United Kingdom

The assessment of appropriate operational procedures to govern the injection of a hydrogen/natural gas blend into Northern Gas Networks’ (NGN) Winlaton gas distribution network was a key requirement of the HyDeploy2 project. To perform this assessment the review was broken down into two areas procedures upstream of the emergency control valve (owned by NGN) and procedures downstream of the Emergency Control Valve (procedures which would be performed by Gas Safe registered individuals). Assessment of the upstream procedures was led by NGN (own and carry out all upstream procedures on NGN’s gas network) and assessment of the downstream procedures was led by Blue Flame Associates (an industry expert on downstream gas procedures).<br/>Methodologies were adopted to be able to highlight procedures that could potentially be used on the Winlaton trial network during the hydrogen blended gas injection period and if they were impacted by the changing of the gas within the network from natural gas to hydrogen blended gas. This method determined that for downstream gas procedures a total of 56 gas procedures required expert review resulting in 80 technical questions to be assessed and for the upstream gas procedures a total of 80 gas procedures required expert review resulting in 266 technical questions to be assessed.<br/>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. Any requirements to modify an existing procedure has been given in this report referencing the source as to where the detailed analysis for the change/no change recommendation has been given.<br/>The assessment took into account the associated experimental and research carried out as part of the HyDeploy and HyDeploy2 projects such as the assessment of gas characteristics materials impact appliance survey of assets on the Winlaton network and impact of hydrogen blended gas on gas detection equipment references to these studies have been given accordingly to associated impacted operational procedures.<br/>The conclusion of the assessment is that for upstream gas procedures 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 technical modification. For downstream domestic gas procedures all procedures applicable to a domestic gas installation were deemed to not be detrimentally affected by the introduction of a 20 mol% hydrogen blend.<br/>For upstream gas procedures an appropriate training package will be 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 Winlaton network during the hydrogen blend injection period. For downstream gas procedures the Gas Safe community have been fully engaged and informed about the trial.<br/>Click on the supplements tab to view the other documents from this report

The 3D model of conjugate heat transfer from a fire to compressed gas storage cylinder is described. The model predictions of temperature outside and inside the cylinder as well as pressure increase during a fire are compared against a fire test experiment. The simulation reproduced measured in test temperatures and pressures. The original failure criterion of the cylinder in a fire has been applied in the model. This allowed for the prediction of the cylinder catastrophic rupture time with acceptable engineering accuracy. The significance of 3D modelling is demonstrated and recommendations to improve safety of high-pressure composite tanks are given.

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.

Over the next decade and beyond the UK is set to take significant steps towards a new energy economy. This will be an economy where the technologies meeting<br/>our electricity heat and fuel needs have to deliver against three key criteria: sustainability security and affordability.<br/><br/>In this context a wide range of emerging energy technologies are expected to play an important role in reshaping the way we satisfy our energy requirements. The extent to which they do so however will depend fundamentally on their ability to be harnessed safely.<br/><br/>Compiled by HSE’s Emerging Energy Technologies Programme this report provides a current assessment of the health and safety hazards that key emerging energy technologies could pose both to workers and to the public at large. (Nuclear energy technologies fall outside the scope of this report.) But it also highlights how an appropriate framework can be and is being put in place to help ensure that these hazards are managed and controlled effectively – an essential<br/>element in enabling the technologies to make a major contribution to the UK’s energy future.

Since early 2020 Turkey has been considering the role of hydrogen in its energy future with a view to producing a hydrogen strategy in the next few months.  Unlike many other countries considering the role of hydrogen Turkey has only recently (October 2021) ratified the Paris Agreement addressing climate change and its interest is driven more by geopolitical strategic and energy security concerns.   Specifically with concerns about the high share of imported energy particularly gas from Russia it sees hydrogen as part of a policy to increase indigenous energy production.   Turkey already has a relatively high share of renewable power generation particularly hydro and recent solar auctions have resulted in low prices leading to a focus on potential green hydrogen production.  However it still generates over half of its electricity from fossil fuel including over 25% from coal and lignite.  Against that background it provides an interesting case study on some of the key aspects that a country needs to consider when looking to incorporate low-carbon hydrogen into the development of their energy economy.

The research paper can be found on their website

In this report for the first time it has been observed that proton-conducting oxide BaZr_0.1Ce_0.7Y_0.2O_3−δ (BZCY) has significant promotion effect on the catalytic activity of Ni towards ammonia synthesis from hydrogen and nitrogen. Renewable hydrogen can be used for ammonia synthesis to save CO₂ emission. By investigating the operating parameters of the reaction the optimal conditions for this catalyst were identified. It was found that at 620 °C with a total flow rate of 200 mL min−1 and a H₂/N₂ mol ratio of 3 an activity of approximately 250 μmol g⁻¹ h⁻¹ can be achieved. This is ten times larger than that for the unpromoted Ni catalyst under the same conditions although the stability of both catalysts in the presence of steam was not good. The specific activity of Ni supported on proton-conducting oxide BZCY is approximately 72 times higher than that of Ni supported on non-proton conductor M_gO-C_eO₂. These promotion effects were suspected to be due to the proton conducting nature of the support. Therefore it is proposed that the use of proton conducting support materials with highly active ammonia synthesis catalysts such as Ru and Fe will provide improved activity of at lower temperatures.

