Mr. Gregory Aliff is Vice Chairman and Senior Partner, Energy & Resources, Deloitte LLP.  Mr. Aliff is also the leader of Deloitte’s Energy and Natural Resources Management services. For 10 years, Mr. Aliff served as the Firm’s U.S. Energy & Resources Leader. The U.S. Energy & Resources Group is responsible for the coordination of Deloitte’s audit, tax, consulting and financial advisory services to the U.S. energy and resources industry.

A certified public accountant (CPA), Mr. Aliff has provided professional services in accounting and auditing, regulatory strategy development, rate case preparation, expert testimony on a variety of accounting and financial subjects, and acquisition due diligence services. Mr. Aliff has testified as an expert witness before a number of state regulatory commissions and has also appeared before the Canadian National Energy Board and the U.S. Tax Court.

A member of the Board of Directors of the United States Energy Association, Mr. Aliff is co-author of the annually updated industry reference book Accounting for Public Utilities, published by Matthew Bender since 1983. His articles and commentary have appeared in Electric Light & Power, Electric Perspectives, The National Interest and Public Utilities Fortnightly. During his 34-year career he has appeared on industry programs sponsored by organizations such as the American Gas Association, Edison Electric Institute, the National Association of Regulatory Utility Commissioners and the United States Energy Association.

A graduate of Virginia Polytechnic Institute and State University, he holds both a Bachelor of Science in Accounting and a Masters in Business Administration.