Redwood Energy

About

Founded in 2011, Redwood Energy is a private headquartered in United States with approximately 10-50 employees specializing in Solar, Energy Storage.

Redwood Energy is a certified Small Business Enterprise partnership founded in 2011 by Sean Armstrong and Michael Winkler. The firm specializes in comprehensive energy design services for affordable housing, including mechanical system design, Title 24 energy modeling, solar array sizing, and certification support (HERS, GreenPoint Rated, LEED, CalGreen). Redwood Energy has led the design of more than 20,000 units of zero net energy all-electric affordable housing and has designed approximately two-thirds of all-electric apartments built in California between 2012-2019. The firm maintains one of North America's largest databases of circuit-level monitored residential energy use (510 units across 9 developments). Key service areas include utility allowance calculations, building electrification design support, and research on heat pump water heaters, pool heating systems, and all-electric retrofits. The company has published eight technical guides on all-electric design, supported California Title 24 Code updates (2016, 2019, 2022, 2025), and founded the nation's first building electrification conference in 2016.

Certifications & Awards