All Reports

We are pleased to present our report for the period October 1, 2025, to March 31, 2026.  In this semiannual period, our audit, evaluation, and investigative activities identified more than $41.7 million in questioned costs, recoveries, fees, and savings; and opportunities for Tennessee Valley Authority (TVA) to improve its programs and operations.  In our semiannual report feature, we discuss TVA’s role and challenges in Energizing the Valley’s and America’s Future. 

We are pleased to present our report for the period April 1, 2025, to September 30, 2025.  In this semiannual period, our audit, evaluation, and investigative activities identified more than $31.4 million in questioned costs; funds to be put to better use; recoveries, fees, and savings; and opportunities for the Tennessee Valley Authority (TVA) to improve its programs and operations.  This report also includes a feature, “40 Years of Making TVA Better,” that looks back at the last four decades—the environment TVA operated in each decade and the Inspectors General t

We are pleased to present our report for the period October 1, 2024, to March 31, 2025.  In this semiannual period, our audit, evaluation, and investigative activities identified more than $75.1 million in questioned costs; funds put to better use; restitutions, recoveries, fees, and fines; and opportunities for the Tennessee Valley Authority (TVA) to improve its programs and operations.

We are pleased to present our report for the period April 1, 2024, to September 30, 2024. In this semiannual period, our audit, evaluation, and investigative activities identified more than $48.4 million in questioned costs; funds put to better use; recoveries, fees, and fines; and opportunities for the Tennessee Valley Authority (TVA) to improve its programs and operations.

We are pleased to present our report for the period October 1, 2023, to March 31, 2024. Serving in our oversight role, the Office of the Inspector General continues to identify risks to operations, ways to save or recover money, make recommendations to improve operations, and prevent and detect fraud, waste, and abuse.

We are pleased to present our report for the period April 1, 2023, to September 30, 2023. In this semiannual period, our audit, evaluation, and investigative activities identified more than $67.7 million in questioned costs; funds to be put to better use; recoveries, fees, and fines; waste/other monetary loss; and opportunities for TVA to improve its programs and operations.TVA relies on contractors and vendors to access materials, build and maintain assets, and innovate new technology to support and advance operations.

We are pleased to present our report for the period October 1, 2022, to March 31, 2023. In this semiannual period, our audit, evaluation, and investigative activities identified more than $41.4 million in questioned costs; funds to be put to better use; and recoveries, fees, and fines; and opportunities for TVA to improve its programs and operations.As TVA begins its 91st year, challenges lie ahead as demand increases and TVA strives to have net-zero greenhouse gas emissions by 2050.

We are pleased to present our report for the period April 1, 2022, to September 30, 2022. The information in this report shows firsthand the dedication and professionalism of the TVA OIG team and our understanding of the importance of providing independent oversight of TVA.

In this semiannual period, our audit, evaluation, and investigative activities identified more than $9.3 million in questioned costs, funds put to better use, recoveries, waste, and opportunities for TVA to improve its programs and operations.

In this semiannual period, our audit, evaluation, and investigative activities identified more than $33.4 million in questioned costs, funds put to better use, recoveries, and waste, as well as opportunities for TVA to improve its programs and operations.