David Mills named Vice President of Energy Supply Operations

New executive position to lead utility’s energy trading, transmission and natural gas supply functions

BELLEVUE, Wash. (Sept. 27, 2012) — Puget Sound Energy has promoted David Mills to the new position of Vice President of Energy Supply Operations. Effective Oct. 1, Mills will leave his current position as director of Energy Supply and Planning to lead a team that will manage energy trading and transmission services, including the load office and natural gas supply functions. He will report to Paul Wiegand, Senior Vice President of Energy Operations.

“The environment in which we operate is more dynamic than ever before, with energy supply, transmission and trading being no exception,” said PSE President and Chief Executive Officer Kimberly J. Harris. “David’s skills and experience will help us anticipate our customers’ changing needs as new technologies and new opportunities beyond traditional electric and natural gas service emerge.”

Mills joined PSE in 2002 and is currently on the Board of Directors for the Pacific Northwest Utilities Conference Committee, the Executive Committee of Columbia Grid and the Executive Committee of the Western Systems Power Pool. Prior to PSE, David was with the Bonneville Power Administration and served in the U.S. Navy.

About Puget Sound Energy

Washington state’s oldest local energy company, Puget Sound Energy serves 1.1 million electric customers and more than 750,000 natural gas customers in 11 counties. A subsidiary of Puget Energy, PSE meets the energy needs of its customers, in part, through cost-effective energy efficiency, procurement of sustainable energy resources, and far-sighted investment in energy-delivery infrastructure. PSE employees are dedicated to providing great customer service that is safe, dependable and efficient. For more information, visit www.PSE.com.

Media Contact

Grant Ringel, 1-888-831-7250