German electric utility E.ON, one of the UK’s largest renewable energy generators, announced Tuesday that it had transitioned all of its residential customers in Britain to 100% renewable electricity at no extra cost, a move which now provides more than 3.3 million British households with 100% renewable electricity.

E.ON UK announced on Tuesday that the electricity supply to all its British customers would be matched by renewable sources including wind, biomass, and solar. According to the company, this is the largest such switch from traditional electricity generating sources to renewables in the UK to date, transitioning more than 3.3. million homes to 100% renewable electricity supply.

The move comes on the heels of a survey of electricity customers which showed that more than three-in-five Brits (61% to be specific) not already on a renewable energy tariff would be likely to change to a renewable electricity supplier if at a reasonable price. The survey was conducted by YouGov, a British international Internet-based market research and data analytics firm, which interviewed 4,312 people in late-June.

“Climate change is the defining issue of our era, and one that energy customers are increasingly concerned about,” said E.ON UK Chief Executive Michael Lewis.

“We believe large-scale action can make significant change possible and we’re committed to playing a leading role and setting an example for others to follow, that’s why we’re providing all of our residential customers with 100% renewable electricity as standard – a change at a scale never seen before in Britain.

“Our announcement is an important first step in a journey towards a more sustainable and personalised energy system, but the future of energy doesn’t stop here. The opportunities include helping all of our customers to better manage their energy through smart, personalised and sustainable technologies.”

E.ON will use a combination of electricity generated from its own fleet of renewable energy sources as well as direct purchase agreements with independent wind generators around the country. Any remaining electricity not matched with locally-generated renewable electricity will be matched with 100% renewable electricity sourced externally through renewable electricity guarantee certificates from the likes of wind, biomass, and solar sources.