Hydrogen is expected to have an important role in decarbonising several parts of the UK energy system. This white paper examines the opportunities for hydrogen and fuel cell technologies (H2FC) to contribute to clean growth in the UK.



We assess the strength of the sector by surveying 196 companies working in the area and using other key metrics (for example publication citations and patents). There is already a nascent fuel cell industry working at the cutting edge of global innovation. The UK has an opportunity to grow this industry and to develop an export-focused hydrogen industry over the next few decades. However this will require public nurturing and support. We make a series of recommendations that include:

• Creating separate national fuel cell and hydrogen strategies. These should take UK energy needs capabilities and export opportunities into account. There is a need to coordinate public R&D support and to manage the consequences if European funding and collaboration opportunities become unavailable due to Brexit.
• Creating a public–private “Hydrogen Partnership” to accelerate a shift to hydrogen energy systems in the UK and to stimulate opportunities for businesses.
• Putting in place infrastructure to underpin nascent fuel cell and hydrogen markets including a national refuelling station network and a green hydrogen standard scheme.
• Study what would constitute critical mass in the hydrogen and fuel cell sectors in terms of industry and academic capacity and the skills and knowledge base and consider how critical mass could be achieved most efficiently.
• Consider creating a “Hydrogen Institute” and an “Electrochemical Centre” to coordinate and underpin national innovation over the next decade.

The world’s shipping fleet is responsible for approximately 0.9 Gt of CO2 emissions annually around 2.9 per cent of the world’s man-made emissions. Under an IEA ‘business as usual’ scenario this is forecast to rise to almost 1.7 Gt per year by 2050. The industry’s principal regulatory body the International Maritime Organization (IMO) aims to reduce world shipping’s greenhouse gas emissions in line with the 2015 Paris Agreement targeting a 50 per cent reduction compared with 2008 levels by 2050. The cost of achieving these emission targets however is about $1 trillion and will require focus from regulators operators and end consumers who in the end will have to pay. In this podcast David Ledesma talks to Bruce Moore Howe Robinson Partners to discuss these issues and ask in such a fragmented industry what the immediate priorities  for the marine sector must be and how can it bring about a mix of commercial incentives and regulatory change that result in tangible emissions reductions.

The podcast can be found on their website

HSE maintains a national network of doctors appointed doctors and approved medical examiners of divers who are appointed to deliver certain vital functions under our regulatory framework.1 Over the last year or so we have been reaching out to them and offering training and networking opportunities so that we can learn from each other. Their intelligence from real workplaces helps ensure that our medical approach is grounded by what actually happens and this helped us ensure that our health and work strategy took account of their views. I think that it is increasingly important to share our approaches and our  research outcomes on the global stage in an attempt to learn from other researchers around the world. A good example is the work described in this report on the artificial stone issue. I have been lucky enough to work with the Australian research group who identified an epidemic of silicosis from this exposure in their country and helped to facilitate some cross-comparison of materials with our hygienists and measurement scientists. The dialogue continues and I hope that by doing so we can help to prevent such an epidemic from occurring in the UK.<br/>All HSE research findings are published as soon as we are able to do this and this demonstrates both my and Andrew Curran’s commitment to ensure that we publish the evidence we generate to make workplaces healthier for all.

The Energy Innovation Needs Assessment (EINA) aims to identify the key innovation needs across the UK’s energy system to inform the prioritisation of public sector investment in low-carbon innovation. Using an analytical methodology developed by the Department for Business Energy & Industrial Strategy (BEIS) the EINA takes a system level approach and values innovations in a technology in terms of the system-level benefits a technology innovation provides. This whole system modelling in line with BEIS’s EINA methodology was delivered by the Energy Systems Catapult (ESC) using the Energy System Modelling Environment (ESMETM) as the primary modelling tool.

To support the overall prioritisation of innovation activity the EINA process analyses key technologies in more detail. These technologies are grouped together into sub-themes according to the primary role they fulfil in the energy system. For key technologies within a sub-theme innovations and business opportunities are identified. The main findings at the technology level are summarised in sub-theme reports. An overview report will combine the findings from each sub-theme to provide a broad system-level perspective and prioritisation.

This EINA analysis is based on a combination of desk research by a consortium of economic and engineering consultants and stakeholder engagement. The prioritisation of innovation and business opportunities presented is informed by a workshop organised for each sub-theme assembling key stakeholders from the academic community industry and government.

This report was commissioned prior to advice being received from the CCC on meeting a net zero target and reflects priorities to meet the previous 80% target in 2050. The newly legislated net zero target is not expected to change the set of innovation priorities rather it will make them all more valuable overall. Further work is required to assess detailed implications.