Peer-to-peer (P2P) energy trading using distributed battery storage in Japanese households could be a scalable business once prohibitive rules change in a couple of years’ time, a provider of renewable energy equipment in the country has said.

London Stock Exchange-listed homebuilding company Taylor Wimpey will trial heat batteries made by Sunamp in a solar PV-powered domestic heating pilot project.

SunPower Corporation has become the latest US solar provider to pilot the deployment of residential storage systems in California by extending the terms of an existing partnership with homebuilding company KB Homes to include storage.