A ban on subsidies for new onshore wind farms is to be lifted by the government, reversing a four-year ban introduced by David Cameron.The decision means that farmers who had put plans to build a turbine on hold should now consider revisiting the idea.

Environmental groups welcomed the policy change, which followed a 2015 Tory manifesto pledge to “halt the spread of subsidised onshore wind farms”.

The ban resulted in a significant drop in onshore wind development, just as advancing technology meant the price of onshore wind energy dropped sharply.

An official announcement of the policy change is expected to be made by Alok Sharma, the business and energy secretary.

“This is great news for anyone who pays an energy bill, and it’s great news for our climate,” said John Sauven, executive director of Greenpeace UK.“Onshore wind and solar are not only some of the cheapest sources of energy, reducing costs for everyone, but they are a vital part of putting the UK on track to net zero as quickly as possible. 

“The government now needs to engage with local communities in order to get large amounts of onshore wind and solar off the ground. Leading by example, by tripling the UK’s wind and solar by 2030, is a prerequisite for successful UK leadership at this year’s global climate talks in Glasgow.  

“This is an important measure to clean up our power system, but action is needed across the board, including delivery of the government’s offshore wind target and upgrading the grid for electric vehicles and storage.”

The subsidy ban was brought in to placate critics of the turbines’ visual impact on the landscape. The government said at the time that around 250 planned wind farms were cancelled as a result of the move.

Onshore wind power is now the cheapest renewable way of generating electricity in the UK, undercutting other modes like solar power. While offshore wind has also reduced in price, its inherent engineering challenges means costs are higher for turbines out at sea.

The subsidy ban was brought in to placate critics of the turbines’ visual impact on the landscape. The government said at the time that around 250 planned wind farms were cancelled as a result of the move

“We now need to catch up on five lost years, remove the planning barriers to onshore wind energy this government put in place and look at the eye-watering business rates they put on solar energy.”