About Us

Clean Energy Works was founded by Dr. Holmes Hummel to accelerate investments in the clean energy economy on inclusive terms that are fiscally sustainable and financially scalable. Since then, Clean Energy Works has won recognition as a winner or finalist in five international searches for high-impact innovation and breakthrough solutions for clean energy deployment. Previously, Dr. Hummel served as the Senior Policy Advisor in the Department of Energy’s Office of Policy & International Affairs from 2009-2013. Among the responsibilities in that role, Dr. Hummel convened the first agency-wide working group on finance with a focus on expanding participation in the clean energy economy. In addition to prior work with energy innovators in the Silicon Valley, Dr. Hummel earned a doctorate degree from Stanford University for interdisciplinary research on energy technology scenarios that achieve 100% clean energy for all. Currently an Adjunct Professor at Stanford, Dr. Hummel collaborates with Dr. Anthony Kinslow II to teach a course called Quest for an Inclusive Clean Energy Economy.

Tamara is the Managing Director of Clean Energy Works. She brings more than fifteen years of managerial experience in the nonprofit and public sectors. She has served as Director of programs and policy for mayoral administrations in Atlanta and Houston, as Chief of Staff to a Houston City Councilmember, as the Executive Director of the Southeastern African American Farmers Organic Network (SAAFON), as the founder of the Social Justice Impact Project / Inquiring Systems Inc., and as a consultant guide to dozens of organizations over ten years of independent practice.

In the energy sector, Ms. Jones held positions of Director of Program Development & Government Relations at Southface Energy Institute and Director of Programs and Services for the Southeast Energy Efficiency Alliance (SEEA). At SEEA, she administered regional energy efficiency building retrofit programs for which she was designated a White House Champion of Change in 2011. Ms. Jones holds a Bachelor’s degree in Political Science and Philosophy from Long Island University Brooklyn Campus and a Master’s degree in Political Science from Yale University.

Jenna brings more than ten years of project management experience to Clean Energy Works, where she is the Director of Operations and leads communications and development efforts in support of accelerating investment in the clean energy economy. Previously, Ms. Barron worked to secure funding for research and programs to eliminate labor and human rights abuses in global supply chains at Verité. At Oceana, Ms. Barron helped develop proposals for new initiatives leading to the founding of country offices in the Philippines, Brazil, and Canada. Ms. Barron holds a degree in Diplomacy and World Affairs from Occidental College in Los Angeles.

Stephen is Chief Insight Officer and Director of Utility Policy & Programs for Clean Energy Works. Prior to joining Clean Energy Works, Mr. Bickel was President and co-founder of LibertyHomes a nonprofit that worked in closely with Clean Energy Works to advance adoption of the Pay As You Save® (PAYS®) system of inclusive utility investment so that all families, regardless of income, will live in homes and communities that are resilient, safe, healthy, affordable, and energy independent. While at LibertyHomes Mr. Bickel and co-founder Jill Ferguson, facilitated completion of the first two peer reviewed independent evaluations of PAYS programs, and created numerous resources, including the PAYS® Pals Newsletter, to coalesce, inform, and empower champions of PAYS and inclusive utility investment.

Mr. Bickel brings two decades of experience building residential energy efficiency and product rating and certification programs, with particular attention to crafting solutions informed by behavioral science. Prior to founding LibertyHomes in 2019, Mr. Bickel was co-owner and Executive Vice President at D+R International where he supported EPA, DOE, HUD, regional energy efficiency organizations, and individual utilities’ development, management, and implementation of voluntary and mandatory appliance and building energy efficiency programs. Mr. Bickel holds a Bachelor’s degree in Biology from Oberlin College and a Masters degree in Biology from the Massachusetts Institute of Technology.

Karen serves as the Just Transition Senior Coordinator, specializing in working with communities to create innovative and sustainable solutions to address energy equity, community building, and growth management needs. She is a member of the American Institute of Certified Planners. Ms. Campblin’s practices stems from her strong belief that creating healthy livable spaces in tandem with strong consideration of the community needs, improves social wealth, access, and overall quality of life.

Matt is a Senior Associate in Utility Policy & Programs at Clean Energy Works. Matt’s prior professional experience spans work as an attorney, a climate change policy and programs manager, an energy justice researcher, and a professional runner and running coach. He also serves as an at-large city council member in Bloomington, Indiana. In his work at the Indiana University Environmental Resilience Institute, Mr. Flaherty led policy and program implementation assisting local governments in advancing climate action and community resilience. His research experience includes energy federalism, energy insecurity, and utility disconnection issues. Mr. Flaherty holds a bachelor’s degree in civil & environmental engineering from the University of Illinois – Urbana-Champaign, as well as a law degree and master’s degrees in public affairs and environmental science from Indiana University – Bloomington.

Dr. Kinslow II works on engagement efforts for equity and commercialization of inclusive utility investments. Dr. Kinslow is the founder of Gemini Energy Solutions, Executive Director of the Racial Equity in Energy Project, and is an adjunct lecturer at Stanford University where he co-teaches the course Racial Equity in Energy. Dr. Kinlsow background as an implementer gives him a unique perspective in the policy space. In addition to being an HBCU alum (NC A&T), Dr. Kinslow earned a doctorate degree from Stanford University by incorporating Bayesian statistics in building science analysis to improve the cost-effectiveness of energy efficiency programs.

Lexie joins the Clean Energy Works team as a Transportation Fellow. Trained as a mechanical engineer with a focus in sustainability, she worked as an engineer for a transport HVAC company before returning to graduate school. Ms. Lyng is in her second year of a M.S. in Science, Technology, and Environmental Policy from the University of Minnesota where she is also pursuing a graduate minor in Urban and Regional Planning. Prior to joining Clean Energy Works, she was selected as a 2022 Climate Corps Fellow for the Environmental Defense Fund where she worked with the City of Charlotte, NC to design an implementation plan to transition their Medium and Heavy-duty fleet to electric vehicles.

Margarita leads Clean Energy Works’ transportation portfolio in the Global South and in the United States. Trained as a chemical engineer from the Universidad Nacional de Colombia with a masters in Environmental Engineering from New Zealand and a diploma in Sustainable Development from India, Margarita has worked for more than two decades in Latin America, China, India, and the United States to reduce local air pollution and global carbon emissions from transportation. Prior to joining Clean Energy Works, she managed the low carbon transport portfolio of the Hewlett Foundation’s Global Climate Initiative. Ms. Parra has served on the Board of Directors of the Silicon Valley Bike Coalition, the Sustainable and Low Carbon Transportation Partnership and Hispanics in Philanthropy. In 2020, Margarita was highlighted as one of 50 global changemakers in the Remarkable Women in Transport publication from Transformative Urban Mobility Initiative (TUMI).