Company: TVC
Filing Date: 2025-11-13
Form Type: 10-K
Source: 0001376986-25-000056
Chunk: 33

Company: Tennessee Valley Authority
Filing Date: 2025-11-13
Form: 10-K
Item: Item 6
Chunk 33
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 2025, TVA had spent $278 million on installation of the fiber optic lines and expects to spend an additional $22 million through 2027.

System Operations Center  

A new system operations center was approved by the TVA Board.  The new secured facility is being built to accommodate a new energy management system and adapt to new regulatory requirements, and will improve reliability, have improved physical security from the previous center, and be flexible to help accommodate operational growth requirements, including future renewables.  Construction of the facility was completed in FY 2025, and the facility is expected to be fully operational in CY 2026.  As of September 30, 2025, TVA had spent $326 million on the project and expects to spend an additional $4 million.

Energy Management System  

A new energy management system was approved by the TVA Board.  As the current energy management system is nearing the end of its life cycle, this project will replace the existing analog system with a digital system.  The new digital system will have higher capacity and speed for communications with the TVA grid and for inputs from monitoring equipment, will network the new control center with existing locations, and will enable better remote visibility and control to help mitigate reliability challenges.  The system is expected to be complete in CY 2027.  As of September 30, 2025, TVA had spent $95 million on the project and expects to spend an additional $13 million.

Sequoyah Nuclear Plant Unit 2  

Sequoyah Unit 2 tripped on July 30, 2024, due to failure of the main generator.  As a result, the project to restack and rewind the main generator was pulled forward in the Nuclear Life Extension ("NLE") plan.  In June 2025, the unit returned to service, and as of September 30, 2025, TVA had spent $133 million related to this project and could spend up to an additional $8 million.  In October 2025, TVA received $48 million of property loss insurance proceeds related to this project.

Coal Combustion Residuals

     Coal Combustion Residuals Facilities.  TVA is pursuing a programmatic approach to address environmental impacts related to the previous storage, use and disposal of its CCR in accordance with applicable law (“CCR Program”).  Under the CCR Program, TVA performed stability remediation of all at-risk facilities,