. To this end this paper evaluates life cycle environmental impacts of renewable hydrogen produced in a proton-exchange membrane electrolyser using solar energy. The aim of the study is to find out if hydrogen produced in this system and used as a cooking fuel is environmentally sustainable in comparison with conventional cooking fuels typically used in developing countries such as liquefied petroleum gas (LPG) charcoal and firewood. The results suggest that hydrogen would reduce the climate change impact by 2.5–14 times to 0.04 kg CO2 eq./MJ compared to firewood (0.10 kg CO2 eq./MJ) and LPG (0.57 kg CO2 eq./MJ). Some other impacts would also be lower by 6%–35 times including depletion of fossil fuels summer smog and health effects from emissions of particulates both locally and across the rest of the life cycle. However some other impacts would increase by 6%–6.7 times such as depletion of metals and freshwater and marine ecotoxicity. These are mainly due to the solar photovoltaic panels used to generate power for the electrolyser. In terms of the local impacts the study suggests that hydrogen would reduce local pollution and related health impacts by 8%–35 times. However LPG is still environmentally a better option than hydrogen for most of the impacts both at the point of use and on a life cycle basis.
Hy4Heat Safety Assessment: Conclusions Report (Incorporating Quantitative Risk Assessment) - Work Package 7
May 2021
Publication
The Hy4Heat Safety Assessment has focused on assessing the safe use of hydrogen gas in certain types of domestic properties and buildings. The summary reports (the Precis and the Safety Assessment Conclusions Report) bring together all the findings of the work and should be looked to for context by all readers. The technical reports should be read in conjunction with the summary reports. While the summary reports are made as accessible as possible for general readers the technical reports may be most accessible for readers with a degree of technical subject matter understanding. All of the safety assessment reports have now been reviewed by the HSE.<br/><br/>A comparative risk assessment of natural gas versus hydrogen gas including a quantitative risk assessment; and identification of control measures to reduce risk and manage hydrogen gas safety for a community demonstration.
Hydrogen from Natural Gas – The Key to Deep Decarbonisation
Jul 2019
Publication
This Discussion Paper was commissioned by Zukunft ERDGAS to contribute to the debate concerning the deep decarbonisation of the European energy sector required to meet the Paris Agreement targets. Previous discussion papers have put forward decarbonisation pathways that rely heavily on ‘All-Electric’ solutions. These depend predominantly on renewable electricity to deliver decarbonisation of all sectors. This paper offers an alternative to an ‘All-Electric’ solution by building an alternative pathway that allows the inclusion of gas based technologies alongside the ‘All-Electric’ pathway technologies. The new pathway demonstrates that hydrogen from natural gas can be an essential complement to renewable electricity. The pathway also considers the benefits of utilising methane pyrolysis technology in Europe to produce zero carbon hydrogen.
Read the full report at this link
Read the full report at this link
Hydrogen: Untapped Energy?
Jan 2012
Publication
Hydrogen has potential applications across our future energy systems due particularly to its relatively high energy weight ratio and because it is emission-free at the point of use. Hydrogen is also abundant and versatile in the sense that it could be produced from a variety of primary energy sources and chemical substances including water and used to deliver power in a variety of applications including fuel cell combined heat and power technologies. As a chemical feedstock hydrogen has been used for several decades and such expertise could be fed back into the relatively new areas of utilising hydrogen to meet growing energy demands.<br/>The UK interest in hydrogen is also growing with various industrial academic and governmental organisations investigating how hydrogen could be part of a diverse portfolio of options for a low carbon future. While hydrogen as an alternative fuel is yet to command mass-appeal in the UK energy market IGEM believes hydrogen is capable of allowing us to use the wide range of primary energy sources at our disposal in a much greener and sustainable way.<br/>IGEM also sees hydrogen playing a small but key role in the gas industry whereby excess renewable energy is used to generate hydrogen which is then injected into the gas grid for widespread distribution and consumption. Various studies suggest admixtures containing up to 10 – 50%v/v hydrogen could be safely administered into the existing natural gas infrastructure. However IGEM understands that this would currently not be permissible under the Gas Safety (Management) Regulations (GS(M)R) for gas conveyance here in the UK. Also proper assessments of the risks associated with adding hydrogen to natural gas streams will need to be performed so that such systems can be managed effectively.<br/>IGEM has also identified a need for standards that cover the safety requirements of hydrogen technologies particularly those pertaining to installations in commercial or domestic environments. IGEM also recommend that the technical measures used to determine separation distances for hydrogen installations particularly refuelling stations are re-assessed through a systematic identification and control of potential sources of ignition.<br/>Hydrogen has the potential to be a significant fuel of the future and part of a diverse portfolio of energy options capable of meeting growing energy needs. This report therefore seeks to demonstrate how hydrogen could be a potential option for energy storage and power generation in a diverse energy system. It also aims to inform the readers on the current state of hydrogen here in the UK and abroad. This report has been assembled for IGEM members interested bodies and the general public.
Challenges to the Future of LNG: Decarbonisation, Affordability, and Profitability
Oct 2019
Publication
Decarbonisation should be very much on the radar of new LNG projects currently taking FID commissioning around 2024-25 and planning to operate up to 2050. The LNG community needs to replace an `advocacy’ message – based on the generality of emissions from combustion of natural gas being lower than from other fossil fuels – with certified data on carbon and methane emissions from specific elements of the value chain for individual projects. As carbon reduction targets tighten over the coming decade LNG cargoes which do not have value chain emissions certified by accredited authorities or which fail to meet defined emission levels run the risk of progressively being deemed to have a lower commercial value and eventually being excluded from jurisdictions with the strictest standards. There will be no place in this process for confidentiality; nothing less than complete transparency of data and methodologies will be acceptable.<br/>In relation to affordability prospects for new projects look much better than they did three years ago. Cost estimates for most new projects suggest that they will be able to deliver profitably to most established and anticipated import markets at or below the wholesale prices prevailing in those markets over the past decade although affordability in south Asian countries may be challenging. But new projects need to factor in costs related to future decarbonisation requirements in both exporting and importing countries. To the extent that LNG suppliers can meet standards through relatively low-cost offsets – forest projects low-cost biogas and biomethane – this may not greatly impact their commercial viability. However any requirement to transform methane into hydrogen with CCS in either the exporting or importing country would substantially impact project economics and the affordability of LNG relative to other energy choices.
Sulfide Stress Cracking of C-110 Steel in a Sour Environment
Jul 2021
Publication
The scope of this study includes modeling and experimental investigation of sulfide stress cracking (SSC) of high-strength carbon steel. A model has been developed to predict hydrogen permeation in steel for a given pressure and temperature condition. The model is validated with existing and new laboratory measurements. The experiments were performed using C-110 grade steel specimens. The specimens were aged in 2% (wt.) brine saturated with mixed gas containing CH4 CO2 and H2S. The concentration H2S was maintained constant (280 ppm) while varying the partial pressure ratio of CO2 (i.e. the ratio of partial pressure of CO2 to the total pressure) from 0 to 15%. The changes occurring in the mechanical properties of the specimens were evaluated after exposure to assess material embrittlement and SSC corrosion. Besides this the cracks developed on the surface of the specimens were examined using an optical microscope. Results show that the hydrogen permeation and subsequently SSC resistance of C-110 grade steel were strongly influenced by the Partial Pressure Ratio (PPR) of CO2 when the PPR was between 0 and 5%. The PPR of CO2 had a limited impact on the SSC process when it was between 10 and 15 percent.
The UK Carbon Capture, Usage and Storage (CCUS) Deployment Pathway: An Action Plan
Nov 2018
Publication
CCUS has economy-wide qualities which could be very valuable to delivering clean industrial growth. It could deliver tangible results in tackling some of the biggest challenges we face in decarbonising our economy contributing to industrial competitiveness and generating new economic opportunities – a key part of our modern Industrial Strategy.
Our vision is to become a global leader in CCUS unlocking the potential of the technology and securing the added value which it can bring to our industrial centres and businesses all across the UK.
Our ambition is that the UK should have the option to deploy CCUS at scale during the 2030s subject to the costs coming down sufficiently.
Our Industrial Strategy set out four Grand Challenges to put the UK at the forefront of the industries of the future. The Clean Growth Grand Challenge seeks to maximise the advantages for UK industry from the global shift to clean growth. CCUS can be an important part of achieving these objectives.
Our vision is to become a global leader in CCUS unlocking the potential of the technology and securing the added value which it can bring to our industrial centres and businesses all across the UK.
Our ambition is that the UK should have the option to deploy CCUS at scale during the 2030s subject to the costs coming down sufficiently.
Our Industrial Strategy set out four Grand Challenges to put the UK at the forefront of the industries of the future. The Clean Growth Grand Challenge seeks to maximise the advantages for UK industry from the global shift to clean growth. CCUS can be an important part of achieving these objectives.
