Samuel T. Walsh



Sam Walsh is a partner at Harris, Wiltshire & Grannis LLP, focusing his practice on representing companies in the electric, natural gas, and biofuels sectors before federal and state agencies, and in the federal courts.

Mr. Walsh’s experience advising clients across the energy sector and at the highest levels of government has positioned him to confront the novel and complex problems facing an industry in flux. Until recently, Mr. Walsh served as Deputy General Counsel for Energy Policy at the Department of Energy (DOE). During his tenure at DOE, he was responsible for legal matters relating to the Department’s electric, fossil energy, and civilian nuclear programs. In that role, Mr. Walsh oversaw the legal aspects of the Department’s authority over exports of liquefied natural gas (LNG), and developed deep experience with electric transmission development, carbon capture and sequestration projects, spent nuclear fuel, energy efficiency, and climate programs.

Prior to his government service, Mr. Walsh was a member of the energy regulatory practice group at a major international law firm based in Washington D.C., where he represented a diverse range of clients before the Federal Energy Regulatory Commission and the Department of Energy.

Mr. Walsh received his law degree magna cum laude from Harvard University, where he served as Articles Chair of the Harvard Law Review. He received his M.P.A. from Kennedy School of Government and received his B.A., magna cum laude, from Yale University. He clerked for the Hon. David S. Tatel of the U.S. Court of Appeals for the D.C. Circuit.


Harvard Law School, J.D., magna cum laude

Harvard University, Kennedy School of Government, M.P.A.

Yale University, B.A., magna cum laude


Hon. David S. Tatel, U.S. Court of Appeals for the D.C. Circuit



At HWG, we’re always looking for smart, talented people to add to our team.


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