Our Executive Leadership

With many years of experience serving the Tennessee Valley, our executives oversee all TVA strategy, policy and operations and are responsible for delivering TVA’s mission of service through affordable energy, environmental stewardship and economic development. Learn more about their service backgrounds and dedication to our region.

Jeffrey (Jeff) J. Lyash

Jeff Lyash is president and CEO of the Tennessee Valley Authority. Lyash leads the nation’s largest public utility in its mission of serving the people of the Tennessee Valley to make life better through low-cost energy, environmental stewardship and economic development.

Sue Collins

Sue Collins is senior vice president and chief human resources& communications officer for the Tennessee Valley Authority. She is responsible for developing and leading business-aligned strategies to ensure successful outcomes for both the 10,000 employees who power TVA’s mission and the 10 million customers they serve.

Jeannette M. Mills

Jeannette Mills, executive vice president and chief external relations officer, has over 30 years of commercial and regulatory experience in the energy and utilities sectors, with a strong track record of delivering high-quality customer service and driving economic development.

Sherry A. Quirk

Sherry Quirk, executive vice president and general counsel, directs TVA's legal affairs. She is TVA's designated ethics officer, heads the Office of the General Counsel and directs the Operational and Regulatory Assurance, and Energy and Environmental Policy organizations.

Timothy (Tim) Rausch

Tim Rausch, TVA's chief nuclear officer, has more than 30 years of commercial nuclear experience, including leadership roles in operations, maintenance, engineering, training, quality, process re-engineering and project management.

Michael (Mike) D. Skaggs

Mike Skaggs, who has over 25 years of leadership experience in the utility industry—22 of those years at TVA—currently serves as chief operating officer.

John M. Thomas III

John Thomas, executive vice president and chief financial officer, leads all of TVA's financial services, including Risk Management, Financial Planning and Investor Relations, overseeing annual revenues of more than $11 billion.