Energy Transition: Measurement Needs for Carbon Capture, Usage and Storage
Jan 2021
Publication
This latest report describes the potential for CCUS as an important technology during the UK’s energy transition and focuses on the role that metrology (the science of measurement) could play in supporting its deployment. High priority measurement needs and challenges identified within this report include:
- Measuring and comparing the efficiency of different capture techniques and configurations to provide confidence in investments into technologies;
- Improving equations of state to support the development of accurate models used for controlling operational conditions;
- Improving CO2 flow measurement to support fiscal and financial metering as well as process control and;
- Improving the understanding and validation of dispersion models for emitted CO2 including plume migration to support safety assessment.
EU Hydrogen Vision: Regulatory Opportunities and Challenges
Sep 2020
Publication
This Insight provides an overview of the recent EU Commission Hydrogen Strategy Energy System Integration Strategy and Industrial Strategy focusing on regulatory issues impacting hydrogen. It looks at the proposed classification and preferences for different sources of hydrogen financial and regulatory support for development of hydrogen supply demand and infrastructure as well as potential regulation of hydrogen markets. Whilst the Hydrogen Strategy underlines the need for hydrogen to decarbonise the economy the Insight concludes that the EU has shown a clear preference for hydrogen based on renewable electricity at the expense of low carbon hydrogen from natural gas even though it recognises the need for low carbon hydrogen. In addition further detail is required on the support mechanisms and regulatory framework if development of new hydrogen value chain is to succeed. Lastly there is little sign that the Commission recognises the change in regulatory approach from the current natural gas framework which will be needed because of the different challenges facing the development of a hydrogen market.
Paper can be downloaded on their website
Paper can be downloaded on their website
Transport Pathway to Hydrogen webinar
Mar 2021
Publication
Webinar to accompany the launch of the Cadent Future Role of Gas in Transport report which can be found here
Advances in Reforming and Partial Oxidation of Hydrocarbons for Hydrogen Production and Fuel Cell Applications
May 2019
Publication
One of the most attractive routes for the production of hydrogen or syngas for use in fuel cell applications is the reforming and partial oxidation of hydrocarbons. The use of hydrocarbons in high temperature fuel cells is achieved through either external or internal reforming. Reforming and partial oxidation catalysis to convert hydrocarbons to hydrogen rich syngas plays an important role in fuel processing technology. The current research in the area of reforming and partial oxidation of methane methanol and ethanol includes catalysts for reforming and oxidation methods of catalyst synthesis and the effective utilization of fuel for both external and internal reforming processes. In this paper the recent progress in these areas of research is reviewed along with the reforming of liquid hydrocarbons from this an overview of the current best performing catalysts for the reforming and partial oxidizing of hydrocarbons for hydrogen production is summarized.
Gas Goes Green: A System for All Seasons
Oct 2021
Publication
‘A System For All Seasons’ analyses Britain’s electricity generation and consumption trends concluding that the country’s wind and solar farms will have enough spare electricity generated in spring and summer when demand is lower to produce green hydrogen to the equivalent capacity of 25 Hinkley Point C nuclear power plants.
The hydrogen stored would provide the same amount of energy needed for every person in the UK to charge a Tesla Model S electric vehicle more than 21 times in the autumn and winter months when energy demand is highest creating a clean energy buffer that avoids having to manage limited energy supplies on the international markets.
Crucially the research finds that the UK has enough capacity to store the hydrogen in a combination of salt caverns and disused oil and gas fields in the North Sea as well other locations to meet this demand.
The research also finds that using renewable hydrogen will help reduce the total number of wind farms needed in 2050 by more than 75% because it will ensure electricity generated by Britain’s wind farms is used as efficiently as possible by avoiding surplus electricity going to waste.
‘A System For All Seasons’ finds that:
The hydrogen stored would provide the same amount of energy needed for every person in the UK to charge a Tesla Model S electric vehicle more than 21 times in the autumn and winter months when energy demand is highest creating a clean energy buffer that avoids having to manage limited energy supplies on the international markets.
Crucially the research finds that the UK has enough capacity to store the hydrogen in a combination of salt caverns and disused oil and gas fields in the North Sea as well other locations to meet this demand.
The research also finds that using renewable hydrogen will help reduce the total number of wind farms needed in 2050 by more than 75% because it will ensure electricity generated by Britain’s wind farms is used as efficiently as possible by avoiding surplus electricity going to waste.
‘A System For All Seasons’ finds that:
- Britain’s wind and solar farms could generate between 60-80GW of renewable hydrogen - the equivalent capacity of 25 Hinkley Point C nuclear power plants - from spare renewable electricity generated in the spring and summer months between May and October each year.
- Running the energy system this way will reduce the need for the total electricity generating capacity of UK wind farms from 500-600GW by 2050 down to 140-190GW – a reduction of up to 76%.
- It would mean Great Britain would be using spare renewable electricity that would otherwise go to waste to produce green hydrogen. Under the alternative scenario additional wind farms would need to be built to accommodate for autumn and wind energy demand peaks but be left unused during other times of the year.
- With 140-190GW of wind generation capacity 115 to 140TWh of green hydrogen would be stored – enough energy for every person in the UK to charge a Tesla Model S more than 21 times.
- The potential storage volume from Britain’s salt fields ranges from >1TWh up to 30TWh. For disused oil and gas fields the potential storage volume for individual sites ranges from ~1TWh up to 330TWh.
The Synergistic Effects of Alloying on the Performance and Stability of Co3Mo and Co7Mo6 for the Electrocatalytic Hydrogen Evolution Reaction
Oct 2020
Publication
Metal alloys have become a ubiquitous choice as catalysts for electrochemical hydrogen evolution in alkaline media. However scarce and expensive Pt remains the key electrocatalyst in acidic electrolytes making the search for earth-abundant and cheaper alternatives important. Herein we present a facile and efficient synthetic route towards polycrystalline Co3Mo and Co7Mo6 alloys. The single-phased nature of the alloys is confirmed by X-ray diffraction and electron microscopy. When electrochemically tested they achieve competitively low overpotentials of 115 mV (Co3Mo ) and 160 mV (Co7Mo6 ) at 10 mA cm−2 in 0.5 M H2SO4 and 120 mV (Co3Mo ) and 160 mV (Co7Mo6 ) at 10 mA cm−2 in 1 M KOH. Both alloys outperform Co and Mo metals which showed significantly higher overpotentials and lower current densities when tested under identical conditions confirming the synergistic effect of the alloying. However the low overpotential in Co3Mo comes at the price of stability. It rapidly becomes inactive when tested under applied potential bias. On the other hand Co7Mo6 retains the current density over time without evidence of current decay. The findings demonstrate that even in free-standing form and without nanostructuring polycrystalline bimetallic electrocatalysts could challenge the dominance of Pt in acidic media if ways for improving their stability were found.
Sorption-enhanced Steam Methane Reforming for Combined CO2 Capture and Hydrogen Production: A State-of-the-Art Review
Oct 2021
Publication
The European Commission have just stated that hydrogen would play a major role in the economic recovery of post-COVID-19 EU countries. Hydrogen is recognised as one of the key players in a fossil fuel-free world in decades to come. However commercially practiced pathways to hydrogen production todays are associated with a considerable amount of carbon emissions. The Paris Climate Change Agreement has set out plans for an international commitment to reduce carbon emissions within the forthcoming decades. A sustainable hydrogen future would only be achievable if hydrogen production is “designed” to capture such emissions. Today nearly 98% of global hydrogen production relies on the utilisation of fossil fuels. Among these steam methane reforming (SMR) boasts the biggest share of nearly 3 50% of the global generation. SMR processes correspond to a significant amount of carbon emissions at various points throughout the process. Despite the dark side of the SMR processes they are projected to play a major role in hydrogen production by the first half of this century. This that a sustainable yet clean short/medium-term hydrogen production is only possible by devising a plan to efficiently capture this co-produced carbon as stated in the latest International Energy Agency (IEA) reports. Here we have carried out an in-depth technical review of the processes employed in sorption-enhanced steam methane reforming (SE-SMR) an emerging technology in low-carbon SMR for combined carbon capture and hydrogen production. This paper aims to provide an in-depth review on two key challenging elements of SE-SMR i.e. the advancements in catalysts/adsorbents preparation and current approaches in process synthesis and optimisation including the employment of artificial intelligence in SE-SMR processes. To the best of the authors‟ knowledge there is a clear gap in the literature where the above areas have been scrutinised in a systematic and coherent fashion. The gap is even more pronounced in the application of AI in SE-SMR technologies. As a result this work aims to fill this gap within the scientific literature.
