Vivint Solar announced a new partnership with Mercedes-Benz Energy on Thursday that will couple batteries manufactured by the German automaker with residential solar energy systems from Vivint.

Sunrun Inc., America’s largest residential-solar company, is about to become even bigger by acquiring one of its top rivals. The deal will also help redefine it as more than just an installer of ...

Daimler unveiled its Mercedes-branded home battery pack last year, but this new deal with Vivint will enable them to distribute it more widely in the US.