Barclay Damon
Barclay Damon

Arthur W. Adelberg

Arthur W. Adelberg


p: 202-380-6514

f: 202-595-0993

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Washington Office

1325 G Street NW
Suite 500
Washington, D.C. 20005

Arthur Adelberg is a member of the firm's Regulatory Practice Group. He brings to his practice the experience of having been Chief Legal Officer of an investor-owned public utility, Senior Counsel to the U.S. Senate Committee on Homeland Security, a partner in three major law firms, and a litigator with the Federal Trade Commission. In these roles he has developed extensive knowledge of a range of legal practice areas including energy, antitrust, homeland security, and  government contracts. He has appeared before federal trial and appellate courts, federal and state regulatory agencies, Executive Branch departments, and Congressional committees.

A significant number of Arthur’s cases involve the application of economic principles in regulatory contexts. He has represented coalitions of railroads in proceedings to establish guidelines for revenue adequacy, maximum rates and cost-of-capital. More recently, he has represented electric utilities in disputes before the Federal Energy Regulatory Commission (FERC) over allocation of the cost of developing high-voltage transmission lines as well as in state public utility rate cases. He has also testified as an expert witness on electric utility rate design, damages for breach of a power purchase agreement, valuation of a hydro-electric facility, and prudency of an electric utility’s power procurement activities.

In recognition of the breadth of his knowledge, Arthur has been an invited witness before several Congressional committees and a speaker at numerous public conferences. He has also conducted training on antitrust and energy law compliance for corporate legal and marketing departments.

Arthur received his bachelor's degree from Yale University and his law degree from the University of North Carolina at Chapel Hill School of Law. He is admitted to practice in the District of Columbia, Connecticut and Maine.

Representative Experience

  • Representing an energy marketing firm in a FERC investigation of non-compliance with the Federal Power Act.
  • Representing a homeland security consulting firm in a bid protest before the General Accountability Office.
  • Representing a vertically integrated power company in FERC Order No. 1000 compliance proceedings.
  • Representing an electric utility in securing funding from the U.S. Department of Energy.
  • Advising a major owner of hydro-electric facilities in water rights and federal preemption issues.

Practice Areas


  • Yale University, B.A., 1973
  • University of North Carolina at Chapel Hill School of Law, J.D., 1976

Admitted To Practice

  • District of Columbia, 1977
  • Connecticut, 1976
  • Maine, 1985
  • U.S. Court of Appeals, District of Columbia Circuit
  • U.S. Court of Appeals, 3rd Circuit
  • U.S. Court of Appeals, 4th Circuit
  • U.S. Court of Appeals, 5th Circuit
  • U.S. Court of Appeals, 7th Circuit

Memberships & Affiliations

  • Energy Bar Association

Speaking & Publications

Prior Experience

  • Hiscock & Barclay, LLP, Partner
  • Loeb & Loeb LLP, Of Counsel
  • Day Pitney LLP, Partner
  • Senate Committee on Homeland Security and Government Affairs for the Special Investigation of Hurricane Katrina, Senior Counsel
  • CMP Group, Inc., Executive Vice President and Chief Legal Officer
  • Pepper Hamilton, LLP, Partner