Policy-driven, Narrative-based Evidence Gathering: UK Priorities for Decarbonisation Through Biomass
May 2015
Publication
Evidence-based policy-making has been a much-debated concept. This paper builds on various insights for a novel perspective: policy-driven narrative-based evidence gathering. In a case study of UK priority setting for bioenergy innovation documents and interviews were analysed to identify links between diagnoses of the problem societal visions policy narratives and evidence gathering. This process is illuminated by the theoretical concept of sociotechnical imaginaries—technoscientific projects which the state should promote for a feasible desirable future. Results suggest that evidence has been selectively generated and gathered within a specific future vision whereby bioenergy largely provides an input-substitute within the incumbent centralised infrastructure. Such evidence is attributed to an external expertise thus helping to legitimise the policy framework. Evidence has helped to substantiate policy commitments to expand bioenergy. The dominant narrative has been reinforced by the government’s multi-stakeholder consultation favouring the incumbent industry and by incentive structures for industry co-investment.
The Role of Hydrogen in Achieving Net Zero: Parliamentary Inquiry
Mar 2021
Publication
A key component of the Government's recently announced ‘Ten Point Plan for a Green Industrial Revolution’ is 'Driving the Growth of Low Carbon Hydrogen'. The plan outlined a range of measures to support the development and adoption of hydrogen including a £240 million 'Net Zero Hydrogen Fund'. Noting this and the further £81 million allocated for hydrogen heating trials in the 2020 Spending Review the House of Commons Science and Technology Committee is today launching a new inquiry into the role of hydrogen in achieving Net Zero.
Following recommendations from the Committee on Climate Change that the Government develop a strategy for hydrogen use and should aim for largescale hydrogen trials to begin in the early 2020s the Committee seeks to ensure that the Government's intended plan will be suitable and effective. The Committee will also assess the infrastructure required for hydrogen as a Net Zero fuel and examine progress made so far internationally to determine the viability of hydrogen as a significant contributor to achieving Net Zero.
All documents are in the Supplements tab above.
Following recommendations from the Committee on Climate Change that the Government develop a strategy for hydrogen use and should aim for largescale hydrogen trials to begin in the early 2020s the Committee seeks to ensure that the Government's intended plan will be suitable and effective. The Committee will also assess the infrastructure required for hydrogen as a Net Zero fuel and examine progress made so far internationally to determine the viability of hydrogen as a significant contributor to achieving Net Zero.
All documents are in the Supplements tab above.
Synergistic Hybrid Marine Renewable Energy Harvest System
Mar 2024
Publication
This paper proposes a novel hybrid marine renewable energy-harvesting system to increase energy production reduce levelized costs of energy and promote renewable marine energy. Firstly various marine renewable energy resources and state-of-art technologies for energy exploitation and storage were reviewed. The site selection criteria for each energy-harvesting approach were identified and a scoring matrix for site selection was proposed to screen suitable locations for the hybrid system. The Triton Knoll wind farm was used to demonstrate the effectiveness of the scoring matrix. An integrated energy system was designed and FE modeling was performed to assess the effects of additional energy devices on the structural stability of the main wind turbine structure. It has been proven that the additional energy structures have a negligible influence on foundation/structure deflection.
HyMotion- Network Supplied Hydrogen Unlocks Low Carbon Opportunities
Jun 2019
Publication
The Government’s recently published ‘Road to Zero’ strategy sets out objectives to electrify cars and reduce emissions from heavy goods vehicles (HGVs) through policies such as ending the sale of diesel and petrol cars and subsidising electric charging infrastructure. The CCC response to the strategy however stated that the proposed measures do not go far enough. New Government policies combined with action from industry will be required for mobility related carbon reduction targets to be met.<br/>Hydrogen has been identified by the Government and CCC as one potential solution. The CCC report on a possible future hydrogen economy recognises that in particular hydrogen may have an important role to play for long distance journeys and heavy goods transport. This view was echoed further in the recent CCC ‘Net Zero’ report.<br/>Cadent’s HyNet project will produce low carbon hydrogen through reformation of natural gas combined with carbon capture utilisation and storage (CCUS). HyNet has primarily been designed to supply low carbon heat to industry and a blend of hydrogen to Cadent’s existing natural gas network but also provides the opportunity to supply low cost hydrogen for mobility. The HyMotion project has considered the relative merits of such an approach modelled potential demand scenarios and sought to determine technical and commercial solutions to enable deployment.<br/>Hydrogen fuel cell electric vehicles (FCEVs) share powertrain technologies with battery electric vehicles (BEVs) but the roll-out of BEVs is currently ahead of FCEVs. This is largely due to a lack of low cost low carbon bulk hydrogen production and refuelling infrastructure both of which HyNet seeks to address.
The Effect of Symmetrically Tilt Grain Boundary of Aluminum on Hydrogen Diffusion
Feb 2022
Publication
High-strength aluminum alloys are widely used in industry. Hydrogen embrittlement greatly reduces the performance and service safety of aluminum alloys. The hydrogen traps in aluminum profoundly affect the hydrogen embrittlement of aluminum. Here we took a coincidence-site lattice (CSL) symmetrically tilted grain boundary (STGB) Σ5(120)[001] as an example to carry out molecular dynamics (MD) simulations of hydrogen diffusion in aluminum at different temperatures and to obtain results and rules consistent with the experiment. At 700 K three groups of MD simulations with concentrations of 0.5 2.5 and 5 atomic % hydrogen (at. % H) were carried out for STGB models at different angles. By analyzing the simulation results and the MSD curves of hydrogen atoms we found that in the low hydrogen concentration of STGB models the grain boundaries captured hydrogen atoms and hindered their movement. In high-hydrogen-concentration models the diffusion rate of hydrogen atoms was not affected by the grain boundaries. The analysis of the simulation results showed that the diffusion of hydro-gen atoms at the grain boundary is anisotropic.
HyDeploy Report: Summary of Gas Appliance and Installation Testing
Jun 2018
Publication
The HyDeploy project has undertaken a programme of work to assess the effect of hydrogen addition on the safety and performance of gas appliances and installations. A representative set of eight appliances have been assessed in laboratory experiments with a range of test gases that explored high and low Wobbe Index and hydrogen concentrations up to 28.4 % mol/mol. These tests have demonstrated that the addition of hydrogen does not affect the key hazard areas of CO production light back flame out or the operation of flame failure devices. It was identified that for some designs of gas fire appliances the operation of the oxygen depletion sensors may be affected by the addition of hydrogen. Testing of the gas fires that are present at Keele University that use oxygen depletion sensors have been shown to operate satisfactorily.<br/>A comprehensive onsite survey programme at Keele University has assessed 95% of the installations (126 of 133) that will receive the hydrogen blended gas during the HyDeploy trial. Where access to properties was not possible then the information obtained revealed that the appliances were annually checked either through British Gas service contracts or as a result of being rental properties. The onsite testing programme assessed installations for gas tightness and appliance combustion safety and operation with normal line gas G20 reference gas and two hydrogen blended gases. The checks identified a small number instances were remedial work was required to correct poor condition or operation. Only one case was found to be immediately dangerous which was capped off until repair work was undertaken. CO and smoke alarms were fitted in approximately half of properties and alarms were provided as required to the occupants. Gas tightness tests identified leaks in three installations. Where installations are gas tight then analysis has shown that no additional leaks would occur with hydrogen blended gas. There were no issues identified with the combustion performance of those appliances that were operating correctly and results were in line with those obtained in the laboratory testing programme.<br/>The findings of the Appliance and Installation testing program have been used to define the input values into the HyDeploy quantified risk assessment (QRA) where Keele University specific operation is different to GB as a whole or where the findings show the addition of hydrogen will change the risk profile.<br/>Click on supplements to see the other documents from this report
Hy4Heat Hydrogen Colourant Report
May 2021
Publication
As part of Work Package 2 (WP2) of the Hy4Heat programme DNV produced a substantive report regarding colourant within a potential hydrogen gas network within the UK. Considering the advances within the hydrogen industry over the past year this covering document provides an update to the results as presented by DNV based on current industry progress and research.
The Hydrogen Colourant report was a study to determine if there is a requirement for adding a colourant to hydrogen to ensure that safe burning and user acceptance is achieved and to investigate the optimum solution if a colourant is required. The recommendation is that adding colourant to a future hydrogen gas network for use within buildings is not necessary if engineering measures are put in place to enable safe appliance operation."
- Advancements have been made in the understanding of key topics:
- Flame visibility and supervision
- Health and safety of colourant additives
- Production of Nitrogen Oxides (NOx)
- Likelihood of ignition from domestic electrical installations
- Nature of gas escapes
The Hydrogen Colourant report was a study to determine if there is a requirement for adding a colourant to hydrogen to ensure that safe burning and user acceptance is achieved and to investigate the optimum solution if a colourant is required. The recommendation is that adding colourant to a future hydrogen gas network for use within buildings is not necessary if engineering measures are put in place to enable safe appliance operation."
Flexibility in Great Britain
May 2021
Publication
The Flexibility in Great Britain project analysed the system-level value of deploying flexibility across the heat transport industry and power sectors in Great Britain to provide a robust evidence-base on the role and value of flexibility in a net zero system.
Overview
Findings from this groundbreaking analysis of the future net zero energy system in Great Britain are expected to have profound implications for policymakers households and the wider energy sector across Great Britain.
