Powering a more resilient energy future
When renewables exceed demand, we store the surplus as hydrogen and release it back as power when demand rises.
Haldane Energy is developing large-scale, affordable electricity storage tailored to the UK’s needs and natural resources.
We convert surplus renewable electricity into hydrogen, store it in underground salt caverns, and deliver power back to the grid on demand, creating the flexibility the UK’s energy system needs.
H₂-LDES is a transformative technology that will:
We aim to make the UK a world leader in long duration electricity storage - unlocking export potential, attracting inward investment, and supporting a resilient, future-ready energy economy.
Part of Windward Energy, the UK-wide next generation power business with a solution-focused portfolio spanning renewable energy generation, grid networks and long duration electricity storage.
Haldane Energy’s sister companies are; Bute Energy, Wales’s largest onshore wind developer with a portfolio pipeline of over 2GW and Green GEN Cymru, an Ofgem licensed independent distribution network operator (IDNO) that plans to develop and build over 300km of new grid infrastructure.
