Green hydrogen projects in the UK and Europe face delay and uncertainty
Green hydrogen targets face growing demand shortfall
The UK holds one of Europe's largest green hydrogen project pipelines, but the gap between announced plans and actual construction continues to widen. Government data show up to 27 GW of low-carbon hydrogen projects in development across more than 250 initiatives. However, weak industrial demand and delayed investment decisions now threaten the UK's target of 1 GW electrolytic capacity by the mid-2020s.
This pattern extends across Europe. While policy support has grown and project announcements remain frequent, the number of schemes reaching final investment decision stays well below the scale needed to meet 2030 production goals. Consequently, the mismatch between pipeline ambition and commercial reality has become the defining challenge for the sector.
For UK businesses, the implications extend beyond energy policy. Hydrogen features prominently in supply chain decarbonisation roadmaps, public procurement strategies, and net zero commitments. Therefore, understanding the commercial and regulatory barriers slowing deployment matters for firms planning emissions reductions that depend on fuel switching or industrial process changes.
Allocation rounds deliver early capacity but scale remains limited
The UK government launched its first Hydrogen Allocation Round in 2023. HAR1 awarded contracts to 11 projects totaling 125 MW of production capacity. These facilities are expected to begin operation from 2025 onwards. The mechanism provides revenue support to bridge the cost gap between green hydrogen production and conventional fuels.
A second allocation round followed in 2024. HAR2 was designed to support up to 875 MW of additional capacity. In total, the two rounds aim to establish 1 GW of electrolytic hydrogen production in construction or operation by the mid-2020s. The government announced in early 2025 that 27 projects had been selected for the next stage of HAR2.
Hydrogen UK's project tracker lists 198 active schemes across the country. Of these, 24 are already operational, representing 23.038 GW of total production capacity when fully deployed. However, the majority remain at earlier development stages. Meanwhile, the gap between announced ambition and delivered output continues to grow.
The allocation rounds represent tangible progress. Nevertheless, the volumes secured remain small compared to the scale of industrial hydrogen demand projected for the next decade. Furthermore, the pace of project delivery depends on factors beyond subsidy availability, including grid connections, planning approvals, and offtake agreements.
European cancellations highlight widening execution gap
Across Europe, the hydrogen sector has encountered significant headwinds. S&P Global reported in February 2025 that more than 3 GW of electrolysis capacity had reached final investment decision. However, this was offset by around 2 GW of cancellations. The share of announced projects progressing to construction remained far smaller than the headline pipeline suggested.
By November 2025, S&P Global identified nearly 18 GW of renewable-powered electrolytic hydrogen projects at an advanced stage. Nonetheless, 7 GW had been canceled or placed on hold. This represents a substantial erosion of the pipeline, particularly among projects that had moved beyond initial feasibility studies.
The European Hydrogen Observatory tracks similar trends. Many projects announced between 2021 and 2023 have failed to secure final investment decisions. Developers cite uncertain demand, volatile electricity prices, and insufficient long-term offtake contracts as primary barriers. Additionally, some schemes have been delayed by grid connection bottlenecks or planning constraints.
These cancellations matter because they reduce the likelihood of meeting 2030 production targets. The Energy Industries Council warned that stalling demand could place UK and European capacity goals beyond reach. This assessment aligns with broader market analysis showing that industrial hydrogen consumption is growing more slowly than anticipated.
Industrial demand lags behind production ambitions
The fundamental challenge facing green hydrogen is demand. Announced production capacity far exceeds current or near-term industrial offtake. This imbalance creates financial risk for developers and makes project financing harder to secure. As a result, many schemes remain stalled despite policy support.
Research published in Nature Energy in 2024 quantified this gap. The study found that cumulative subsidies needed to realize all announced hydrogen projects by 2030 would exceed currently committed public funding by more than 300 percent. This assumes no additional carbon pricing mechanisms. The analysis underscores the scale of the financing shortfall facing the sector.
PwC's demand forecasts reinforce this view. The consultancy projects that hydrogen consumption will grow modestly through 2030, with more substantial acceleration occurring only in the following decade. This timeline creates a mismatch between government production targets and the pace at which industrial users are prepared to adopt hydrogen.
Several factors constrain demand growth. First, green hydrogen remains more expensive than fossil-based alternatives in most applications. Second, many industrial processes require capital investment to switch to hydrogen. Third, long-term price certainty is limited, making procurement decisions difficult. Finally, infrastructure for hydrogen transport and storage remains underdeveloped in many regions.
For businesses considering hydrogen as part of their decarbonisation strategy, these dynamics create planning uncertainty. Companies evaluating fuel switching need confidence that supply will be available at predictable prices. However, the current market does not yet provide that certainty, particularly for firms outside heavy industry sectors where early adoption is concentrated.
