An eco tycoon has attacked David Cameron’s green U-turn – after pledging a winter price freeze.

Millionaire Dale Vince said the Prime Minister was “playing politics” by blaming big supplier price hikes on green taxes.

Chancellor George Osborne is set to tackle green levies in next week’s autumn statement.

Reports say he could delay implementing one add-on, the energy company obligation, to save households £50 a year.

But former hippy Vince warned that without action to wean us off imported fossil fuels like gas, bills could double in the next decade.

He called Cameron’s pledge to roll back green levies a “cheap shot”, adding: “The Government is playing politics by blaming ‘green taxes’,
and the regulator has not been strong enough.”

He also slammed big suppliers, saying: “The energy industry has to change. It needs to serve the people of Britain, not the largely foreign owners of the Big Six.”

His comments came as Ecotricity extended a winter price freeze from January until next April.

The firm’s customer numbers have jumped to 90,000. About 40% of its electricity comes from its own wind and solar farms.

Ecotricity’s average dual fuel bill – £1,382 – is similar to standard tariffs for big suppliers which have announced recent increases.