Our Team


Andreas Karelas
Executive Director

Andreas is a dedicated renewable energy advocate with over ten years of environmental and renewable energy nonprofit experience. Andreas incorporated RE-volv as a nonprofit organization in February 2011. Prior to founding RE-volv Andreas worked with a number of leading organizations including the American Council on Renewable Energy (ACORE), the National Audubon Society, blueEnergy, and the Center for Resource Solutions. Andreas holds Master’s degrees in International Affairs and in Natural Resources and Sustainable Development, and a Bachelor’s degree in Economics. He is a 2013 Audubon Toyota TogetherGreen Conservation Leadership Fellow. He also serves on the Steering Committee of the Local Clean Energy Alliance. Contact Andreas at andreas [at] re-volv [dot] org.

Polly Baranco

Polly Baranco
Solar Finance Director

Polly has over ten years experience in high tech, with four of those years being in the cleantech industry, and she is currently a Senior Analyst at S-Power. With experience at Southern California Edison and both solar integrators and solar manufacturers, Polly now leads RE-volv’s financial arm helping communities realize their renewable energy goals. Polly has created financial models that look at European and multiple US state markets, and is utilizing that experience to help RE-volv provide services to underserved communities while also being sustainable. Polly holds an MBA with a concentration on Finance and Strategy, and a Master’s in Arts Management.

Sarah Brinker 
Associate Director of Partnerships & Philanthropy

Sarah is committed to protecting the environment by offering clean energy solutions to all. Prior to joining RE-volv, Sarah was a major gifts officer at the Sierra Club, the nation's most prominent environmental organization. At the Sierra Club, Sarah supported national campaigns to get the country on the road to 100% clean energy. In addition to raising gifts from individuals and institutions, Sarah also managed the national fundraising efforts specifically for the Environmental Law program, one of the Club's most vital activist tools. She attended the University of California, Davis where she led efforts to divert waste at the nation's first zero waste stadium. In her free time, Sarah enjoys running marathons, hiking, playing soccer, and traveling. Contact Sarah at sarah [at] re-volv [dot] org.

Gavriella Keyles
Communications & Program Manager

A New Jersey native, Gavi holds a Bachelor's degree from Northwestern University, where she completed majors in Middle East & North African (MENA) Studies and Theatre. Gavi has a background in strategic communications, events management and development for nonprofits. Along with renewable energy, she is passionate about food policy and its relationship to poverty, climate change and environmental stewardship. Gavi enjoys cycling, yoga, cooking and traveling. Gavi is working with RE-volv as a fellow in the Residency in Social Enterprise with New Sector Alliance, an Americorps program. Contact Gavi at gavi [at] re-volv [dot] org.

Board of Directors

Samy Jana

Samy Jana
Senior Manager, Corporate Programs, Yahoo

Samy is a skilled marketing and advertising professional with over six years of experience, currently working at Yahoo. She possesses a deep understanding of digital media, off line media, organic and paid search, mobile, and social media marketing. She is passionate about the renewable energy field and excited to be working with RE-volv. Samy is overseeing RE-volv's communications efforts with a focus on social media, online communications, and fundraising. Samy holds a degree in Biology and Biomedical Engineering.

Megan Crocker
Co-founder, Bright Circle Ventures


Megan is passionate about supporting the critical intersection of clean energy and finance, and is currently launching a solar venture capital fund, Bright Circle Ventures. She earned her MBA in Sustainable Management from Presidio Graduate School in 2014. Prior to business school, Megan worked for ten years for Symphony Asset Management, a $10B institutional hedge fund company, where her focus was on client service, marketing, management and coordination of both internal and external communications. Megan is a Chartered Alternative Investment Analyst (CAIA, 2007) and received a BS in Veterinary Science (1998) from the University of Arizona, Tucson. 

Jennifer Martin

Jennifer Martin
Executive Director, Center for Resource Solutions

Jennifer has over twenty years of experience in renewable energy, energy efficiency and distributed generation policy, markets and technology development, as well as electricity sector and climate change policy and regulation. Jennifer is responsible for the overall management of the Green-e Energy and Green-e Climate certification programs, and provides strategic program guidance to all CRS programs and new initiatives. Jennifer is a long-standing leader in the renewable energy community.

Sean Miller

Sean Miller
Co-Director, The Green Schools Group

Sean has worked tirelessly to bring environmental education and green schools to a national level of importance. For instance, he has played a key role in organizing the successful creation of the D.C. Healthy Schools Act – one of the most transformative pieces of healthy schools legislation ever enacted by a municipality – and also the U.S. Department of Education’s new Green Ribbon Schools program, the first ever for the federal government. He has written a plenitude of environmental curriculum with such entities as PBS and the U.S. Department of Energy to further bring the many benefits of sustainability education to schools and communities nationwide. He received his BA in both Psychology and Philosophy from The College of William and Mary and earned two Master’s degrees in International Relations (MA) and Education (MAT) from American University. When he isn’t riding his bike around the nation’s capital, Sean is working on his doctorate in sustainability education at Georgetown University and teaching about such subjects at American University as well.


Robert J. Nelson
Partner, Lieff Cabraser Heimann & Bernstein, LLP

Robert J. Nelson is a partner at Lieff Cabraser Law Firm. He has played a leading role in the firm's False Claims Act (whistleblower law), automotive, aviation, defective products, mass torts, tobacco, and consumer fraud cases, taking on many of the world's largest corporations and holding them accountable. He has served as court-appointed Lead or Co-Lead Counsel in numerous state and federal coordinated proceedings, as well as in more than 30 class actions.

Paul Wapner

Dr. Paul Wapner
Director of Global Environmental Politics Program, American University

Paul is a thought leader on the environmental issues of today. He is a prolific writer having written such books as Living Through the End of Nature: The Future of American Environmentalism, and, Environmental Activism and World Civic Politics. Through his years of teaching he has developed a deep understanding of human behavior in relation to environmentalism, climate change, and civic engagement.

Note: Andreas Karelas, Executive Director and Polly Baranco, Solar Finance Director also serve on the Board of Directors.

Advisory Committee

Troy Arnold

Troy Arnold
Director of Development, Justice & Diversity Center

Troy is a long standing professional in the field of development. He has raised over $15 million dollars for a variety of nonprofits and has over a decade of fundraising experience. He has managed annual fund campaigns, major gifts, events, foundation and government grants, and board development. His development work has included many environmental and renewable energy focused organizations.

Galen Lemei
Advisor to the Commissioner, California Energy Commission

Galen has a long history of applying his legal expertise to issues of renewable energy. He has served as Advisor to California Energy Commissioner Douglas since August 2009, after a year of service as Energy Commission staff counsel. Prior to joining the Energy Commission, Galen was a legal consultant for the Center for Resource Solutions, an environmental nonprofit advocating for renewable energy, and practiced commercial litigation with the law firm of Gibson, Dunn & Crutcher, LLP.

Alyssa Newman

Alyssa Newman
Public Affairs Manager, Trina Solar

Alyssa has eighteen years of experience working in the energy and environmental space. She is a global corporate social responsibility professional with diverse experience in the public and private sector. She's currently the Public Affairs Manager for Trina Solar (NYSE: TSL). Alyssa founded the SunPower Foundation where she managed $5M in global energy education programs and over 1MW in product donations in developed and developing markets. She's previously worked at PG&E, SunPower, SolarCity, The Nature Conservancy, and Sungevity.