Key findings include:
Read the Full Report here on the Carbon Trust Website
View the interactive analysis here at the Carbon Trust Website
Watch an accompanying video here at the Carbon Trust Youtube channel
Overview
Findings from this groundbreaking analysis of the future net zero energy system in Great Britain are expected to have profound implications for policymakers households and the wider energy sector across Great Britain.
Key findings include:
- Embedding greater flexibility across the entire energy system will reduce the cost of achieving net zero for all consumers while assuring energy security.
- Investing in flexibility is a no-regrets decision as it has the potential to deliver material net savings of up to £16.7bn per annum across all scenarios analysed in 2050.
- A more flexible system will accelerate the benefits of decarbonisation supported by decentralisation and digitalisation.
- To maximise the benefits of flexibility households and businesses should play an active role in the development and operation of the country’s future energy system as energy use for transport heat and appliances becomes more integrated.
- Policymakers should preserve existing flexibility options and act now to maximise future flexibility such as by building it into ‘smart’ appliances or building standards.
Read the Full Report here on the Carbon Trust Website
View the interactive analysis here at the Carbon Trust Website
Watch an accompanying video here at the Carbon Trust Youtube channel
The Road to Zero: Next Steps Towards Cleaner Road Transport and Delivering our Industrial Strategy
Jul 2018
Publication
Our mission is to put the UK at the forefront of the design and manufacturing of zero emission vehicles and for all new cars and vans to be effectively zero emission by 2040. As set out in the NO2 plan we will end the sale of new conventional petrol and diesel cars and vans by 2040. By then we expect the majority of new cars and vans sold to be 100% zero emission and all new cars and vans to have significant zero emission capability. By 2050 we want almost every car and van to be zero emission. We want to see at least 50% and as many as 70% of new car sales and up to 40% of new van sales being ultra low emission by 2030.<br/>We expect this transition to be industry and consumer led supported in the coming years by the measures set out in this strategy. We will review progress towards our ambitions by 2025. Against a rapidly evolving international context we will seek to maintain the UK’s leadership position and meet our ambitions and will consider what interventions are required if not enough progress is being made.
Blind-prediction: Estimating the Consequences of Vented Hydrogen Deflagrations for Homogeneous Mixtures in a 20-foot ISO Container
Sep 2017
Publication
Trygve Skjold,
Helene Hisken,
Sunil Lakshmipathy,
Gordon Atanga,
Marco Carcassi,
Martino Schiavetti,
James R. Stewart,
A. Newton,
James R. Hoyes,
Ilias C. Tolias,
Alexandros G. Venetsanos,
Olav Roald Hansen,
J. Geng,
Asmund Huser,
Sjur Helland,
Romain Jambut,
Ke Ren,
Alexei Kotchourko,
Thomas Jordan,
Jérome Daubech,
Guillaume Lecocq,
Arve Grønsund Hanssen,
Chenthil Kumar,
Laurent Krumenacker,
Simon Jallais,
D. Miller and
Carl Regis Bauwens
This paper summarises the results from a blind-prediction study for models developed for estimating the consequences of vented hydrogen deflagrations. The work is part of the project Improving hydrogen safety for energy applications through pre-normative research on vented deflagrations (HySEA). The scenarios selected for the blind-prediction entailed vented explosions with homogeneous hydrogen-air mixtures in a 20-foot ISO container. The test program included two configurations and six experiments i.e. three repeated tests for each scenario. The comparison between experimental results and model predictions reveals reasonable agreement for some of the models and significant discrepancies for others. It is foreseen that the first blind-prediction study in the HySEA project will motivate developers to improve their models and to update guidelines for users of the models.
Hydrogen Embrittlement: Future Directions—Discussion
Jun 2017
Publication
The final session of the meeting consisted of a discussion panel to propose future directions for research in the field of hydrogen embrittlement and the potential impact of this research on public policy.
This article is a transcription of the recorded discussion of ‘Hydrogen Embrittlement: Future Directions’ at the Royal Society Scientific Discussion Meeting Challenges of Hydrogen and Metals Jan 16th–18th 2017. The text is approved by the contributors. H.L. transcribed the session and drafted the manuscript. Y.C. assisted in the preparation of the manuscript.
Link to document download on Royal Society Website
This article is a transcription of the recorded discussion of ‘Hydrogen Embrittlement: Future Directions’ at the Royal Society Scientific Discussion Meeting Challenges of Hydrogen and Metals Jan 16th–18th 2017. The text is approved by the contributors. H.L. transcribed the session and drafted the manuscript. Y.C. assisted in the preparation of the manuscript.
Link to document download on Royal Society Website
Hydrogen adsorption on transition metal carbides
Jan 2019
Publication
Transition metal carbides are a class of materials widely known for both their interesting physical properties and catalytic activity. In this work we have used plane-wave DFT methods to study the interaction with increasing amounts of molecular hydrogen on the low-index surfaces of four major carbides – TiC VC ZrC and NbC. Adsorption is found to be generally exothermic and occurs predominantly on the surface carbon atoms. We identify trends over the carbides and their surfaces for the energetics of the adsorption as a function of their electronic and geometrical characteristics. An ab initio thermodynamics formalism is used to study the properties of the slabs as the hydrogen coverage is increased.
Sequential Combustion in Steam Methane Reformers for Hydrogen and Power Production With CCUS in Decarbonized Industrial Clusters
Aug 2020
Publication
In future energy supply systems hydrogen and electricity may be generated in decarbonized industrial clusters using a common infrastructure for natural gas supply electricity grid and transport and geological storage of CO2. The novel contribution of this article consists of using sequential combustion in a steam methane reforming (SMR) hydrogen plant to allow for capital and operating cost reduction by using a single post-combustion carbon capture system for both the hydrogen process and the combined cycle gas turbine (CCGT) power plant plus appropriate integration for this new equipment combination. The concept would be widely applied to any post-combustion CO2 capture process. A newly developed rigorous gPROMs model of two hydrogen production technologies covering a wide range of hydrogen production capacities thermodynamically integrated with commercially available gas turbine engines quantifies the step change in thermal efficiency and hydrogen production efficiency. It includes a generic post-combustion capture technology – a conventional 30%wt MEA process - to quantify the reduction in size of CO2 absorber columns the most capital intensive part of solvent-based capture systems. For a conventional SMR located downstream of an H-class gas turbine engine followed by a three-pressure level HRSG and a capture plant with two absorbers the integrated system produces ca. 696400 Nm3/h of H2 with a net power output of 651 MWe at a net thermal efficiency of 38.9%LHV. This corresponds to 34 MWe of additional power increasing efficiency by 4.9% points and makes one absorber redundant compared to the equivalent non-integrated system producing the same volume of H2. For a dedicated gas heated reformer (GHR) located downstream of an aeroderivative gas turbine engine followed by a two-pressure level HRSG and a capture plant with one absorber the integrated system produces ca. 80750 Nm3/h of H2 with a net power output of 73 MWe and a net thermal efficiency of 54.7%LHV. This corresponds to 13 MWe of additional power output increasing efficiency by 13.5% points and also makes one absorber redundant. The article also presents new insights for the design and operation of reformers integrated with gas turbines and with CO2 capture.
Towards Fire Test Protocol for Hydrogen Storage Tanks
Sep 2019
Publication
The reproducibility of fire test protocol in the UN Global Technical Regulation on Hydrogen and Fuel Cell Vehicles (GTR#13) is not satisfactory. Results differ from laboratory to laboratory and even at the same laboratory when fires of different heat release (HRR) rate are applied. This is of special importance for fire test of tank without thermally activated pressure relief devise (TPRD) the test requested by firemen. Previously the authors demonstrated a strong dependence of tank fire resistance rating (FRR) i.e. time from fire test initiation to moment of tank rupture on the HRR in a fire. The HRR for complete combustion at the open is a product of heat of combustion and flow rate of a fuel i.e. easy to control in test parameter. It correlates with heat flux to the tank from a fire – the higher HRR the higher heat flux. The control of only temperature underneath a tank in fire test as per the current fire test protocol of UN GTR#13 without controlling HRR of fire source is a reason of poor fire test reproducibility. Indeed a candle flame can easily provide a required by the protocol temperature in points of control but such test arrangements could never lead to tank rupture due to fast heat dissipation from such tiny fire source i.e. insufficient and very localised heat flux to the tank. Fire science requires knowledge of heat flux along with the temperature to characterise fire dynamics. In our study published in 2018 the HRR is suggested as an easy to control parameter to ensure the fire test reproducibility. This study demonstrates that the use of specific heat release rate HRR/A i.e. HRR in a fire source divided by the area of the burner projection A enables testing laboratories to change freely a burner size depending on a tank size without affecting fire test reproducibility. The invariance of FRR at its minimum level with increase of HRR/A above 1 MW/m2 has been discovered first numerically and then confirmed by experiments with different burners and fuels. The validation of computational fluid dynamics (CFD) model against the fire test data is presented. The numerical experiments with localised fires under a vehicle with different HRR/A are performed to understand the necessity of the localised fire test protocol. The understanding of fire test underlying physics will underpin the development of protocol providing test reproducibility.
