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UK's grid, offtake risks threaten H2 FIDs: Utilities

  • Spanish Market: Electricity, Hydrogen
  • 13/03/26

Grid connection delays, difficulty securing long-term hydrogen offtake deals and challenges sourcing compliant low-carbon power are the main barriers to UK renewable hydrogen projects reaching final investment decisions (FIDs), utilities RWE Generation and Statkraft said at the Hydrogen UK conference this week.

RWE is developing large-scale renewable hydrogen projects in Germany, in the Netherlands and in the UK, leveraging its sizeable renewable portfolio in northwest Europe.

RWE's UK green hydrogen schemes include a 100MW electrolyser at Pembroke and a 100MW plant at Grangemouth — the latter reduced from 200MW on weaker demand expectations. Both are shortlisted in the UK's second hydrogen allocation round (HAR2). RWE also plans a potential HAR3 bid with its Liverpool Bay project for connection to the HyNet network.

HyNet partner Progressive Energy's chief executive Chris Manson Whitton said it would be a "three digit megawatt" electrolyser.

But Claire Woodward, RWE's head of UK hydrogen project development, said grid connection dates are "very uncertain" and any timeline slips could affect HAR2 eligibility. Offtaker risk is the biggest hurdle, she said. A lack of hydrogen pipelines forces 15-year contracts with single local buyers, creating significant risks for producers, customers and financiers. Combined with delays to the HAR2 award decision, these factors make securing the board's FID approval difficult, she said.

State-owned Low Carbon Contracts Company (LCCC) head of hydrogen Emma Bezuidenhout said HAR1 projects also face delays between signing subsidy contracts and FID because of offtake challenges.

Electricity sourcing further complicates development. Statkraft's vice president of origination Duncan Dale said reliance on a single co-located renewable asset can leave electrolysers idle for too long, undermining profitability. Using grid electricity at uncertain carbon intensity risks non-compliance with the UK's low carbon hydrogen standard (LCHS) and HAR rules, Dale said, and hidden electrical infrastructure costs also offset any savings from co-located designs.

Dale said developers need utility partners with "massive and diverse" renewable portfolios to stay profitable, limit spot market exposure and maintain LCHS compliance. Even with a 5:1 wind farm-to-electrolyser capacity ratio, he said, electrolysers would still use grid power 33pc of the time at uncertain price and carbon intensity.

Dale said a 15-year fixed price power purchase agreement (PPA) with a creditworthy supplier is essential. A £20/MWh price increase over 15 years for 1 TWh/yr equates to £300mn in losses — "peanuts" compared with potential geopolitical driven swings, Dale said. Electricity accounts for 70–80pc of levelised hydrogen production costs, making cost control critical.


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