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Energy Vault and Jupiter Power Announce New Agreement for Battery Energy Storage System in Texas

LCG, June 4, 2025--Energy Vault Holdings Inc. (Energy Vault) and Jupiter Power (Jupiter) today announced the signing of an agreement for the supply of an additional battery energy storage system (BESS) at a Jupiter site in the Electric Reliability Council of Texas (ERCOT) region. The initial BESS project, located near Fort Stockton, Texas, was completed in July 2024, with a storage capacity 100 MW/200 MWh. The new BESS project will add another 100 MW/200 MWh of capacity. Construction has commenced, and the project is expected to achieve commercial operations by the end of this summer.

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NuScale Power Achieves Standard Design Approval from NRC for 77 MW SMR

LCG, May 30, 2025--NuScale Power Corporation (NuScale), a leading provider of advanced small modular reactor (SMR) nuclear technology, yesterday announced that it has received design approval from the U.S. Nuclear Regulatory Commission (NRC) for its uprated 77 MW power modules. NuScale states that it remains the only SMR technology company with design approval from the NRC, and the company remains on track for deployment by 2030, with 50- and 77-MW SMR options.

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Industry News

Calpine Plans Project Expansion in Wisconsin

LCG, August 3, 2004--Wisconsin Public Service Corporation and Calpine have executed a contract that will lead to the expansion of Calpine's Fox Energy Center. Calpine currently is constructing a 305 MW plant to provide 235 MW to Wisconsin Public Service for deliveries beginning June 1, 2005. The new contract provides for an additional 235 MW, ten-year power sales commitment for capacity, energy and ancillary services. The deliveries are scheduled to begin on June 1, 2006, subject to approval by the Public Service Commission of Wisconsin.

The new, gas-fired, combined cycle plant is located in Kaukauna, Wisconsin. With the new agreement, Calpine will install another combustion turbine and related equipment to increase the total plant capacity to approximately 550 MW. Calpine expects to begin construction of this addition later this year, using a combustion turbine from its existing inventory. Calpine acquired the project last year from a subsidiary of MidAmerica Energy Holdings.

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