The World’s Energy Agenda & Its Evolution: Issues Monitor 2019
Feb 2019
Publication
In an era where the energy landscape is in constant transition energy leaders must pay attention to many different signals of change and distinguish key issues from the noise. The Issues Monitor identifies shifting patterns of connected issues which are shaping energy transitions.<br/>This report takes a focused look at the issues facing the energy transition in Europe using data collected by surveying over 40 leaders and shapers representing the European Transmission and Distributors Operators. This Issues Monitor outlines clear Action Priorities and Critical Uncertainties for different stakeholder groups mapping them out intuitively to promote a shared understanding of the issues. These maps also help identifiy regional variations understand differing areas of concern as well as follow the evolution of specific technology trends.<br/>Produced in partnership with ENTSO-E and E.DSO.
Analysing Long-term Opportunities for Offshore Energy System Integration in the Danish North Sea
Aug 2021
Publication
This study analyzes future synergies between the Oil and Gas (O&G) and renewables sectors in a Danish context and explores how exploiting these synergies could lead to economic and environmental benefits. We review and highlight relevant technologies and related projects and synthesize the state of the art in offshore energy system integration. All of these preliminary results serve as input data for a holistic energy system analysis in the Balmorel modeling framework. With a timeframe out to 2050 and model scope including all North Sea neighbouring countries this analysis explores a total of nine future scenarios for the North Sea energy system. The main results include an immediate electrification of all operational Danish platforms by linking them to the shore and/or a planned Danish energy island. These measures result in cost and CO2 emissions savings compared to a BAU scenario of 72% and 85% respectively. When these platforms cease production this is followed by the repurposing of the platforms into hydrogen generators with up to 3.6 GW of electrolysers and the development of up to 5.8 GW of floating wind. The generated hydrogen is assumed to power the future transport sector and is delivered to shore in existing and/or new purpose-built pipelines. The contribution of the O&G sector to this hydrogen production amounts to around 19 TWh which represents about 2% of total European hydrogen demand for transport in 2050. The levelized costs (LCOE) of producing this hydrogen in 2050 are around 4 €2020/kg H2 which is around twice those expected in similar studies. But this does not account for energy policies that may incentivize green hydrogen production in the future which would serve to reduce this LCOE to a level that is more competitive with other sources.
Experimental and Numerical Study of Low Temperature Methane Steam Reforming for Hydrogen Production
Dec 2017
Publication
Low temperature methane steam reforming for hydrogen production using experimental developed Ni/Al2O3 catalysts is studied both experimentally and numerically. The catalytic activity measurements were performed at a temperature range of 500–700 ◦C with steam to carbon ratio (S/C) of 2 and 3 under atmospheric pressure conditions. A mathematical analysis to evaluate the reaction feasibility at all different conditions that have been applied by using chemical equilibrium with applications (CEA) software and in addition a mathematical model focused on the kinetics and the thermodynamics of the reforming reaction is introduced and applied using a commercial finite element analysis software (COMSOL Multiphysics 5.0). The experimental results were employed to validate the extracted simulation data based on the yields of the produced H2 CO2 and CO at different temperatures. A maximum hydrogen yield of 2.7 mol/mol-CH4 is achieved at 700 ◦C and S/C of 2 and 3. The stability of the 10%Ni/Al2O3 catalyst shows that the catalyst is prone to deactivation as supported by Thermogravimetric Analysis TGA results.
Characterising Hydrogen Induced Cracking of Alloy 625+ Using Correlative SEM - EDX and NanoSIMS
Dec 2020
Publication
Hydrogen induced cracking behaviour of O&G nickel alloy 625+ (UNS N07716) was investigated. Deuterium was introduced electrochemically into samples by cathodic polarisation (3.5 wt.% NaCl.D2O) under different mechanical conditions. Subsequently deuterium distributions were mapped using NanoSIMS. Deuterium was used as an isotopic tracer instead of hydrogen to avoid the detection of hydrogen artefacts. Complimentary image analysis using scanning electron microscopy (SEM) and low voltage energy dispersive X-ray (EDX) allowed the identification of microstructural features corresponding to deuterium enrichments. The results provided experimental evidence of enrichments at dislocation slip bands (DSB) twin boundary and grain boundary features that include σ precipitates.
Bioanode as a Limiting Factor to Biocathode Performance in Microbial Electrolysis Cells
Mar 2017
Publication
The bioanode is important for a microbial electrolysis cell (MEC) and its robustness to maintain its catalytic activity affects the performance of the whole system. Bioanodes enriched at a potential of +0.2 V (vs. standard hydrogen electrode) were able to sustain their oxidation activity when the anode potential was varied from -0.3 up to +1.0 V. Chronoamperometric test revealed that the bioanode produced peak current density of 0.36 A/m2 and 0.37 A/m2 at applied potential 0 and +0.6 V respectively. Meanwhile hydrogen production at the biocathode was proportional to the applied potential in the range from -0.5 to -1.0 V. The highest production rate was 7.4 L H2/(m2 cathode area)/day at -1.0 V cathode potential. A limited current output at the bioanode could halt the biocathode capability to generate hydrogen. Therefore maximum applied potential that can be applied to the biocathode was calculated as -0.84 V without overloading the bioanode.
Heat in Buildings Strategy: Achieving Net Zero Emissions in Scotland's Buildings
Oct 2021
Publication
Sets out our vision for the future of heat in buildings and the actions we are taking in the buildings sector to deliver our climate change commitments maximise economic opportunities and ensure a just transition including helping address fuel poverty.
Blue Hydrogen as an Enabler of Green Hydrogen: The Case of Germany
Jun 2020
Publication
In Germany decarbonization of the electricity sector by fostering renewables and now phasing out coal-fired power is on track to reach the 2050 de-carbonisation targets while decarbonising non-electric energy consumption is proving to be more difficult. The present discussion of a national hydrogen strategy has run into strong political opposition against carbon sequestration as a necessary element in the use of decarbonized natural gas (blue hydrogen) and is aiming at the use of green hydrogen only (from renewable electricity and electrolysis). This paper shows that as long as the power sector is not decarbonized – not likely before 2040 – only marginal volumes of renewable electricity will be available to produce green hydrogen. To meet the decarbonization target by 2050 blue hydrogen has to fill that gap paving the way for green hydrogen at a later stage. The paper discusses the elements needed for an expedient development of blue hydrogen. It also points at the need and instruments to decarbonize core industries like the steel and chemical industry so that they can become future proof in competition with the US which is more advanced with a decarbonization strategy for its industry based on carbon sequestration.
The Future Role of Gas in Transport
Mar 2021
Publication
This is a Network Innovation Allowance funded project overseen by a steering group comprising the UK and Ireland gas network operators (Cadent Gas Networks Ireland National Grid Northern Gas Networks SGN Wales and West). The project follows on from previous studies that modelled the role of green gases in decarbonising the GB economy. The role of this study is to understand the transition from the GB economy today to a decarbonised economy in 2050 focusing on how the transition is achieved and the competing and complementary nature of different low and zero emission fuels and technologies over time.
While the project covers the whole economy it focuses on transport especially trucks as an early adopter of green gases and as a key enabler of the transition. The study and resulting report are aimed at the gas industry and government and tries to build a green gas decarbonisation narrative supported by a wide range of stakeholders in order clarify the path ahead and thereby focus future efforts on delivering decarbonisation through green gases as quickly as possible.
The objectives of the study are:
Green gases
This report discusses the future role of ‘green gases’ which are biomethane and hydrogen produced from low- and zero-carbon sources each produced via two main methods:
Biomethane from Anaerobic Digestion (AD): A mature technology for turning biological material into a non-fossil form of natural gas (methane). AD plants produce biogas which must then be upgraded to biomethane.
Biomethane from Bio-Substitute Natural Gas (Bio-SNG): This technology is at an earlier stage of development than AD but has the potential to unlock other feedstocks for biomethane production such as waste wood and residual household waste.
Blue Hydrogen: Hydrogen from reformation of natural gas which produces hydrogen and carbon monoxide. 90-95% of the carbon is captured and stored making this a low-carbon form of hydrogen.
Green Hydrogen: Water is split into hydrogen and oxygen via electrolysis using electricity generated by renewables. No carbon emissions are produced so this is zero-carbon hydrogen."
While the project covers the whole economy it focuses on transport especially trucks as an early adopter of green gases and as a key enabler of the transition. The study and resulting report are aimed at the gas industry and government and tries to build a green gas decarbonisation narrative supported by a wide range of stakeholders in order clarify the path ahead and thereby focus future efforts on delivering decarbonisation through green gases as quickly as possible.
The objectives of the study are:
- Analyse the complete supply chain production distribution and use of electricity biomethane bio-SNG and hydrogen to understand the role of each fuel and the timeline for scaling up of their use.
