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John DeTore focuses his practice on representing large energy companies before regulatory agencies and courts throughout New England and New York. His representations include more than 20 major energy projects involving billions of dollars in Massachusetts, Connecticut, and New York, including 11 cases before the Massachusetts Supreme Judicial Court.


  • Energy
  • Government relations
  • Regulatory strategies
  • Public power
  • Telecommunications



  • Represented the first three power plant projects to be permitted by the Massachusetts Energy Facilities Siting Board (EFSB) and the first merchant power plant to be licensed in Massachusetts. Based on these matters, the EFSB modified their standards to meet the needs of these types of facilities.°
  • Represented an emergency generation facility in receiving all necessary approvals in time to be in service to help prevent severe blackouts in southeastern Connecticut.°
  • Served as counsel to a large, well-known higher education institution in the Boston area in connection with various energy issues including defense against imposition by the Massachusetts Department of Public Utilities of an onerous fee relating to a new general facility.°
  • Obtained all regulatory approvals for the three most recent large power plants in Massachusetts.°
  • Represented competitive suppliers in both formal proceedings and informal settlement processes.°

°The above representations were handled by Mr. DeTore prior to his joining Greenberg Traurig, LLP.

Recognition & Leadership

  • Listed, The Best Lawyers in America, 1993-2024
    • Energy Law, 1993-2024
    • Administrative / Regulatory Law, 2023- 2024
    • Energy Regulatory Law, 2023-2024
  • Team Member, a Law360 "Environmental Practice Group of the Year," 2022
  • Listed, Chambers USA Guide, Energy & Natural Resources, 2021-2023
  • Listed, The Legal 500 United States,
    • "Energy> Energy regulation: Electric Power," 2023
    • "Industry Focus - Energy Regulation: Conventional Power," 2020-2022
    Listed, Boston magazine, "Top Lawyers - Energy Oil & Gas," 2022-2023
  • Recognized, The Boston Globe, “Boston’s Top Lawyers,” 2012
  • Rated, AV Preeminent® 5.0 out of 5.0

°AV®, AV Preeminent®, Martindale-Hubbell DistinguishedSM and Martindale-Hubbell NotableSM are certification marks used under license in accordance with the Martindale-Hubbell® certification procedures, standards and policies.


  • J.D., Boston College Law School, 1977
  • B.A., Harvard College, 1973
  • Massachusetts