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Mark Perlis is a seasoned energy and environmental attorney with a broad-based federal regulatory and litigation practice encompassing all aspects of the electric utility industry.  He regularly represents clients in adjudicatory and rulemaking proceedings before the Federal Energy Regulatory Commission and state public utility commissions, and in stakeholder proceedings conducted by ISOs and RTOs across the country.  Mr. Perlis represents independent power producers, power marketers, traditional electric utilities, and renewables developers.  Mr. Perlis specializes in regulatory issues associated with the design of and participation in organized electric markets, including energy and capacity markets, generation interconnection, and transmission service.

  • FERC counsel to Calpine Corporation in connection with energy and capacity market structures, interconnection, financing, development, and operation of electric generating facilities in California.
  • Advised NaturEner USA on its 189 MW wind energy project located in Rim Rock, Montana, in connection with obtaining FERC approval of a first-of-its-kind tax equity investment by a California electric utility, the sale of renewable energy credits and power to separate off takers, and procurement of interim and permanent transmission arrangements for the project.
  • Represented trade association in successfully challenging the California Independent System Operator’s backstop capacity market mechanism at FERC and negotiating multiparty settlement.
  • Led representation of Duke Energy during the California energy crisis, including litigation of the FERC EL00-95 Refund Proceeding, multiple federal and state enforcement investigations, and negotiation of a global settlement.
  • Represented solar developer in successfully opposing a utility’s petition at FERC to terminate its mandatory purchase obligation under the Public Utility Regulatory Policies Act.

Memberships and Affiliations

  • Electricity Regulation Committee, Vice Chair (2007)
  • Energy Bar Association, Member (1992-present)
  • Environmental Markets Association, Board of Directors, and Vice President (1998-2001); Member (1997-present)
  • American Bar Association, Section of Environment, Energy, and Resources, Special Committee on Climate Change and Sustainable Development, Vice Chair (1999-2000)

Previous Experience

  • U.S. Department of the Treasury, Office of the Tax Legislative Counsel, Attorney Advisor (1983-1987)
  • Chambers Global, Energy: Electricity (Regulatory & Litigation) (2014-2019; 2021)
  • Chambers USA, Energy: Electricity (Regulatory & Litigation) (2006-2020)
  • Best Lawyers in America, Energy Law (2006-2020)
  • Legal 500 US, Energy - Renewable/Alternative (2016)
  • Legal 500 US, Energy - Regulatory (2016)
  • Legal 500 US, Environment - Litigation (2016)
  • Washington DC Super Lawyers, Energy & Natural Resources (2008-2020)