- Develop a narrative based on these findings to show how the use of these fuels scales up over time and how they compete and complement one another.
Green gases
This report discusses the future role of ‘green gases’ which are biomethane and hydrogen produced from low- and zero-carbon sources each produced via two main methods:
Biomethane from Anaerobic Digestion (AD): A mature technology for turning biological material into a non-fossil form of natural gas (methane). AD plants produce biogas which must then be upgraded to biomethane.
Biomethane from Bio-Substitute Natural Gas (Bio-SNG): This technology is at an earlier stage of development than AD but has the potential to unlock other feedstocks for biomethane production such as waste wood and residual household waste.
Blue Hydrogen: Hydrogen from reformation of natural gas which produces hydrogen and carbon monoxide. 90-95% of the carbon is captured and stored making this a low-carbon form of hydrogen.
Green Hydrogen: Water is split into hydrogen and oxygen via electrolysis using electricity generated by renewables. No carbon emissions are produced so this is zero-carbon hydrogen."
Disrupting the UK energy system: Causes, Impacts and Policy Implications
Jun 2019
Publication
With government legislating for net-zero by 2050 what does this mean for UK energy markets and business models?<br/>Getting to net-zero will require economy-wide changes that extend well beyond the energy system leading to rapid and unprecedented change in all aspects of society.<br/>This report shines a light on the level of disruption that could be required by some sectors to meet net-zero targets. With many businesses making strong commitments to a net-zero carbon future the report highlights the stark future facing specific sectors. Some will need to make fundamental change to their business models and operating practices whilst others could be required to phase out core assets. Government may need to play a role in purposefully disrupting specific sectors to ensure the move away from high carbon business models facilitating the transition a zero-carbon economy. Sector specific impactsThe in-depth analysis presented in ‘Disrupting the UK energy systems: causes impacts and policy implications’ focuses on four key areas of the economy highlighting how they may need to change to remain competitive and meet future carbon targets.<br/>Heat: All approaches for heat decarbonisation are potentially disruptive with policymakers favouring those that are less disruptive to consumers. Since it is unlikely that rapid deployment of low carbon heating will be driven by consumers or the energy industry significant policy and governance interventions will be needed to drive the sustainable heat transformation.<br/>Transport: Following the ‘Road to Zero’ pathway for road transport is unlikely to be disruptive but it is not enough to meet our climate change targets. The stricter targets for phasing out conventional vehicles that will be required will lead to some disruption. Vehicle manufacturers the maintenance and repair sector and the Treasury may all feel the strain.<br/>Electricity: Strategies of the Big 6 energy companies have changed considerably in recent years with varying degrees of disruption to their traditional business model. It remains to be seen whether they will be able to continue to adapt to rapid change – or be overtaken by new entrants.<br/>Construction: To deliver low-carbon building performance will require disruptive changes to the way the construction sector operates. With new-build accounting for less than 1% of the total stock major reductions in energy demand will need to come through retrofit of existing buildings.<br/>The report identifies how policy makers plan for disruptions to existing systems. With the right tools and with a flexible and adaptive approach to policy implementation decision makers can better respond to unexpected consequences and ensure delivery of key policy objectives.
Environmental Audit Committee Inquiry into Hydrogen
Jun 2020
Publication
The Hydrogen Taskforce welcomes the opportunity to submit evidence to the Environmental Audit Committee’s inquiry into Hydrogen. It is the Taskforce’s view that:
You can download the whole document from the Hydrogen Taskforce website here
- Due to its various applications hydrogen is critical for the UK to reach net zero by 2050;
- The UK holds world-class advantages in hydrogen production distribution and application; and
- Other economies are moving ahead in the development of this sector and the UK must respond.
- Development of a cross departmental UK Hydrogen Strategy within UK Government;
- Commit £1bn of capex funding over the next spending review period to hydrogen production storage and distribution projects;
- Develop a financial support scheme for the production of hydrogen in blending industry power and transport;
- Amend Gas Safety Management Regulations (GSMR) to enable hydrogen blending and take the next steps towards 100% hydrogen heating through supporting public trials and mandating 100% hydrogen-ready boilers by 2025; and
- Commit to the support of 100 Hydrogen Refuelling Stations (HRS) by 2025 to support the roll-out of hydrogen transport.
You can download the whole document from the Hydrogen Taskforce website here
Results of the Pre-normative Research Project PRESLHY for the Safe Use of Liquid Hydrogen
Sep 2021
Publication
Liquid hydrogen (LH2) compared to compressed gaseous hydrogen offers advantages for large-scale transport and storage of hydrogen with higher densities. Although the gas industry has good experience with LH2 only little experience is available for the new applications of LH2 as an energy carrier. Therefore the European FCH JU funded project PRESLHY conducted pre-normative research for the safe use of cryogenic LH2 in non-industrial settings. The central research consisted of a broad experimental program combined with analytical work modelling and simulations belonging to the three key phenomena of the accident chain: release and mixing ignition and combustion. The presented results improve the general understanding of the behavior of LH2 in accidents and provide some design guidelines and engineering tools for safer use of LH2. Recommendations for improvement of current international standards are derived.
Disruptive and Uncertain: Policy Makers’ Perceptions on UK Heat Decarbonisation
May 2020
Publication
<br/>The decarbonisation of heating represents a transformative challenge for many countries. The UK’s net-zero greenhouse gas emissions target requires the removal of fossil fuel combustion from heating in just three decades. A greater understanding of policy processes linked to system transformations is expected to be of value for understanding systemic change; how policy makers perceive policy issues can impact on policy change with knock-on effects for energy system change. This article builds on the literature considering policy maker perceptions and focuses on the issue of UK heat policy. Using qualitative analysis we show that policy makers perceive heat decarbonisation as disruptive technological pathways are seen as deeply uncertain and heat decarbonisation appears to offer policy makers little ‘up-side’. Perceptions are bounded by uncertainty affected by concerns over negative impacts influenced by external influences and relate to ideas of continuity. Further research and evidence on optimal heat decarbonisation and an adaptive approach to governance could support policy makers to deliver policy commensurate with heat decarbonisation. However even with reduced uncertainty and more flexible governance the perceptions of disruption to consumers mean that transformative heat policy may remain unpopular for policy makers potentially putting greenhouse mitigation targets at risk of being missed.
Shielded Hydrogen Passivation – A Novel Method for Introducing Hydrogen into Silicon
Sep 2017
Publication
This paper reports a new approach for exposing materials including solar cell structures to atomic hydrogen. This method is dubbed Shielded Hydrogen Passivation (SHP) and has a number of unique features offering high levels of atomic hydrogen at low temperature whilst inducing no damage. SHP uses a thin metallic layer in this work palladium between a hydrogen generating plasma and the sample which shields the silicon sample from damaging UV and energetic ions while releasing low energy neutral atomic hydrogen onto the sample. In this paper the importance of the preparation of the metallic shield either to remove a native oxide or to contaminate intentionally the surface are shown to be potential methods for increasing the amount of atomic hydrogen released. Excellent damage free surface passivation of thin oxides is observed by combining SHP and corona discharge obtaining minority carrier lifetimes of 2.2 ms and J0 values below 5.47 fA/cm2. This opens up a number of exciting opportunities for the passivation of advanced cell architectures such as passivated contacts and heterojunctions.
Hydrogen Taskforce: The Role of Hydrogen in Delivering Net Zero
Feb 2020
Publication
Hydrogen is essential to the UK meeting its net zero emissions target. We must act now to scale hydrogen solutions and achieve cost effective deep decarbonisation. With the support of Government UK industry is ready to deliver.
The potential to deploy hydrogen at scale as an energy vector has risen rapidly in the political and industrial consciousness in recent years as the benefits and opportunities have become better understood. Early stage projects across the globe have demonstrated the potential of hydrogen to deliver deep decarbonisation reduce the cost of renewable power and balance energy supply and demand. Governments and major industrial and commercial organisations across the world have set out their ambition to deploy hydrogen technologies at scale. This has created a growing confidence that hydrogen will present both a viable decarbonisation pathway and a global market opportunity. Hydrogen will have an important role to play in meeting the global climate goals set out in the Paris Climate Agreement and due to be discussed later this year at COP26.
The UK’s commitment to a net zero greenhouse gas emissions target has sharpened the conversation around hydrogen. Most experts agree that net zero by 2050 cannot be achieved through electrification alone and as such there is a need for a clean molecule to complement the electron. Hydrogen has properties which lend themselves to the decarbonisation of parts of the energy system which are less well suited to electrification such as industrial processes heating and heavy and highly utilised vehicles. Hydrogen solutions can be scaled meaning that the contribution of hydrogen to meeting net zero could be substantial.
A steady start has been made to exploring the hydrogen opportunity. Partnerships between policymakers and industry exist on several projects which are spread out right across the country from London to many industrial areas in the north east and north west. Existing projects include the early stage roll out of transport infrastructure and vehicles feasibility studies focused on large scale hydrogen production technologies projects exploring the decarbonisation of the gas grid and the development of hydrogen appliances.
