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MISO Long-Term Nodal Insights

LCG, November 12, 2025--LCG Consulting is excited to announce the release of the MISO 2034 Data Model, built from the latest MISO Transmission Expansion Plan (MTEP). This powerful, nodal-level data model offers a forward-looking view of generation, transmission, and load forecasts across the MISO region—empowering energy professionals to explore the grid of the future with confidence.

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Xcel Energy and "Allies" Request Retirement Extension for Comanche Generating Station Unit 2

LCG, November 12, 2025--Xcel Energy, together with the Utility Consumer Advocate (UCA), Colorado Energy Office (CEO), and Trial Staff of the Public Utilities Commission (PUC), filed a petition on November 10 requesting Commission approval to keep Comanche Generating Station Unit 2 available for up to one additional year after its currently planned retirement on December 31, 2025.

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Industry News

TVA Announces Expected Cost Increase and New Schedule for Watts Bar Nuclear Reactor

LCG, April 6, 2012--The Tennessee Valley Authority (TVA) announced yesterday cost increases and schedule delays for the construction of the 1,180-MW, Watts Bar Unit 2 nuclear power plant, located in Spring City, Tennessee. The announcement follows a seven-month construction review.

TVA's senior vice president for Nuclear Construction stated, "The emerging estimate to complete Watts Bar Unit 2 will require additional funding of $1.5 billion to $2 billion, putting the total estimated cost of completion in the range of $4 billion to $4.5 billion. The estimated time to complete is between September and December of 2015."

TVA's president and CEO stated the initial detailed scoping, estimating and planning study (DSEP) completed and approved by the TVA board in 2007 appeared "aggressive but doable" at that time. In 2007, the DSEP approved a project with a 60-month construction schedule and a cost of $2.49 billion.

TVA's CEO stated, "Based on the findings to date, we will be asking the TVA board of directors to approve the continued funding and the extended construction time for Unit 2 at Watts Bar Nuclear Plant." The board is expected to consider the new budget and schedule later this month.

TVA now has in place new management at the site. TVA's senior vice president for Nuclear Construction stated, "We now have a high-confidence cost estimate and milestone schedule. The safe and quality cost-effective completion of Watts Bar Unit 2 is an integral part of achieving TVA's energy goals as set out in the Integrated Resource Plan. And, we have added contingency and an allowance for addressing Fukushima impacts."

Construction on Watts Bar 2 actually began 40 years ago in 1972. The unit was deferred in 1988, when load growth forecasts shrank. Work to complete the unit resumed in 2007. Watts Bar 1 is the last commercial nuclear unit in the United States to come online, and it commenced commercial operation in May 1996.

TVA has received a Nuclear Regulatory Commission (NRC) license for fuel at Watts Bar for use in Unit 2, and the new fuel began arriving last summer.
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