What this means for UK businesses with net zero commitments
Many UK firms have included hydrogen in their net zero roadmaps. This is particularly common in sectors such as chemicals, steel, glass, and heavy transport. Additionally, public sector suppliers face growing pressure to demonstrate low-carbon supply chains, which often involves hydrogen as part of emissions reduction plans.
However, the widening gap between pipeline announcements and actual deployment introduces risk. Businesses planning to switch to hydrogen may find that supply is unavailable at the anticipated scale or price. This could delay emissions reductions or force companies to pursue alternative decarbonisation pathways.
Procurement strategies also face uncertainty. Long-term offtake agreements are essential for hydrogen project financing, but many businesses remain reluctant to commit without clearer price visibility. Furthermore, the regulatory framework for hydrogen use in certain applications is still developing, which adds complexity to investment decisions.
For SMEs, the picture is more challenging. Large industrial users can negotiate direct supply agreements with hydrogen producers. Smaller firms typically rely on existing energy infrastructure and may not have the scale to secure dedicated hydrogen supply. Therefore, widespread SME access to green hydrogen will depend on the development of distribution networks and blending infrastructure.
The timeline matters too. If 2030 production targets are missed, the pace of industrial decarbonisation across UK supply chains could slow. This would affect companies in sectors where hydrogen is the most viable low-carbon option. Consequently, firms should monitor project delivery closely and maintain flexibility in their emissions reduction plans.
Key facts on UK and European green hydrogen deployment
- The UK government reports up to 27 GW of low-carbon hydrogen projects in development, spanning more than 250 initiatives across the country.
- Hydrogen UK's project tracker lists 198 active projects, with 24 already operational, representing 23.038 GW of total production capacity when fully deployed.
- The first Hydrogen Allocation Round awarded contracts to 11 projects totaling 125 MW, with operations expected from 2025 onwards.
- The second allocation round aims to support up to 875 MW of additional capacity, with 27 projects selected for the next stage as of early 2025.
- In Europe, more than 3 GW of electrolysis capacity reached final investment decision by early 2025, but around 2 GW of projects were canceled during the same period.
- S&P Global identified nearly 18 GW of advanced renewable hydrogen projects across Europe by late 2025, though 7 GW had been canceled or placed on hold.
- Research published in Nature Energy found that subsidies needed to deliver all announced hydrogen projects by 2030 exceed current commitments by more than 300 percent without additional carbon pricing.
Planning for hydrogen supply uncertainty in emissions strategies
Businesses with net zero commitments should treat hydrogen availability as a variable rather than a certainty. The current pipeline suggests substantial future capacity, but delivery timelines remain uncertain. Therefore, emissions reduction plans should incorporate alternative pathways alongside hydrogen options.
For firms in heavy industry, engaging early with hydrogen producers can improve supply security. Long-term offtake agreements help developers secure financing and give buyers more predictable pricing. However, these contracts require careful structuring to manage volume and price risk. Additionally, businesses should assess whether partial hydrogen blending offers a more achievable near-term option than full fuel switching.
Supply chain planning also requires attention. Companies relying on hydrogen for indirect emissions reductions need visibility over their suppliers' fuel transition plans. This is particularly relevant for businesses responding to public procurement requirements under PPN 06/21 or preparing for mandatory climate-related disclosures.
Our net zero program helps businesses develop emissions reduction strategies that account for technology and supply uncertainties. We work with clients to model different decarbonisation scenarios, including hydrogen adoption timelines, and build flexible roadmaps that remain credible as market conditions evolve.
For businesses tracking regulatory developments, the government's approach to hydrogen allocation rounds will shape market dynamics. Future rounds are expected, but the pace and scale of subsidy allocation will depend on budget availability and policy priorities. Monitoring these decisions helps firms anticipate when commercial hydrogen supply may become viable for their operations.
Training also matters. As hydrogen technologies develop, businesses need internal capability to assess options and manage new fuel sources safely. The SBS Academy provides training on emerging low-carbon technologies, including hydrogen applications, to help teams make informed decisions.
Where to find further information on hydrogen policy and projects
The UK government publishes updates on hydrogen policy and allocation rounds through the Department for Energy Security and Net Zero. This includes details of awarded contracts, eligibility criteria, and upcoming funding opportunities.
Hydrogen UK maintains a project tracker and industry resources that provide visibility over active schemes across the country. The tracker includes location, capacity, and development stage data for individual projects.
For European market analysis, S&P Global publishes regular reports on hydrogen project pipelines, investment decisions, and cancellations. These reports offer useful context for understanding broader market trends affecting UK deployment.
The European Hydrogen Observatory provides data on project announcements, capacity additions, and policy developments across EU member states. This resource is helpful for businesses with cross-border operations or supply chains.
Firms seeking guidance on integrating hydrogen into their emissions reduction plans can contact us directly. We help businesses evaluate technology options, model cost implications, and develop credible net zero strategies that reflect current market realities.