Asda, Amazon and B&Q among retailers in talks to sell devices that feed into household sockets and can cut electricity bills by 30%

• Spanish homes save €10 a month via renewables expansion

Bosses of some of Britain’s biggest retailers are discussing plans with the government to start selling plug-in solar panels as part of a drive to encourage more UK homes to generate their own electricity.

Executives from brands including Currys, B&Q and Amazon met Martin McCluskey, the minister for energy consumers, on Tuesday to discuss guidelines for selling “balcony solar panels” to the British public.

The 700 projects include wind and solar farms, battery storage, gas and hydro plans

More than half the renewable energy projects needed to meet the government’s clean power targets by 2030 are now able to plug into the electricity grid after years of delay, according to the system operator.

The National Energy System Operator (Neso) has offered more than 700 clean energy projects in Great Britain a grid connection date since the start of the year, after a two-year process to unblock a bottleneck that threatened to delay projects into the 2030s.