Tennessee Valley Authority OIG

In January 2023, the Tennessee Valley Authority (TVA) issued a record of decision to retire and demolish its Cumberland Fossil Plant and replace one of its two units with a natural gas plant. Subsequently, TVA implemented the Cumberland Energy Solution (CES) project to construct a 1,450-megawatt...

The Tennessee Valley Authority's (TVA) transmission planning process includes assessing the capacity of the transmission system to reliably deliver power from generation resources to customer loads. Due to the importance of ensuring TVA’s transmission system can accommodate its generation strategy...

The Tennessee Valley Authority’s (TVA) 5-year Enterprise Technology Plan seeks to transform the way TVA does business through technology and digital innovation. Digital Finance is one of seven efforts within this multi-year initiative, aimed at modernizing and streamlining TVA’s financial systems...

The Tennessee Valley Authority (TVA) provides credit cards, known as the TVA One Card, to its employees to make purchases for TVA business, such as materials and supplies, travel, meetings and events, fuel for rental vehicles, management expenses, and services. TVA transitioned from separate...

The Tennessee Valley Authority (TVA) has set a goal of increasing its solar capacity to 10,000 megawatts by 2035 . Due to issues in the solar industry resulting in project delays and price increases, we performed an audit of TVA’s solar power purchase agreements (PPAs). Our audit objectives were to...

The Office of the Inspector General performed an audit of the Tennessee Valley Authority’s (TVA) cybersecurity vulnerability management program. Our objective was to determine if TVA is compliant with the Cybersecurity and Infrastructure Security Agency (CISA) Binding Operational Directive (BOD) 22...

At the request of the Tennessee Valley Authority’s (TVA) Supply Chain, we examined the cost proposal submitted by a contractor for the New Caledonia Gas Plant. Our examination objective was to determine if the cost proposal was fairly stated. The contractor proposed a target cost estimate (TCE) of...

We performed an audit of the costs billed to the Tennessee Valley Authority (TVA) by Burns & McDonnell Engineering Company, Inc (B&M) under Contract No. 15388 for engineering services. Our audit objectives were to determine if (1) costs were billed in accordance with the contract terms, (2) the...

The Tennessee Valley Authority (TVA) currently operates 101 natural gas- and fuel oil-fired generators at 18 sites. During 2020, we performed an evaluation of overtime worked at TVA gas plants and found a significant amount of overtime was being worked by employees at some plants. In response to...

The Tennessee Valley Authority (TVA) currently operates 29 power-generating hydro plants and one pumped-storage plant. Between June 1, 2022, and May 31, 2024, employees at TVA’s hydro plants were paid a total of $71.7 million. Of this $71.7 million, $15.1 million (21 percent) was paid for 187,579...