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Jared des Rosiers' practice focuses on complex energy regulatory, infrastructure development and siting, and litigation matters before the Maine Public Utilities Commission (MPUC), the Federal Energy Regulatory Commission (FERC), and state and federal courts around the country.

Jared strives to develop a comprehensive strategic plan for success in collaboration with his clients and then to efficiently implement that plan through advocacy, negotiation and creativity. When litigation is necessary, Jared uses discovery, witness preparation, motion practice, and trial, as necessary, in order to achieve his clients' business, regulatory, and policy goals in the most cost-effective manner possible.

Jared has broad experience on energy regulatory, siting, and investigation matters including representation of clients with respect to issues of transmission development and siting, rate recovery and design, ISO/RTO participation and market design, enforcement investigations, power purchase agreement disputes, and smart grid implementation. Jared is also the leader of the firm's Energy Practice Group and a member of the firm's Management Committee.

Contact & Links


  • Merrill's Wharf
    254 Commercial Street
    Portland, ME 04101


  • University of Notre Dame, J.D., summa cum laude, graduated 1992
  • University of Notre Dame, B.S., graduated 1989

Bar Admissions

  • United States, Maine


  • Cumberland County and Maine State Bar Associations - Member
  • Energy Bar Association - Member

Court Admissions

  • U.S. Court of Appeals for the Second Circuit
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. Court of Federal Claims
  • U.S. District Court for the District of Maine
  • U.S. Supreme Court

Pierce Atwood LLP
Headquarters: Portland, Maine

56 The Best Lawyers in America® awards

12 Best Lawyers: Ones to Watch® in America awards

Best Law Firms Badge Full Firm Profile

Lawyer of the Year Badge - 2022 - Energy Law Lawyer of the Year Badge - 2020 - Energy Law Lawyer of the Year Badge - 2018 - Energy Law

Named "Lawyer of the Year" by Best Lawyers® for:

  • Energy Law, Portland, ME (2022)
  • Energy Law, Portland, ME (2020)
  • Energy Law, Portland, ME (2018)

Recognized in The Best Lawyers® in America 2023 for work in:

  • Commercial Litigation
  • Energy Law


  • Included since 2010 in The Best Lawyers in America® for Commercial Litigation and Energy Law
  • Recognized in Chambers USA in the area of Energy & Natural Resources.
  • Named by Super Lawyers as a top rated lawyer in Maine for Energy & Natural Resources since 2012.

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