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RWE Commissions the 200-MW Stoneridge Solar Project in Texas

LCG, November 26, 2025--RWE announced today the commissioning of the Stoneridge Solar project, located in Milam County, Texas. The project capacity is 200 MW of solar power, plus a battery energy storage system (BESS) that provides 100 MW (200 MWh) of battery storage capacity. The BESS improves the supply of short-term, reliable, affordable electricity in ERCOT.

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Oklo and Siemens Energy Sign Agreement to Accelerate Power Conversion System for New SMR in Idaho

LCG, November 19, 2025--Oklo Inc. and Siemens Energy announced today that the parties have signed a binding contract for the design and delivery of the power conversion system for Oklo’s Aurora-INL (Idaho National Laboratory) nuclear small modular reactor (SMR). The agreement authorizes Siemens Energy to begin engineering and design work to expedite procurement of long-lead components and to initiate the manufacturing process for the power conversion system. Oklo’s expertise in advanced fission technology will be combined with Siemens Energy’s extensive industry experience with steam turbine and generator systems, with the ultimate goal of generating carbon-free, reliable electricity.

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Industry News

AmerenUE Halts Plans for New Reactor at Callaway

LCG, April 24, 2009--AmerenUE yesterday announced its plans to install another
nuclear reactor at the Callaway Plant in Missouri are now on hold, as state
legislative changes desired by the utility are not proceeding as expected.

AmerenUE was relying upon legislative changes that would allow for a utility to
recover project costs from consumers prior to project completion and start-up. Without the change in the law, and given the current credit-constrained markets, AmerenUE stated that it believes getting financial backing for the multi-billion dollar project is impossible.

The existing Callaway Plant consists of a single reactor that has a net generating
capacity of 1,126 MW and began service December 1984. The site is located about
twenty-five miles northeast of Jefferson City and was initially developed with the
idea of adding a second unit in the future.

In 2007, AmerenUE announced that the company had signed an agreement with UniStar
Nuclear Energy to help prepare a combined operating license (COL) application.

AmerenUE submitted a COL application to the Nuclear Regulatory Commission (NRC) on
July 28, 2008 to add a second reactor at its Callaway Plant. The application incorporated AREVA's U.S. Evolutionary Power Reactor (EPR), which is a pressurized water reactor with a nominal electric output of approximately 1,600 MW. The NRC accepted the application for review in December 2008.
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