Adapting the existing gas network to hydrogen or biogas is the cheapest way to decarbonise heat by 2050, a report by KPMG for the Energy Networks Asso-ciation (ENA) has found.

The report compared four different scenarios and found that evolving the gas grid was the cheapest way to meet 2050 decarbonisation targets.

Under the ‘evolution of gas networks’ scenario, the target was met under the following conditions:

Gas remains the main heating fuel for the ­majority of customers.