The Government’s plan to end on-shore wind subsidies next year was in doubt after it was defeated in the House of Lords, in a move that could spark further hostilities between David Cameron and peers.

The Lords backed a Labour amendment deleting a clause in the Energy Bill that would have ended the renewables obligation in March 2016, a year earlier than planned.

Shadow energy minister Baroness Worthington had told peers that scrapping the subsidy would save no more than 30p to each household a year. Ecotricity, a leading renewable energy firm, has called for the Government to create a level playing field by also ending fossil fuel subsidies amid claims the sector will be devastated by the withdrawal of support.

It was unclear whether the Government would seek to reinsert the measure into the Bill, which would risk delaying the legislation.

Following the defeat, a Department for Energy and Climate Change spokesman said: “The Government is disappointed that a measure to deliver on our manifesto commitment to end new subsidies for on-shore wind has been removed from the Energy Bill.

“Our priority is providing clean, affordable and secure energy that hard-working families and businesses can rely on.”

Ahead of the vote, Conservative peer Lord Bourne warned his colleagues against voting down a measure that was a “clear manifesto commitment” by a democratically elected Government.