In an energy system that meets the UK government’s goal of decarbonising the country’s electricity supply by 2035, hydrogen will probably be needed for backup power, with a limited role in heating buildings, and blue hydrogen will be required to meet more than half of demand, according to the UK’s independent climate advisory body.

In its new report, Delivering a Reliable Decarbonised Power System, released today, the Climate Change Committee (CCC) sets out several scenarios that would enable the UK’s electricity grid to reach net-zero emissions by 2035, with 42 of its 131 pages dedicated to hydrogen production, use and infrastructure.