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Public Service Company of Oklahoma Completes Acquisition of Green Country Power Plant

LCG, July 3, 2025--American Electric Power (AEP) announced today that on June 30, the 795-MW Green Country Power Plant officially became part of the generation portfolio of Public Service Company of Oklahoma (PSO), a unit of AEP.

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Alliant Energy Submits Plans to Iowa Utilities Commission for the Addition of 1,000 MW of Wind Capacity

LCG, July 2, 2025--Alliant Energy today announced plans to add up to 1,000 MW of wind energy generating capacity in Iowa to meet demand and ensure reliable, affordable energy for its customers. The plans are included in a filing with the Iowa Utilities Commission (IUC), and the company anticipates a decision from the IUC in the first quarter of 2026.

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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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