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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

Tucson Electric Power Announces Acquisition of Combined-Cycle Facility in Arizona

LCG, December 11, 2014-Tucson Electric Power Co. (TEP) announced yesterday that it has finalized the acquisition of a 550-MW, gas-fired power plant in Gila Bend, Arizona to reduce coal-fired electric generation. TEP and UNS Electric, Inc., a subsidiary of UniSource Energy Services (UES), purchased the Gila River Power Station Power Block 3 from Gila River Power LLC, a wholly owned subsidiary of Entegra Power Group LLC, for $219 million. TEP will control 413 MW of its output, while UNS Electric will control the remainder. TEP and UNS are subsidiaries of UNS Energy Corp., which was acquired in August by Canadian utility operator Fortis Inc.

TEP's President and Chief Executive Officer stated, "This acquisition contributes to an evolving resource portfolio that will continue to provide reliable, affordable and sustainable energy for our customers for many years to come". Our resource plan will result in a 25 percent reduction in carbon dioxide emissions by 2020 without compromising the affordability, safety or reliability of our service.

TEP plans to reduce its coal-fired generation capacity by approximately 32 percent by 2018. First, the lease for a unit at the Springerville Generating Station in eastern Arizona will remove approximately 200 MW of coal-fired capacity from the company's portfolio at the end of this year. Second, TEP will begin using natural gas exclusively as a fuel source for Unit 4 at the H. Wilson Sundt Generating Station in Tucson, removing another 120 MW of coal-fired capacity but the end of 2017. Third, in 2017 TEP plans to shut down Unit 2 of the San Juan Generating Station in New Mexico, of which TEP owns 170 MW. The combined capacity reductions in coal assets totals 490 MW.

The Gila River Power Station is located on a 1,100 acre site about 70 miles southwest of Phoenix and is interconnected to the Arizona power transmission network through two 500 kV ties and one 230 kV tie, which provide access to energy markets throughout the southwest. The electric generating station is comprised of four individual combined cycle power blocks, with a combined generating capacity of approximately 2,200-MW. Each power block includes two GE 7-FA combustion turbines with inlet air fogging, two Alstom heat recovery steam generators (HRSG) with supplemental duct-firing, and a GE single case, single flow axial exhaust condensing steam turbine. The facility began commercial operations in May 2003.

Earlier this week, the sale of a similar large power plant, the 1,980-MW Union Power Station, by Entegra Power was announced. Entergy Corporation subsidiaries Entergy Arkansas, Inc., Entergy Gulf States Louisiana, L.L.C. and Entergy Texas, Inc. acquired the Union Power Station from Union Power Partners, L.P., an independent power producer (IPP) that is wholly-owned by Entegra TC LLC, for a purchase price of $948 million.
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