Israel’s SolarEdge Technologies is to integrate its PV invertors with Tesla Motor’s Powerwall – its home battery solution. It will enable homeowners to store surplus energy at point of generation for later reuse, providing either complete energy independence or a backup for electrical outages.
http://www.solaredge.com/articles/solaredge_announces_collaboration_with_tesla_motors
http://www.greenprophet.com/2015/05/solaredge-and-tesla-team-up-to-tackle-distributed-pv-storage/