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SPP Board Approves Alternative, Accelerated Generation Interconnection Process to Improve Regional Resource Adequacy

LCG, May 8, 2025--The Southwest Power Pool (SPP) Board of Directors approved SPP’s proposed Expedited Resource Adequacy Study (ERAS) at its May 6 meeting. SPP developed the new ERAS in collaboration with its stakeholders in response to the growing need to add new generating resources before the region’s generating capacity is outpaced by its electricity demands. ERAS is intended to be a one-time, expedited study process designed to significantly accelerate the addition of new power generation facilities to the grid and address concerns about the near term ability to maintain the affordable and reliable electric service that consumers expect.

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EDP Renewables Completes Scarlet II Solar and Energy Storage Project in California

LCG, May 7, 2025--EDP Renewables North America LLC (EDPR NA) announced yesterday the inauguration of its Scarlet II Solar Energy Park (Scarlet II) in Fresno County, California. This phase of the solar plus energy storage project includes 200 MW of solar capacity, plus a co-located 150 MW/600 MWh battery energy storage system (BESS). The initial phase of the project, Scarlet I, which provides 200 MW of solar and 40 MW/160 MWh of BESS, achieved commercial operations in July 2024.

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Industry News

Successful Pilot Test of Carbon Capture at We Energies Coal Plant

LCG, October 9, 2009--The Electric Power Research Institute (EPRI), We Energies, and Alstom announced yesterday that a pilot project testing an advanced chilled ammonia process has demonstrated more than 90 percent capture of carbon dioxide (CO2) from the flue stream of a coal-fired power plant in Wisconsin.

The pilot project is at We Energies' Pleasant Prairie Power Plant, where Alstom's patented chilled ammonia process for carbon capture has been tested using a 1.7-MW (electric) slipstream from the flue gas. The project, which began last year, provides key research metrics around over 7,000 hours of operation, ammonia release, CO2 removal levels, and CO2 purity under a range of actual utility operating conditions. The project is scheduled for completion this year.

Alstom and EPRI are conducting a number of other carbon capture demonstration projects, and the test results and project experiences gained at the We Energies facility provide valuable insight toward improving the design and scaling up the process.

At AEP's 1,300-MW, coal-fired Mountaineer Plant, Alstom has installed a larger system for a 20-MW (electric) capture system. At this site, the captured CO2 will be compressed, transported via pipeline and injected into two different saline reservoirs located approximately 8,000 feet beneath the plant site. The pilot project will included monitoring the sequestered CO2 over time.

The EPRI's collaborative activities support efforts to advance CCS technologies to commercial scale and to provide information to the public and industry on future power supply options.
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