Carol J. Holahan

Partner, Co-Chair, Energy & Climate Practice Group - Boston

Carol Holahan is a partner in Foley Hoag's Energy & Climate practice. She advises large, competitive regional generators and other participants in the wholesale and retail competitive electricity markets on regional policy initiatives, changing environmental regulations, decommissioning and sale of plants, and matters pending before the Federal Energy Regulatory Commission.

In addition to concentrating on traditional fossil fuel generation, Carol’s practice includes renewable energy resources such as large solar storage and biomass and has significant experience in the NEPOOL stakeholder process. She also has considerable experience with matters involving legal challenges to new or existing laws and regulations, environmental permitting, facility siting and assessment or limitations of liability as a result of the sale or retirement of generating facilities.

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  • Suffolk University Law School, J.D., magna cum laude
  • Georgetown University, B.S.



Representative Experience

  • Mediated an urgent interconnection dispute on behalf of the owner of distributed generation resources, obtaining authorization to interconnect in time to avoid significant financial consequences. 
  • Advised a home solar, battery storage and energy services company client on regulatory, policy and wholesale electricity market issues and helped it secure an historic bid to deliver home solar and batteries as a capacity resource in ISO-NE’s Forward Capacity Auction, for the capacity commitment period June 1, 2022- May 31, 2023. The company’s participation in New England’s capacity market is the first time in the country that home solar and battery storage has directly participated alongside traditional generation resources in a wholesale capacity auction.
  • Represented intervenors in a proceeding before the Massachusetts Department of Public Utilities where important issues decided by the Department relating to electric vehicle (“EV”) expansion in the Commonwealth. The Department ultimately struck down the utility’s request both to expand significantly its EV program and to own and operate EV infrastructure.
  • Represented a competitive power producer in a proceeding before the Federal Energy Regulatory Commission opposing the price-suppressive aspects of a competitor’s cost-of-service agreement.
  • Represented a biomass generator before the New Hampshire Public Utilities Commission relative to an amendment to a power purchase agreement necessitated by a change in law.

Professional Experience

  • Senior Director of Government Affairs, Dynegy Inc.
  • Director of Government Affairs, New England Power Generators Association, Inc.
  • Director, Office of Legislative Services, State of New Hampshire
  • Assistant Commissioner, Department of Administrative Services, State of New Hampshire
  • Law Clerk to Hon. Joseph R. Nolan, Massachusetts Supreme Judicial Court


Foley Hoag Alerts & Updates


  • Suffolk University Law Review


  • Northeast Energy and Commerce Association (NECA): Energy Diversity and Inclusion Committee 
  • Former board member, Northeast Energy and Commerce Association (NECA)
  • Former Chair, American Diabetes Association, NH Chapter
  • Former Chair, New Hampshire Bar Association Telecommunications, Energy and Utilities Law Section
  • Member, New England Women in Energy and the Environment
  • 2021 Legislative Update Webinar, Northeast Energy & Commerce Association, October 20, 2021
  • Putting the Pieces Together for Successful Project Development: Overview of the Components of a Coherent Overall Strategy, Renewable Energy in New England Conference, September 25, 2020 
  • Effectively Engaging (DER) Stakeholders in Utility Grid Modernization Plan Development, Solar and Energy Storage Northeast Forum, February 19, 2020 
  • New England Energy Summit, December 2, 2019
  • New Hampshire Energy Summit, September 23, 2019
  • Power Magazine podcast, February 2019
  • New Hampshire Energy Summit, September 24, 2018
  • New England Energy and Commerce Association event, September 13, 2018
  • Exploring the Diversity of Potential Regional Energy Projects, EBC Energy Resources Program, March 18, 2016
  • New Hampshire Annual Energy Summit, October 5, 2015
  • Zoning and Land Use Issues for Wireless Telecommunications Facilities: The Interplay of Federal, State and Local Law, Real Estate Bar of Massachusetts (REBA) 2015 Spring Conference, May 4, 2015
  • The Evolving Energy Landscape, Suffolk University Law School Center for Advanced Legal Studies, April 17, 2014
  • Administrative and Legislative Process and State Agency Adjudicative Hearings, NH Bar Association CLE, April 9, 2014
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Bar Admissions

  • Massachusetts
  • New Hampshire

Court Admissions

  • U.S. Supreme Court