David Gardiner has more than 35 years of experience analyzing and shaping successful domestic and global clean energy and sustainability strategies in both the public and private sectors. As principal of David Gardiner and Associates, he provides high-level strategic guidance to the corporate executives and non-profit leaders with whom the firm works. Among his principal areas of expertise are renewable energy, energy efficiency, thermal energy, clean air policy, sustainable transportation, and forest and land issues. David uses this knowledge, coupled with his strong ability to make sense of complicated issues, to help clients develop informed, thoughtful strategies to maximize bottom line impact.
Prior to founding DGA, David served as the Executive Director of the White House Climate Change Task Force during the Clinton Administration, where he participated in development of domestic policy and in international climate negotiations. As EPA’s Assistant Administrator for Policy, David led EPA’s climate change efforts, as well as programs to reinvent EPA’s approaches to key sectors such as transportation, agriculture, metal finishing and real estate development. Prior to joining the Clinton administration, David was Legislative Director for the Sierra Club in Washington, D.C. David has a Bachelor of Arts with honors from Harvard College.
Jennifer Kefer has 15 years of experience providing legal and political expertise, strategic analysis, and advice to non-profits, corporations and cities on a range of projects related to climate, energy and other environmental issues. Her expertise in industrial efficiency, EPA regulations and compliance, alliance and partnership-building, and policy engagement guides her work leading DGA’s work for the Alliance for Industrial Efficiency—a coalition of business, labor, and non-profit groups supporting policies to advance Combined Heat and Power. Jennifer’s leadership and advocacy have helped the Alliance and other groups successfully press the Environmental Protection Agency to incorporate industrial efficiency and Combined Heat and Power into Clean Air Act rules, such as the carbon pollution New Source Performance Standards for new and existing power plants and the Industrial Boiler MACT. She has helped “put a face on energy efficiency” by organizing events for policymakers to meet with and learn from energy efficiency workers. And she has started a dialogue at Public Utility Commissions about state utility barriers to CHP.
Jennifer’s previous experience includes grassroots education and outreach, federal advocacy, legal research and analysis, and environmental litigation working on behalf of a range of organizations, including Environmental Defense Fund, the Center on Budget and Policy Priorities, and Earthjustice. She earned a B.A. in environmental studies at Brandeis University, a Masters of Environmental Studies at the Yale School of Forestry and Environmental Studies and a J.D. at the Yale Law School.
Senior Research Associate
Alexandra Rekkas has nearly seven years of consulting experience in the energy efficiency and renewable energy fields. As a senior research associate with DGA, Alexandra specializes in corporate sustainability and state and federal energy policy research and analysis. She has authored a variety of reports for DGA and the Alliance for Industrial Efficiency, including a report that ranks all 50 states on their potential for industrial efficiency to reduce carbon emissions and a report on the growing demand for renewable energy among major global manufacturers.
Prior to joining DGA, Alexandra worked at Booz Allen Hamilton, coordinating the funding selection process for advanced energy research and development programs at the Advanced Research Projects Agency – Energy (ARPA-E). She also worked for Cadmus, where she provided evaluation, measurement and verification (EM&V) services to the energy industry. Alexandra earned a B.S. in Animal Science at Cornell University and dual Master’s degrees in Public Affairs and Environmental Science from Indiana University, with concentrations in Environmental Policy and Natural Resource Management and Applied Ecology.
Isabel Harrison has a background in strategic communications and environmental policy, with a particular focus on water and climate policy. At DGA, Isabel is responsible for conducting research and assisting with client project support, as well as leading the firm’s communications efforts related to renewable energy and industrial efficiency. In particular, Isabel has leveraged her communications skills to advance the work of the Alliance for Industrial Efficiency, Americans for a Clean Energy Grid, the Renewable Thermal Collaborative, and DGA’s Customer Revolution campaign to promote the importance of customer choice in the renewable energy marketplace.
Isabel earned a B.A. in environmental studies with minors in political science and Africana studies from Dickinson College. During her time as an undergraduate, Isabel studied and conducted research in Yaoundé, Cameroon, and Copenhagen, Denmark, which propelled her interest in sustainability and clean energy into professional goals.
Chief Operating Officer
Betsy Gardiner, DGA’s Chief Operating Officer since 2008, manages the firm’s day-to-day operations including Human Resources, Finances, IT/Systems, and Project Management. Prior to joining DGA, Betsy founded and managed a patient advocacy consulting firm, helping people with significant health issues navigate the health care system. Her diverse professional background includes work as a Registered Nurse specializing in Hospice Care, a faculty member at the George Washington University Medical School, and NPR Reference Librarian.
Betsy has a Bachelor of Science in Nursing from Boston University and a Master of Science in Library Science from The Catholic University of America.