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TerraPower Announces Start of Construction on First Utility-Scale Advanced Nuclear Plant in Wyoming

LCG, April 23, 2026--TerraPower announced today the official start of construction on its Kemmerer Unit 1 nuclear power plant, which could be the first utility-scale advanced nuclear power plant in the United States. In early March, the Nuclear Regulatory Commission (NRC) announced that it had authorized the staff to issue a construction permit for Unit 1 commercial nuclear power plant in Kemmerer, Wyoming.

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TVA Announces Two Energy Storage Agreements Totaling 425 MW/1,700 MWh

LCG, April 22, 2026--The Tennessee Valley Authority (TVA) yesterday announced two new, 20-year agreements for a 225 MW/900 MWh battery energy storage system (BESS) project in East Tennessee and for a 200 MW/800 MWh BESS project in northern Alabama. Both projects are planned to commence commercial operations in 2029.

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Industry News

Exelon Generation Announces 10 MW Battery Storage Project in PJM

LCG, April, 22 2016--Exelon Generation announced Tuesday the development of a 10 MW battery storage facility in Clinton County, Ohio. Exelon Generation is the storage facility owner and operator, and RES is the project developer and constructor. Project construction will commence this quarter and is expected to be completed in the fall. By year end, the storage units are scheduled to commence operations and begin supporting the PJM grid. Exelon's portfolio already includes almost 10 MW through Exelon's competitive energy company, Constellation.

Battery storage facilities provide fast-response frequency regulation service to support electric grid operators manage the momentary mismatch between load and generation across the grid. The batteries receive, store and deliver electricity from the grid throughout the day, as needed.

The Clinton battery storage project will be powered by Samsung SDI's battery energy storage system, which uses lithium-ion batteries. Samsung SDI will provide over 16,000 high-power batteries, and the facility will include five Parker Hannifin 2-MW power conversion systems that use Parker's two-phase refrigerant cooling solution. The conversion systems are self-contained and require no chilled water or external condenser, allowing for more efficient operation and longer life.

Three semi-trailer sized units will be housed next to a substation to allow for easy interconnection to electrical lines within the PJM grid. The entire storage unit footprint is less than one-third of an acre. The monitoring, dispatch and control of the system will be handled by the RESolve energy platform, a proprietary technology developed by RES. RESolve will manage the storage system to maximize revenue and minimize battery degradation.

Exelon Generation Development's vice president stated, "Exelon continues to invest in new technologies, such as battery storage, to further diversify our generation portfolio. Exelon's deployment of battery storage technology provides customers and grid operators with innovative solutions to meet their technical requirements and enhance system reliability."
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