Tennessee Valley Authority OIG

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...

The Tennessee Valley Authority (TVA) Nuclear organization has a vision to be the top nuclear fleet by the end of fiscal year 2025 and an initiative to sustain top quartile performance . Selection of suppliers responsible for maintenance or system upgrades within TVA’s nuclear fleet can affect TVA’s...

In June 2019, the Tennessee Valley Authority (TVA) completed an Integrated Resource Plan and recommended the expansion of solar generating capacity by up to 14,000 megawatts (MW) by 2038. According to TVA’s fiscal year 2020 Sustainability Report, TVA set a sustainability aspiration to achieve 10,000...

The Tennessee Valley Authority’s (TVA) Power Supply Plans (PSPs) combine optimized capacity and generation plans that balance load and power supply and provide detailed dispatch and generation forecasts used in resource decisions, budgeting, and analysis. PSPs incorporate key planning assumptions...

We performed an audit of costs billed to the Tennessee Valley Authority (TVA) by GE Vernova International, LLC (GEVI) for parts and services for the covered units at the Allen Combined Cycle Plant as part of a long-term service agreement under Contract No. 11930. Our audit objective was to determine...

According to Tennessee Valley Authority (TVA) Standard Programs and Processes 26.003, Community Contributions, TVA helps enable a better quality of life in the communities it serves (1) through its work in energy, the environment, and economic development and (2) by supporting educational and...

The Tennessee Valley Authority (TVA) performs an annual cost of service study that, according to Commercial Energy Solutions Standard Programs and Processes 21.7.3, Cost of Service, “is used to estimate the cost to TVA of serving particular classes of customers and to compare that cost to the...

At the request of the Tennessee Valley Authority’s (TVA) Supply Chain, we examined the cost proposal submitted by a company for engineering and construction services in connection with the validation phase of TVA’s Small Modular Reactor and Clinch River Nuclear project. Our examination objective was...

At the request of the Tennessee Valley Authority (TVA) Supply Chain, we examined the contractor’s cost proposal for work in connection with the validation phase of TVA’s Small Modular Reactor and Clinch River Nuclear project. Our examination objective was to determine if the cost proposal was fairly...