Seth Mullendore

President and Executive Director

Seth Mullendore is president and executive director of Clean Energy Group (CEG), where he oversees the organization’s mission to advance energy justice and catalyze innovative energy strategies to address the climate crisis. He previously served as vice president and a project director for CEG, leading efforts to enable greater access to the benefits of solar PV and battery storage technologies for low-income communities and communities of color and working with community-based partners to phase out polluting power plants with clean alternatives. Seth is a contributing author to the 2022 book “Environmental Justice and Resiliency in an Age of Uncertainty,” which examines various current environmental issues including energy justice.

Prior to joining CEG, Seth served as a Sustainable Energy Fellow with Union of Concerned Scientists and worked with Maine Clean Communities to advance clean transportation initiatives. Before shifting careers to focus on energy and equity, Seth worked in the technology sector where he founded and managed a web development and online engagement company specializing in outreach services for colleges and universities. Seth holds a M.S. in Civil & Environmental Engineering from Stanford University and a B.S. in Geosciences from the University of Southern Maine.

Tel: 802-223-2554 x213
Location: Montpelier, VT

Blog Posts by Seth Mullendore

Photo Credit: Berkeley Lab
Power outage following Hurricane Sandy. Photo Credit: Dan Nguyen via Flickr, CC BY-NC 2.0.
Photo Credit: Malp/
Photo Credit: Nick Waters, Florida Solar Energy Center.
Malp /
Photo Credit: Millenius /
Photo courtesy of LINC Housing