Paul Winnowski will now oversee all operations at Mainstream Energy and its subsidiaries REC Solar, AEE Solar and SnapNRack in his new position as President and Chief Executive.

Winnowski has more than two decades of experience in running large corporations, serving most recently as president at United Technologies (UTC) Fire and Security in North Europe and South Africa. Before his work with UTC, Winnowski worked in several leadership roles at General Electric.

“As a former executive at GE and UTC, and coming from an industry which has experienced rapid growth, geographic expansion and significant cost reductions, Paul will bring insights and expertise critical to our next phase of growth,” said Timothy Ball, Mainstream Energy’s chairman. “His experience in increasing customer access and adoption, while reducing cost through operational efficiency, lower customer acquisition cost and scalable systems is a natural parallel for solar. Paul has the strategic insights and operational know-how to accelerate our vision of bringing solar to the mainstream.”