The Government recently announced new funding for hydrogen through the Hydrogen Supply Programme and Industrial Fuel Switching Competition. These programmes are excellent examples of collaboration between Government and industry in driving UK leadership in hydrogen and developing solutions that will be critical for meeting net zero.
If the UK is going to meet net zero and capitalise on the economic growth opportunities presented by domestic and global markets for hydrogen solutions and expertise it is critical that the 2020s deliver a step change in hydrogen activity building on the unique strengths and expertise developed during early stage technology development.
The Hydrogen Taskforce brings together leading companies pushing hydrogen into the mainstream in the UK to offer a shared view of the opportunity and a collective position on the next steps that must be taken to ensure that the UK capitalises on this opportunity. There are questions to be answered and challenges that must be overcome as hydrogen technologies develop yet by focusing on what can be done today the benefits of hydrogen can be immediately realised whilst industry expertise and knowledge is built.
You can download the whole document from the Hydrogen Taskforce website here
The potential to deploy hydrogen at scale as an energy vector has risen rapidly in the political and industrial consciousness in recent years as the benefits and opportunities have become better understood. Early stage projects across the globe have demonstrated the potential of hydrogen to deliver deep decarbonisation reduce the cost of renewable power and balance energy supply and demand. Governments and major industrial and commercial organisations across the world have set out their ambition to deploy hydrogen technologies at scale. This has created a growing confidence that hydrogen will present both a viable decarbonisation pathway and a global market opportunity. Hydrogen will have an important role to play in meeting the global climate goals set out in the Paris Climate Agreement and due to be discussed later this year at COP26.
The UK’s commitment to a net zero greenhouse gas emissions target has sharpened the conversation around hydrogen. Most experts agree that net zero by 2050 cannot be achieved through electrification alone and as such there is a need for a clean molecule to complement the electron. Hydrogen has properties which lend themselves to the decarbonisation of parts of the energy system which are less well suited to electrification such as industrial processes heating and heavy and highly utilised vehicles. Hydrogen solutions can be scaled meaning that the contribution of hydrogen to meeting net zero could be substantial.
A steady start has been made to exploring the hydrogen opportunity. Partnerships between policymakers and industry exist on several projects which are spread out right across the country from London to many industrial areas in the north east and north west. Existing projects include the early stage roll out of transport infrastructure and vehicles feasibility studies focused on large scale hydrogen production technologies projects exploring the decarbonisation of the gas grid and the development of hydrogen appliances.
The Government recently announced new funding for hydrogen through the Hydrogen Supply Programme and Industrial Fuel Switching Competition. These programmes are excellent examples of collaboration between Government and industry in driving UK leadership in hydrogen and developing solutions that will be critical for meeting net zero.
If the UK is going to meet net zero and capitalise on the economic growth opportunities presented by domestic and global markets for hydrogen solutions and expertise it is critical that the 2020s deliver a step change in hydrogen activity building on the unique strengths and expertise developed during early stage technology development.
The Hydrogen Taskforce brings together leading companies pushing hydrogen into the mainstream in the UK to offer a shared view of the opportunity and a collective position on the next steps that must be taken to ensure that the UK capitalises on this opportunity. There are questions to be answered and challenges that must be overcome as hydrogen technologies develop yet by focusing on what can be done today the benefits of hydrogen can be immediately realised whilst industry expertise and knowledge is built.
You can download the whole document from the Hydrogen Taskforce website here
A Manganese Hydride Molecular Sieve for Practical Hydrogen Storage Under Ambient Conditions
Dec 2018
Publication
A viable hydrogen economy has thus far been hampered by the lack of an inexpensive and convenient hydrogen storage solution meeting all requirements especially in the areas of long hauls and delivery infrastructure. Current approaches require high pressure and/or complex heat management systems to achieve acceptable storage densities. Herein we present a manganese hydride molecular sieve that can be readily synthesized from inexpensive precursors and demonstrates a reversible excess adsorption performance of 10.5 wt% and 197 kgH2 m-3 at 120 bar at ambient temperature with no loss of activity after 54 cycles. Inelastic neutron scattering and computational studies confirm Kubas binding as the principal mechanism. The thermodynamically neutral adsorption process allows for a simple system without the need for heat management using moderate pressure as a toggle. A storage material with these properties will allow the DOE system targets for storage and delivery to be achieved providing a practical alternative to incumbents such as 700 bar systems which generally provide volumetric storage values of 40 kgH2 m-3 or less while retaining advantages over batteries such as fill time and energy density. Reasonable estimates for production costs and loss of performance due to system implementation project total energy storage costs roughly 5 times cheaper than those for 700 bar tanks potentially opening doors for increased adoption of hydrogen as an energy vector.
Spin Pinning Effect to Reconstructed Oxyhydroxide Layer on Ferromagnetic Oxides for Enhanced Water Oxidation
Jun 2021
Publication
Producing hydrogen by water electrolysis suffers from the kinetic barriers in the oxygen evolution reaction (OER) that limits the overall efficiency. With spin-dependent kinetics in OER to manipulate the spin ordering of ferromagnetic OER catalysts (e.g. by magnetization) can reduce the kinetic barrier. However most active OER catalysts are not ferromagnetic which makes the spin manipulation challenging. In this work we report a strategy with spin pinning effect to make the spins in paramagnetic oxyhydroxides more aligned for higher intrinsic OER activity. The spin pinning effect is established in oxideFM/oxyhydroxide interface which is realized by a controlled surface reconstruction of ferromagnetic oxides. Under spin pinning simple magnetization further increases the spin alignment and thus the OER activity which validates the spin effect in rate-limiting OER step. The spin polarization in OER highly relies on oxyl radicals (O∙) created by 1st dehydrogenation to reduce the barrier for subsequent O-O coupling.
Gas Goes Green: Britain's Hydrogen Network Plan Report
Jan 2021
Publication
Britain stands on the cusp of a world-leading hydrogen revolution and one which we are almost uniquely positioned to take advantage of. With an extensive world-leading gas grid huge amounts of offshore wind resource and liquid energy markets there are few other places as well positioned as the UK to lead the international race to build a hydrogen economy. Published as part of Energy Networks Association’s Gas Goes Green programme Britain’s Hydrogen Network Plan will play a vital role in delivering the UK’s ambitions for hydrogen as set out in the Prime Minister’s Ten Point Plan For A Green Industrial Revolution.<br/>This Plan sets out how Britain’s gas network companies will enable 100% hydrogen to be transported for use in different sectors of the UK economy. It also identifies the wider actions needed to provide hydrogen production and storage showing how transitioning the gas networks to hydrogen will allow hydrogen to play a full role in achieving net zero in the hard to decarbonise sectors such as industry heavy transport and domestic heating saving an estimated 40 million tonnes of CO2 emissions every year. All five of Britain’s gas network companies responsible for owning and operating £24bn of critical national energy infrastructure are committing through this Plan to delivering this work. It forms a key part of their ambition to building the world’s first zero carbon gas grid here in the UK.<br/>Britain’s Hydrogen Network Plan is founded on four tenets that will underpin the role of Britain’s gas network infrastructure in a hydrogen economy. These tenets reflect the breadth and scale of the impact that the transformation of our gas networks will have. They will guide how gas network companies ensure people’s safety in a fast moving and changing energy system. They reflect how the companies will maintain security of supply to our homes and businesses as we move away from the natural gas that has been the bedrock of our energy system for half a century. They will support the public’s ability to choose the right technology so households and businesses can choose the low carbon technologies that are best suited to their needs. And they will deliver jobs and investment so the transition of our gas networks has a lasting and enduring economic impact in communities across the country.<br/>As we look to the future the exciting role that hydrogen has to play in delivering a net zero economy is becoming increasingly clear. We look forward to working closely with the customers we serve the Government and the wider energy industry to turn that ambition into reality.
HyDeploy Overview
May 2020
Publication
An overview of the HyDeploy project at Keele University where hydrogen is being blended with natural gas to demonstrate the feasibility of using hydrogen to heat our homes.
Just Transition Commission
Mar 2021
Publication
The Just Transition Commission started work in early 2019 with a remit to provide practical and affordable recommendations to Scottish Ministers. This report sets out their view of the key opportunities and challenges for Scotland and recommends practical steps to achieving a just transition<br/><br/>Climate action fairness and opportunity must go together. Taking action to tackle climate change must make Scotland a healthier more prosperous and more equal society whilst restoring its natural environment. We want a Scotland where wellbeing is at the heart of how we measure ourselves and our prosperity. We know that the scars from previous industrial transitions have remained raw for generations. We know that some more recent aspirations for green jobs have not delivered on all the benefits promised for Scottish workers and communities. We need rapid interventions to fully realise the potential (and mitigate the potential injustice) associated with the net-zero transition.
