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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

SCE Submits Technical Responses to NRC Regarding SONGS

LCG, February 28, 2013--Southern California Edison (SCE) announced that it submitted on Monday new information requested by the Nuclear Regulatory Commission (NRC) to further progress towards restarting San Onofre Nuclear Generating Station (SONGS) Unit 2 and to address current compliance with the plant's technical specifications.

SONGS is a critical generating asset in California. Unit 2, with a capacity of approximately 1,180 MW, has been unavailable since January 2012 following the identification of cracks in steam generator tubes. Unit 3 was removed from service shortly thereafter, following the discovery of a leak in a steam generator tube. Further inspections show Unit 3 had more than 300 tubes with unexpected tube-to-tube wear; Unit 2 only had two tubes exhibiting minor tube-to-tube wear.

SCE's supplemental information delivered early this week adds to the comprehensive analysis and restart proposal submitted last October in response to an NRC Confirmatory Action Letter (CAL).

The new submittal provides information about how SCE anticipates addressing ongoing steam generator analysis and interim measures beyond the operating period proposed in SCE's response to the CAL. SCE has proposed restarting Unit 2 at 70 percent power for five months to prevent the conditions that caused excessive tube wear in the steam generators. Furthermore, SCE plans to provide an additional evaluation by March 15, 2013 to demonstrate that structural integrity can be met for Unit 2 at 100 percent rated thermal power.

SCE's senior vice president and chief nuclear officer stated, "This question and answer process is an important part of safety-based technical solutions in the nuclear industry, and it strengthens our ability to communicate to all stakeholders the safety principles and proven industry operating experience that the Unit 2 restart plan was built upon."

SCE anticipates that a decision from NRC may be issued in the late April to May time frame, prior to the summer peak load.

SONGS is jointly owned by SCE (78.21 percent), San Diego Gas & Electric (20 percent) and the City of Riverside (1.79 percent).
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