Tennessee Valley Authority

As part of the OIG's annual audit plan, we audited $172.6 million in costs billed to the Tennessee Valley Authority (TVA) by Medco Health Solutions, Inc. (Medco), for prescription drug benefits services from January 1, 2012, through December 31, 2013, under Contract No. 00077345. The contract...

The objective of this evaluation was to determine if the Tennessee Valley Authority's (TVA) delivered costs of fuel included all appropriate costs and were calculated consistently across commodities. We hired a consultant, Synapse Energy Economics, Inc. (Synapse), to (1) review TVA's delivered cost...

In 2008, the Tennessee Valley Authority's (TVA) Office of the Inspector General (OIG) performed an audit (2007-11348, Information Services Organizational Effectiveness, March 27, 2008) on the effectiveness of the Information Technology (IT) organization and made several recommendations for...

The OIG audited costs billed to the Tennessee Valley Authority (TVA) by ABB, Inc. (ABB), for providing large and medium power transformers under Contract No. 4645. Our audit included $83.3 million in costs paid by TVA between June 1, 2011, and March 31, 2015. Our objective was to determine if the...

At the request of the Tennessee Valley Authority (TVA) Supply Chain, the OIG examined the cost proposal submitted by a contractor for construction management services. Our objective was to determine if the contractor's cost proposal was fairly stated for a planned $100 million contract. In our...

At the request of the Tennessee Valley Authority (TVA) Supply Chain, the Office of the Inspector General examined the cost proposal submitted by a contractor, for engineering, design, and construction support for Holistic Industrial Wastewater Treatment Program services at TVA fossil plants. Our...

At the request of TVA Supply Chain, the OIG examined the cost proposal submitted by a contractor, for engineering, design, and construction support for Holistic Industrial Wastewater Treatment Program services at TVA fossil plants. Our objective was to determine if the cost proposal was fairly...

The OIG audited the hydroelectric dam network architecture at a TVA facility to identify security zones and perimeters and analyze network devices and the physical infrastructure for compliance with policies, procedures, and best practices. We found TVA has used proven best practices in the design...

The OIG found the implementation of wireless local area network physical and logical access controls generally followed recommended best practices. However, we found TVA could strengthen wireless security and improve unauthorized wireless access point detection.(Summary Only)

Over the last several years, there has been anecdotal information indicating a high level of turnover among the Tennessee Valley Authority's (TVA) executives. We initiated this audit to review the costs associated with the hiring and dismissal of executives brought in from outside TVA since the...