Learn about NREL's director, deputy and associate lab directors, and other key members of leadership.

NREL is managed for the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy by the Alliance for Sustainable Energy LLC, a partnership between Battelle and MRIGlobal. Read about our research fellows, or find research staff by visiting our various program areas.

Director's Office

A photo of Martin Keller.

Martin Keller

Laboratory Director

Alliance President

A photo of Julie Baker.

Julie Baker

Deputy Laboratory Director and Chief Operating Officer

Alliance Senior Vice President

A photo of Peter Green.

Peter Green

Deputy Laboratory Director, Science and Technology, and Chief Research Officer

Alliance Senior Vice President

Science and Technology Associate Lab Directors

A photo of Adam Bratis.

Adam Bratis

Associate Lab Director, Bioenergy Science and Technology

A photo of Johney Green

Johney Green

Associate Lab Director, Mechanical and Thermal Engineering Sciences

A photo of Juan Torres

Juan Torres

Associate Lab Director, Energy Systems Integration

A photo of Bill Tumas

Bill Tumas

Associate Lab Director, Materials, Chemical, and Computational Science


Photo of Douglas J. Arent, Deputy Associate Lab Director, Scientific Computing and Energy Analysis

Douglas J. Arent

Executive Director, Strategic Public-Private Partnerships

A photo of Bill Farris

Bill Farris

Associate Lab Director, Innovation Partnering and Outreach


A photo of Dan Beckley.

Dan Beckley

Associate Lab Director, Facilities and Operations

A photo of Amy Estes.

Amy Estes

Director of Communications

A photo of Arron Gregory.

Arron Gregory

Global Accessibility and Belonging Officer

A photo of Tina Herrera.

Tina Herrera

Chief Human Resources Officer

A photo of Jennifer Logan

Jennifer Logan

Chief Financial Officer

A photo of Donna Louden.

Donna Louden


A photo of James Lyall.

James Lyall

Chief Information Officer

A photo of Dave Mooney.

Dave Mooney

Executive Director,
Institutional Planning, Integration, and Development

A photo of Brent Olson.

Brent Olson

Director, Office of Internal Audit

A photo of Meyer Seligman.

Meyer Seligman

Director, Government Relations

A photo of John Stolpa.

John Stolpa

General Counsel