Donald C. Liddell - Attorney

Don Liddell specializes in energy business transactions involving a broad array of energy-related products and services bringing to our clients 30 years of experience in the private and government sectors of the industry.  Mr. Liddell was formerly Assistant General Counsel for Sempra Energy.

With expertise in energy project development, engineering and construction, start-up companies, and both retail and wholesale gas and power contracts, he has managed legal teams supporting all aspects of Sempra's retail and wholesale energy businesses.  These included gas and power marketing and related services such as energy efficiency retrofits, and energy facility ownership and management.  He also served on the Board of Directors of the Independent Energy Producers Association from 1990 to 1997, including a term as Chairman.

He has a wealth of experience handling energy business transactions, having structured a variety of contracts and business systems, from standardized contracts that facilitate high-volume deal flow, to complex and unique stand-alone transactions.  Prior to joining Sempra's predecessor companies in 1982, he was counsel to the United States Department of Energy's San Francisco office, responsible for government contracts, grants and cooperative agreements implementing federal alternative energy research, development, demonstration, and loan guaranty programs, as well as civilian and military high-energy physics programs conducted by the national laboratories located in the western United States.

Mr. Liddell has served as an Adjunct Professor of Law at the University of San Diego School of Law, helping to create and teaching a course in Energy Law and Policy sponsored by the Energy Policy Initiatives Center of the USD School of Law.
He received an LL.M from the London School of Economics, his J.D. from the University of California Hastings College of the Law, and his B.A. with honors from San Diego State University.

Selected Achievements:

  • Assisted Stirling Energy Systems with successfully negotiating a 20-year power purchase agreement with Southern California Edison and San Diego Gas & Electric to develop the world's two largest solar power projects in the desert region of southern California. Under the agreement with Edison, Stirling will deliver 500 MW of solar power from the SES Solar One project, with an option to expand to 850 MW. Under the agreement with SDG&E, Stirling will deliver 300 MW from the SES Solar Two project, with the ability to expand to 900 MW. Together, the two projects will dwarf the combined capacity of all existing solar power plants.

  • Advised federal and local public entities and ESCO developers in modifying California's Self- Generation Incentive Program to successfully CHP and hybrid wind and solar alternative energy projects come on line.

  • Negotiated a long-term contract to develop a start-up biomass pelletization project to provide sustainable energy fuel supply to co-fire fossil fueled electric generation projects in Europe.

  • Advised start-up energy services companies in the United States, Canada, the United Kingdom, Germany, and Spain.

  • Developed standard retail natural gas and electricity supply contracts and modular administrative systems that are models for the industry.

  • Negotiated design/build construction contracts for the energy services field, including the Federal Drug Administration's largest facility at Whiteoaks, Maryland, and many others.

  • Assisted with build-own-operate energy facility outsourcing agreements for the Venetian Resort in Las Vegas, and operations and maintenance contracts with the Staples Center in Los Angeles, and many others.


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