Ministers preparing to slash heat pump subsidies to fund defence spending

Exclusive: Some of £2bn savings needed from energy budget expected to come from boiler upgrade scheme, sources say

Ministers are preparing to slash the amount of money available to subsidise heat pumps as they look for ways to fund higher defence spending, sources have told the Guardian.

Miatta Fahnbulleh, the energy secretary, has been tasked with finding more than £2bn in savings from her budget to help pay for defence investment under a plan drawn up by the previous government.