Severin Borenstein is an American economist known for his work in energy economics and industrial organization. He is a professor at the University of California, Berkeley and has served as the faculty director of the Energy Institute at Haas. His research often focuses on the economics of electricity markets and the impact of regulation on energy prices. Borenstein has contributed significantly to understanding how market structures affect competition and pricing in the energy sector. He has also been involved in policy discussions related to renewable energy and climate change, providing insights that help shape energy policy in the United States.