Optimal Operation of a Hydrogen Storage and Fuel Cell Coupled Integrated Energy System
Mar 2021
Publication
Integrated energy systems have become an area of interest as with growing energy demand globally means of producing sustainable energy from flexible sources is key to meet future energy demands while keeping carbon emissions low. Hydrogen is a potential solution for providing flexibility in the future energy mix as it does not emit harmful gases when used as an energy source. In this paper an integrated energy system including hydrogen as an energy vector and hydrogen storage is studied. The system is used to assess the behaviour of a hydrogen production and storage system under different renewable energy generation profiles. Two case studies are considered: a high renewable energy generation scenario and a low renewable energy generation scenario. These provide an understanding of how different levels of renewable penetration may affect the operation of an electrolyser and a fuel cell against an electricity import/export pricing regime. The mathematical model of the system under study is represented using the energy hub approach with system optimisation through linear programming conducted via MATLAB to minimise the total operational cost. The work undertaken showcases the unique interactions the fuel cell has with the hydrogen storage system in terms of minimising grid electricity import and exporting stored hydrogen as electricity back to the grid when export prices are competitive.
HyDeploy Report: Quantitative Risk Assessment of the Field Trial of Hydrogen Injection into the Keele University Gas Distribution System
Oct 2018
Publication
A consortium comprising Cadent Northern Gas Networks Keele University Health and Safety Laboratory ITM Power and Progressive Energy is undertaking the research project HyDeploy. The project funded under the UK Network Innovation Competition scheme aims to demonstrate that natural gas containing levels of hydrogen beyond the upper limit set out in Schedule 3 of in the Gas Safety (Management) Regulations (GSMR) can be distributed and utilised safely and efficiently in a section of the UK distribution network. It will conclude with a field trial in which hydrogen will be injected into part of a private gas distribution system owned and operated by Keele University. Dave Lander Consulting Limited and Kiwa Ltd are providing technical support to the HyDeploy project and this report presents the results of Quantified Risk Assessment (QRA) for the proposed field trial. The QRA is intended to support an application by Keele University for exemption from the legal requirement to only convey gas that is compliant with the requirements of Schedule 3 of the GSMR. The QRA is aimed at demonstrating that the field trial will not result in a material increase in risk to persons within Keele University affected by the proposed field trial.<br/>Check the supplements tab for the other documents from this report
New Paradigms in Hydrogen Explosion Modelling Using an Industrial CFD Code
Sep 2019
Publication
It is well-known that deflagration to detonation transition (DDT) may be a significant threat for hydrogen explosions. This paper presents a summary of the work carried out for the development of models in order to enable the industrial computational fluid dynamic (CFD) tool FLACS to provide indications about the possibility of a deflagration-to-detonation transition (DDT). The likelihood of DDT has been expressed in terms of spatial pressure gradients across the flame front. This parameter is able to visualize when the flame front captures the pressure front which is the case in situations when fast deflagrations transition to detonation. Reasonable agreement was obtained with experimental observations in terms of explosion pressures transition times and flame speeds for several practical geometries. The DDT model has also been extended to develop a more meaningful criterion for estimating the likelihood of DDT by comparison of the geometric dimensions with the detonation cell size. The conclusion from simulating these experiments is that the FLACS DPDX criterion seems robust and will generally predict the onset DDTs with reasonable precision including the exact location where DDT may happen. The standard version of FLACS can however not predict the consequences if there is DDT as only deflagration flames are modelled. Based on the methodology described above an approach for predicting detonation flames and explosion loads has been developed. The second part of the paper covers new paradigms associated with risk assessment of a hydrogen infrastructure such as a refueling station. In particular approaches involving one-to-one coupling between CFD and FEA modelling are summarized. The advantages of using such approaches are illustrated. This can have wide-ranging implications on the design of things like protection walls against hydrogen explosions.
Conceptual Propulsion System Design for a Hydrogen-powered Regional Train
Apr 2015
Publication
Many railway vehicles use diesel as their energy source but exhaust emissions and concerns about economical fuel supply demand alternatives. Railway electrification is not cost effective for some routes particularly low-traffic density regional lines. The journey of a regional diesel–electric train is simulated over the British route Birmingham Moor Street to Stratford-upon-Avon and return to establish a benchmark for the conceptual design of a hydrogen-powered and hydrogen-hybrid vehicle. A fuel cell power plant compressed hydrogen at 350 and 700 bar and metal-hydride storage are evaluated. All equipment required for the propulsion can be accommodated within the space of the original diesel– electric train while not compromising passenger-carrying capacity if 700 bar hydrogen tanks are employed. The hydrogen trains are designed to meet the benchmark journey time of 94 min and the operating range of a day without refuelling. An energy consumption reduction of 34% with the hydrogen-powered vehicle and a decrease of 55% with the hydrogen-hybrid train are achieved compared with the original diesel–electric. The well-to-wheel carbon dioxide emissions are lower for the conceptual trains: 55% decrease for the hydrogen-powered and 72% reduction for the hydrogen-hybrid assuming that the hydrogen is produced from natural gas.
A Comparison Study into Low Leak Rate Buoyant Gas Dispersion in a Small Fuel Cell Enclosure Using Plain and Louvre Vent Passive Ventilation Schemes
Sep 2017
Publication
The development of a ‘Hydrogen Economy’ will see hydrogen fuel cells used in transportation and the generation of power for buildings as part of a decentralised grid with low power units used in domestic and commercial environmental situations. Low power fuel cells will be housed in small protective enclosures which must be ventilated to prevent a build-up of hydrogen gas produced during normal fuel cell operation or a supply pipework leak. Hydrogen’s flammable range (4-75%) is a significant safety concern. With poor enclosure ventilation a low-level leak (below 10 lpm) could quickly create a flammable mixture with potential for an explosion. Mechanical ventilation is effective at managing enclosure hydrogen concentrations but drains fuel cell power and is vulnerable to failure. In many applications (e.g. low power and remote installation) this is undesirable and reliable passive ventilation systems are preferred. Passive ventilation depends upon buoyancy driven flow with the size and shape of ventilation openings critical for producing predictable flows and maintaining low buoyant gas concentrations. Environmentally installed units use louvre vents to protect the fuel cell but the performance of these vents compared to plain vertical vents is not clear. Comparison small enclosure tests of ‘same opening area’ louvre and plain vents with leak rates from 1 to 10 lpm were conducted. A displacement ventilation arrangement was installed on the test enclosure with upper and lower opposing openings. Helium gas was released from a 4mm nozzle at the base of the enclosure to simulate a hydrogen leak. The tests determined that louvre vents increased average enclosure hydrogen concentrations by approximately 10% across the leak range tested but regulated the flow. The test data was used in a SolidWorks CFD simulation model validation exercise. The model provided a good qualitative representation of the flow behaviour but under predicted average concentrations.
Hydrogen Embrittlement in Super Duplex Stainless Steels
Nov 2019
Publication
In super duplex stainless steels (SDSSs) both austenite and ferrite are susceptible to hydrogen embrittlement however there is a lack of understanding into the effect of hydrogen in each phase. In this study in neutron diffraction was applied on hydrogen-charged (H-charged) samples to investigate the hydrogen embrittlement behaviour in super duplex stainless steels. The result reveals that austenite maintains good plasticity during tensile testing whilst a loss of it is realised in ferrite. Fractography analysis reveals the diffusion of hydrogen induced a brittle-to-ductile transition from the sample surface towards the centre; hydrogen embrittlement vanishes as the specimen’s centre is approached while it is demonstrated to disappear first in austenite but not in ferrite. This transition can be predicted by applying a physics-based hydrogen embrittlement model which incorporates the effects of hydrogen concentration hydrogen diffusivity residual stress loading state and temperature. The present work demonstrates the dissimilar susceptibility of austenite and ferrite to hydrogen embrittlement providing a tool to describe it.
The Merit and the Context of Hydrogen Production from Water and Its Effect on Global CO2 Emission
Feb 2022
Publication
For a green economy to be possible in the near future hydrogen production from water is a sought-after alternative to fossil fuels. It is however important to put things into context with respect to global CO2 emission and the role of hydrogen in curbing it. The present world annual production of hydrogen is about 70 million metric tons of which almost 50% is used to make ammonia NH3 (that is mostly used for fertilizers) and about 15% is used for other chemicals [1]. The hydrogen produced worldwide is largely made by steam CH4 reforming (SMR) which is one of the most energy-intensive processes in the chemical industry [2]. It releases based on reaction stoichiometry 5.5 kg of CO2 per 1 kg of H2 (CH4+ 2 H2O → CO2 + 4 H2). When the process itself is taken into account in addition the production [3] becomes about 9 kg of CO2 per kg of H2 and this ratio can be as high as 12 [4]. This results in the production of about one billion tons/year of CO2. The world annual CO2 emission from fossil fuels is however much larger: it is about 36 billion tons of which roughly 25% is emitted while generating electricity and heat 20% due to transport activity and 20% from other industrial processes. Because of the link between global warming and CO2 emissions there is an increasing move towards finding alternative approaches for energy vectors and their applications.
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