The cost of electricity also needs to come down – for example by removing green policy costs from power prices – to make energy-efficient heat pumps cheaper to run.
And tackling a lack of awareness and misconceptions about the technology will be crucial, the committee said.
The committee pointed to findings from a citizens’ panel it convened which found people “in principle” support the move towards cleaner heating and insulation but have concerns about a range of issues including upfront costs, hassle, noise, reliability and how it would work for renters
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The committee said its modelling shows that, by mid-century, households would save around £700 a year on heating bills and another £700 on motoring costs, with a switch to electric heat pumps for home heating and electric vehicles (EVs).