About National Hydropower Association
Who We Are
The National Hydropower Association (NHA) is a nonprofit association dedicated exclusively to promoting the growth of clean, renewable hydropower and marine energy.
Staff
To reach the NHA staff by telephone, please call (202) 897-8580 to be directed. Click on a staff member to reach them via email.
2026 Executive Committee

Alan Michaels
Chair
Alan was born and raised in the Erie Canal town of Pittsford, a suburb of Rochester, New York. After…
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Heidi Wahto
Vice Chair
Heidi is an advocate for hydropower with more than 25 years' experience providing legislative, policy, regulatory and environmental services…
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Suzanne Biddle
Treasurer
Suzanne Biddle is Director of Hydro Generation at the Tennessee Valley Authority. She is responsible for the operation of…
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Chris Rousseau
Secretary
Christopher Rousseau is Vice President of Power Generation at WSB. Chris brings a well-rounded perspective to the WSB Power…
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Jim Hancock
GENERAL COUNSEL
Jim Hancock is a Partner at Balch and Bingham. He is serving as the NHA Board General Counsel.Jim Hancock has…
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Malcolm Woolf
President and CEO
Malcolm Woolf leads the National Hydropower Association (NHA), the national trade association representing America’s water power industry as its…
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Pam Sullivan
Immediate Past Chair
Pam Sullivan is the Chief Operating Officer of American Municipal Power (AMP). Sullivan also serves as president of AMP…
View Profile2026 Board of Directors
- Jay Anders, Past Chair, Southern Adventist University
- Carl Atkinson, Voith Hydro
- Suzanne Biddle, Treasurer, Tennessee Valley Authority
- Maura Brueger, Seattle City Light
- Mike Drain, Central Nebraska Public Power Irrigation District
- Leonard Greene, FirstLight Power
- Scott Hennessey, Brookfield Renewable
- Kelly Larimer, Kleinschmidt Associates
- Jillian Lawrence, Hull Street Energy LLC
- Jeff Leahey, SMI
- Stephanie Maggard, Pacific Gas & Electric
- Chris Mattson, Tacoma Power
- Elizabeth McCormick, Troutman Pepper Locke
- Alec Mesdag, Alaska Electric Light & Power Company
- Alan Michaels, Chair, New York Power Authority
- Alan Peeples, Southern Company
- Preston Pierce, Duke Energy
- Christopher Rousseau, Secretary, WSB
- Erik Steimle, Rye Development
- Pam Sullivan, Immediate Past Chair, American Municipal Power
- Heidi Wahto, Vice Chair, Stantec
Ex Officio Board Member
- Del Shannon, Knight Piésold Consulting (Chair, Board of Directors, Hydropower Foundation)
















