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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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NERC's New Winter Reliability Assessment Raises Concerns for Elevated Risk of Insufficient Supplies to Meet Demand in Extreme Operating Conditions

LCG, November 19, 2025--NERC yesterday released its 2025–2026 Winter Reliability Assessment (WRA), which concludes "much of North America is again at an elevated risk of having insufficient energy supplies to meet demand in extreme operating conditions." The WRA does state that resources are adequate for normal winter peak demand, but extended, wide-area cold snaps will be challenging.

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Industry News

Calpine Completes Phase II of Pastoria Energy Center

LCG, July 7, 2005--Calpine Corporation announced yesterday that operations have commenced for Phase II of its Pastoria Energy Center, located south of Bakersfield, California. Phase I of the project, with a capacity of 250 MW, began delivering power to Southern California in early May. Phase II adds another 500 MW of gas-fired, electric generating capacity for serving electric loads in Southern California.

The Pastoria Energy Station is an efficient, combined-cycle facility that produces a relatively limited quantity of air emissions, including greenhouse gases.

At the end of May, Calpine's Metcalf Energy Center, located in San Jose, California, began operations. Similar to the Pastoria Energy Station, the Metcalf Energy Center is a 600 MW, combined-cycle power plant. The Pastoria and Metcalf plants provide a significant increase in power supplies to meet California's growing demand for electricity. Following the completion of the two projects, Calpine's California assets will total over 5,750 MW.

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