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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 Sells Output of Proposed Florida Plant

LCG, Oct. 18, 2000Calpine Corp. and Tampa, Fla.-based Seminole Electric Cooperative Inc. jointly announced yesterday that they had asked Florida regulators to approve a deal under which Seminole would buy power from a 540 megawatt Calpine merchant power plant proposed for Auburndale, Fla., about 35 miles east of Tampa.

Under of the terms of the planned agreement, Seminole will have access to all of the output from the Osprey Energy Center for a period of 17 years, beginning with the plant's projected commercial operation date of June 2003, with an option to renew every 5 years. Terms of the deal were not disclosed.

Calpine said the contract would support its Petition for Determination of Need, which is currently pending before the Florida Public Service Commission. Hearings on the petition are scheduled tobegin November 29.

Tim Woodbury, Seminole's vice president for strategic services, said "The agreement provides us with the pricing, the reliability of supply and the flexibility that our member systems need in Florida's dynamic and evolving electric power market."

Calpine said the Osprey plant would be built adjacent to an existing 150 megawatt Calpine plant in Auburndale. The company plans to add another 100 megawatts to that facility and also has in the works a 1,080 megawatt energy center planned for Vero Beach, Fla.

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