Solving the UK’s emerging energy gap
As gas plants retire and renewables expand, hydrogen storage keeps the lights on and costs down.
The UK’s energy system is transforming rapidly, but renewable growth is outpacing the flexibility needed to manage it.
Wind and solar now provide nearly half of electricity generation, but their variability leads to oversupply (wasted clean power) and undersupply (demand outstripping output). By the 2030s, this gap could reach tens of terawatt-hours each year.
Without the ability to store and shift energy at scale, imbalance drives higher costs, unnecessary curtailment and greater exposure to price spikes.
With gas plants retiring and a flexible generation capacity gap expected by 2035, the UK faces a pivotal choice; continue to reinvest in fossil generation or invest in future-proof alternatives that secure energy and accelerate decarbonisation.
enough electricity to power around 300,000 homes for a year.
LDES technologies — including hydrogen-enabled systems — store surplus renewable electricity for days, weeks or even seasons, then return it when needed.
This will help the UK:
By backing H₂-LDES now, the UK can build a clean, secure and affordable power system for the decades ahead.
of UK electricity in 2024 was generated by gas power stations.
the UK’s enduring dispatchable electricity requirement by the 2030s.
the potential reduction in renewable curtailment with H2-LDES
