Peter practices Of Counsel to Preti Flaherty's Energy Law Group from the firm's Concord, NH and Boston, MA offices. His practice has a nationwide range and its scope involves wholesale power market design, energy project development, appearances before state and federal regulatory commissions, legislative initiatives, appellate litigation and energy transactional and contractual work. Mr. Brown was the principal draftsman and negotiator of the “Joint Development Agreement” between the State of Rhode Island and Deepwater Wind.  This agreement led directly to the development of the offshore Wind Block Island project.  Brown's legal career also includes serving as Director of the Energy Law Institute, Chief Counsel to the Pennsylvania Public Utilities Commission, First Deputy Attorney General at the Pennsylvania Office of Attorney General. He has also served as a Professor of Law at the University of New Hampshire School of Law and as an Associate Professor of Law at Villanova Law School

Practice Areas


  • Bowdoin College (A.B., cum laude, 1960)
  • Columbia University School of Law (J.D., 1963)


  • New Hampshire
  • Massachusetts
  • New York
  • Pennsylvania
  • U.S. Supreme Court

Professional Affiliations

  • Appointee/Member: Hearing Committee of the Attorneys Disciplinary Committee of the Supreme Court of New Hampshire

Honors & Awards

  • Consistently recognized in Best Lawyers in America for Energy Law

Civic Involvement

  • New Hampshire Supreme Court
    • Attorney Disciplinary System, Hearing Committee, 2010-Present