Ofgem's £25bn plan puts climate goals at risk, say energy firms

Companies claim that reducing returns to cut energy bills will have impact on investment

Energy companies have accused the regulator Ofgem of putting Britain's climate goals at risk by clamping down on returns for green investors in an effort to shave 20 a year from home energy bills.

Ofgem has proposed halving the returns that companies can make over the next five years through a 25bn green investment plan designed to prepare Britain's energy infrastructure for a low-carbon future.