Some 550 people are moving into the new residential properties, which are situated in Dalton Square, Hackney, East London.
The decentralised community energy centre has been rated as “excellent”, which E.ON said was equivalent to a Level 3 in the Code for Sustainable Homes.
Don Leiper, managing director of E.ON, said: “Decentralised energy centres, which generate community-based, low-carbon energy from more sustainable sources, look set to play a major part in helping the UK keep energy prices affordable, carbon emissions down and the country’s lights on.”
He added that E.ON is committed to reducing the carbon footprint and energy costs of UK homes and businesses.
It is one of the company accredited under the Low Carbon Building Programme Phase 2 for this purpose.