Skip to content
Debra J. Duncan
Debra J. Duncan
Counsel — Tax
Counsel — Tax

Debra J. Duncan

Debra J. Duncan

2200 Pennsylvania Avenue NW
Suite 500 West
Washington, DC 20037

Debra J. Duncan

Clean Energy & Renewables

  • Blackstone Credit and ClearGen, a Blackstone Credit portfolio company, in the formation of a strategic partnership between ClearGen and GreenStruxure, a Schneider Electric and Huck Capital joint venture, to develop, own and operate up to $500 million of renewable energy microgrid systems for C&I customers

  • Buckeye Partners and Nala Renewables in their acquisition of a majority interest in Swift Current Energy, a leading North American clean energy development and investment platform with a pipeline of over 6 GW of solar, wind and energy storage projects

  • Goldman Sachs Renewable Power (a $4 billion fund), in its:

    • Approximately $350 million acquisition from Marina Energy, a subsidiary of Southern Jersey Industries, of its solar portfolio comprised of 76 distributed solar energy projects with total capacity of 204 MW
    • Acquisition of a 142-MW portfolio of solar power generation assets from a subsidiary of Macquarie Infrastructure Corporation
    • Acquisition of a series of solar projects developed by a major utility company
    • Ongoing investments, acquisitions and finance arrangements in renewable energy projects
  • Renewable and Sustainable Energy Fund of The Carlyle Group in its $150 million commitment to partner with Alchemy Renewable Energy to develop, acquire, finance, and operate solar power generation projects throughout the U.S.

  • A private equity special situations fund in its:

    • Approximately $1 billion back-levered acquisition (by way of a joint venture) of a portfolio of wind and solar assets from a global conglomerate
    • Acquisition of interests in 16 wind energy projects through a joint venture with the subsidiary of a global banking institution
    • Various acquisitions and divestitures of tax equity and other interests in solar assets
  • Pattern Energy Group in a series of strategic transactions that include a $724 million long-term commitment by an investment entity managed by Riverstone

  • A U.S. financial institution in connection with tax equity investments in refined coal facilities

  • Underwriters to Sunnova Energy International Inc., a residential solar and energy storage service provider, in its $168 million initial public offering of common stock

  • Underwriters to Sunnova Energy International Inc. in its $115 million public offering of common stock by selling stockholders

  • Hoegh LNG Partners LP in its $221 million initial public offering of common units

  • International Paper Co. in the transfer of its $1.8 billion North American consumer packaging business to a joint venture with Graphic Packaging Corp. 

  • Underwriters to 8point3 Energy Partners LP in its $118 million public offering of common units


  • George Washington University, J.D. with highest honors, 1986 (Member of the editorial board, George WashingtonLaw Review; Order of the Coif)
  • College of William and Mary, B.A., 1978
  • Legal 500 U.S., Domestic Tax: Central, 2012
  • Member: Committee on Partnerships of the American Bar Association’s Section of Taxation
  • Virginia
  • District of Columbia
  • U.S. Tax Court
  • U.S. Court of Federal Claims
  • U.S. District Court for the Eastern District of Virginia
  • Eastern District of Virginia Bankruptcy Court
  • U.S. Court of Appeals for the Third and Fourth Circuits
  • “Wind Energy: The Art of Coping with Uncertainty,” NYU School of Law, January 17, 2018 (speaker)
  • “Relief for Taxpayers Affected by Hurricane Harvey,” V&E Tax Update E-communication, August 31, 2017 (co-author)
  • “Guide to the American Power Act,” V&E Climate Change E-communication, May 26, 2010 (co-author)
  • “ARRA Launches Obama’s Green Revolution,” Petroleum Economist, March 2009 (co-authored with Stephen Angle, John Decker, Price Manford, and Christine Vaughn)
  • “Major Tax Relief for Energy Projects,” The Bureau of National Affairs’ Tax Planning International: Indirect Taxes, October 2008 (co-authored with Greg Staple, Stephen Angle, Larry Nettles and Darrick Eugene)
  • “Partnerships-Taxable Income; Allocations of Distributive Shares; Capital Accounts,” Tax Management Portfolio (co-author)
  • Speaker on tax aspects of renewable energy investments