NEW YORK (AP) — Sunrun, the company that helped pioneer a financing scheme that has put solar panels on thousands of homes, is getting into the construction side of the business. That makes it more like SolarCity, one of its chief rivals.

Sunrun is acquiring the residential installation company REC Solar from Mainstream Energy Corp., as well as two of its other divisions, the parts distributor AEE Solar and SnapNrack, which builds the racks that hold solar panels in place.