Leadership Team

NAGF Leadership Team

The NAGF Leadership Team includes the Board Members and the Chief Executive Officer.

The NAGF is governed by a Board of Directors who have overall responsibility for both the fiduciary accountability, strategic direction and oversight of the day-to-day activities of the organization. The board is comprised of volunteers from member companies.

The CEO represents the Forum within the industry. The CEO is responsible for the day-to-day administration of the NAGF and orchestrating the strategic activities that support the NAGF Business Plan.

Leigh Mulholland

Chairman of the Board

Leigh Mulholland serves as the Chief Compliance Officer at the Kansas City Board of Public Utilities (BPU), where she oversees regulatory compliance, regulatory, environmental policy and compliance, enterprise risk management, insurance, and internal audit for both water and electric operations.

Venona Greaff

Secretary

Venona oversees the NERC compliance program for Occidental Energy’s cogeneration fleet, which includes three Natural Gas fired CHP facilities producing approximately 1,400 MWs that support the manufacturing processes of the adjacent OxyChem facilities. Surplus power, net of the internal load, is delivered to the power grid. Assets are in the TexasRE and SERC footprints.

Clint Nicholson

Treasurer

With over fifteen years of expertise in accounting and financial leadership, and over a decade in the energy space, Clint currently leads the accounting organization for the North and South American Renewable divisions of RWE AG, a global utility leader based in Essen, Germany. In his current role as Senior Vice President and Head of Accounting at RWE Clean Energy LLC, he leads a talented team of 70 professionals overseeing the accounting operations, financial reporting, revenue reporting, and technical accounting: ensuring accurate presentation of subsidiary results and providing critical support to cross-functional teams, including Finance, M&A, and Investment & Valuation.

Dr. James Merlo

Chief Executive Officer

Dr. James Merlo is a human factors engineer with a proven track record in organizational leadership from the battlefield to the boardroom. In his current role as the NAGF CEO, James functions is responsible for the day-to-day work of the NAGF and strategic activities that support the NAGF Business Plan.

Heather Morgan

Board Member

Heather Morgan is the Director of Regulatory Compliance for EDP Renewables where she oversees the compliance program for EDP Renewables’ North American fleet in the United States, Canada, and Mexico.

Mike Gabriel

Board Member

Mike has 35 years of power generation experience and has held positions of increasing responsibility in the U.S. Navy as a submarine officer, at General Electric in Field Service and Product Service divisions and with EthosEnergy. He co-founded Greybeard Compliance Services in 2021.

Tony Berros

Board Member

Tony Berros is currently the Sr Director of Equipment and Reliability Engineering
within NextEra’s Power Generation Division. In this role, he leads a talented cross functional team of subject matter equipment experts in generators, motors, pumps, valves, piping, heat exchangers, reliability engineers, and Six Sigma practitioners that drive the optimal performance and maintenance of our fossil fleet. Tony has held this position since June 2022.

David Costello

Board Member

David Costello has served the electric power industry as a protection and control engineer, corporate leader, author, and speaker for over 35 years. He is an independent consultant, the Chairman of the Board for Electrical Grid Monitoring (EGM), a Board Member for Lester Electrical, and a Board Member for Electroswitch.

Kevin Gresham

Chairman of the Board (Emeritus)

Kevin Gresham has focused on the competitive electricity market transition for more than 20 years. He directs RWE Clean Energy’s interactions with federal and state legislative and regulatory bodies. The Company is one of the nation’s leading renewable energy companies with more than 10 GWs of wind, solar and battery energy storage generation capacity in North America.

Advisory Committee

The Advisory Committee advises the Board of Directors and Senior Officers for strategic oversight and supports the day-to-day activities of the Forum. Current Advisory Committee members include the following member company volunteers:

Bryan Burch – Southern Company
Troy Dahlgren – NAES Corporation
John Grube – Duke Energy
Blake Huddleston – ENGIE North America
Richard Lutz – Ameren Missouri

Richard Machado – New York Power Authority
Alison Mackellar – Constellation Energy Generation
James Alexander Witter – Entergy Power Generation
Trevor Ross – Capital Power
Don Hargrove – OGE

NAGF Leadership Team

Leigh Mulholland

Venona Greaff

Clint Nicholson

Dr. James Merlo

Heather Morgan

Mike Gabriel

Tony Berros

David Costello

Kevin Gresham

Advisory Committee

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