Director of Solar Programs

Leo Wiegman

Leo Wiegman joined Sustainable Westchester as the Director of Solar Programs in 2021. Prior to joining, Leo co-owned the solar energy firm Croton Energy Group for ten years. In 2015-2016, Leo was a key member of the team at Sustainable Westchester when the fledgling organization launched Westchester Power as its first program offering for its member municipalities. Leo is a NABCEP Certified PV Installation Professional™.

Leo is very interested in creating the kinds of regional public-private-non-profit partnerships that can accelerate carbon reduction in significant ways. He serves as president of the board of directors of, a Westchester-based nonprofit composed of member communities united to reduce emissions 100% by 2040. CURE100’s Carbon Tracker application helps households quantify their specific carbon emissions and create reduction plans.

A Westchester resident since 1993, Leo also had the pleasure of serving as a local elected official in Croton-on-Hudson for twelve years, including three terms as Mayor. Science is a universal thread in his life, Leo’s early career in book publishing included developing book programs in the social and physical sciences.