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 202-805-5057 to be directed.

Joseph LoSasso
Director of Corporate Partnerships and Senior Manager of Industry Engagement
2025 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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Eric Van Deuren
Treasurer
Eric has spent 33 years in the hydro industry, primarily in engineering and most recently in Operations and Maintenance.…
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Sarah Kulpa
Secretary
Sarah is the South Atlantic Area Resources Business Group Manager at HDR. In this role, she is tasked with…
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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 is the President and Chief Executive Officer of the National Hydropower Association.Woolf comes to NHA after decades…
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Pam Sullivan
Past Chair
Pam Sullivan is the Chief Operating Officer of American Municipal Power (AMP). Sullivan also serves as president of AMP…
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2025 Board of Directors
- Carl Atkinson, Voith Hydro
- Suzanne Biddle, Tennessee Valley Authority
- Scott Hennessey, Brookfield Renewables
- Sarah Kulpa, Secretary, HDR
- Kelly Larimer, Kleinschmidt Associates
- Jillian Lawrence, Hull Street Energy LLC
- Jeff Leahey, SMI
- Chris Mattson, Tacoma Power
- Alec Mesdag, Alaska Electric Light & Power Company
- Alan Michaels, Chair, New York Power Authority
- Megan Nesbitt, ANDRITZ Hydro Corp.
- Alan Peeples, Southern Company
- Preston Pierce, Duke Energy
- Christopher Rousseau, Mavel Americas, Inc.
- Charles Sensiba, Troutman Pepper
- Thomas St. John, Thomas St. John Consulting LLC
- Erik Steimle, Rye Development
- Pam Sullivan, Past Chair, American Municipal Power
- Eric Van Deuren, Treasurer, Pacific Gas and Electric Company
- Heidi Wahto, Vice Chair, Stantec