Director Qualifications and Experience

Dr. Coben has served as our Interim President and Chief Executive Officer since November 2023. His experience as a chief executive officer and investor in the energy industry brings a valuable cross-section of skills to the Board. He brings to the Board significant managerial, strategic, and financial expertise, particularly as it relates to company financings, transactions and development initiatives. In addition, as the founder of the Sustainable Preservation Initiative and current Executive Director of the Escala Initiative, he is uniquely positioned to understand and provide insight to the Board on matters relating to human rights and inequality, and as founder of Catalyst Energy Corporation, one of the first alternative energy companies in the United States, he gained extensive experience in the investment and development of sustainable energy projects.

Business Experience

• Interim President and Chief Executive Officer, NRG Energy, Inc. (November 2023 to present)
• Executive Director, Escala Initiative (formerly Sustainable Preservation Initiative) (2011 to present)
• Consulting Scholar, University of Pennsylvania Museum of Archaeology and Anthropology (2012 to present)
• Chairman and Chief Executive Officer, Tremisis Energy Corporation LLC and its affiliates (2003 to 2017)
• Senior Principal, Sunrise Partners L.P. (January 2001 to January 2004)
• Independent Consultant (1997 to January 2001)
• Chief Executive Officer, Bolivian Power Company (1994 to 1996)

Other Public Company Boards

• Freshpet, Inc. (November 2014 to present)