“Green” hydrogen can largely replace natural gas for both heat and electricity generation, but it would be far more cost-effective to produce H2 from natural gas (with carbon capture and storage [CCS]) than renewable energy and electrolysis, according to a report released on Thursday by the UK’s Committee on Climate Change (CCC), the independent statutory body that advises the government on climate issues.

“A combination of energy efficiency and electrification based on zero-carbon electricity can take the UK a great deal of the way towards near-full decarbonisation of the whole energy system,” says the 128-page Hydrogen in a Low-Carbon Economy study.