News
LCG, August 15, 2025--Xcel Energy announced that the company received state approval yesterday from the Minnesota Public Utilities Commission to extend operations of the Prairie Island nuclear plant through the early 2050s. Prairie Island has two units that have a combined generating capacity of 1,100 MW. The units’ current operating licenses expire in 2033 and 2034.
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LCG, August 7, 2025--Portland General Electric (PGE) today announced the completion of three, four-hour lithium-ion utility-scale battery energy storage systems (BESS) in Oregon, adding 475 MW and more than 1.9 GWh of dispatchable capacity to serve the Portland metro area. Each of these BESS facilities can deliver power during peak demand or when other electric generating facilities are limited, which improves system flexibility, reliability and costs.
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Industry News
Sunflower to Add Coal-fired Units at Holcomb Station
LCG, August 12, 2005--Sunflower Electric Power Corporation yesterday announced that its Board of Directors approved an agreement with Tri-State Generation and Transmission Association, Inc. to build two, 600-MW coal-fired units at Sunflowers Holcomb Station power plant in Kansas. Tri-State will own the new generating facilities and will contract with Sunflower to operate and maintain the units. Tri-State is a wholesale power supplier and is owned by 44 rural electric systems that serve customers in Colorado, Wyoming, New Mexico and Nebraska. The additional generation will supplement their long-term power supplies. A spokesperson for Tri-State stated that it plans to invest $2.5 billion in the new units, plus $700 million for up to 550 miles of 345-kV transmission lines stretching from the plant into eastern Colorado. The plans do not include for power to be delivered within the State of Kansas.With the high-level, Memorandum of Agreement now approved, more detailed agreements and plans will be developed. The schedule is expected to allow for construction to begin in 24-42 months, with a construction period of 42 months for the first unit. The units are likely to be constructed sequentially, with the second unit starting approximately a year after construction commences on the first unit.The new units will be built adjacent to the existing facilities at Holcomb Station. The existing plant, which became operational in 1983, has a generating capacity of 360-MW. The plant now burns low-sulfur coal mined in Wyomings Powder River Basin and delivered to the plant by rail.Sunflower has stated that it has secured all necessary permits for the expansion, and a spokesperson for the Kansas Corporation Commission (KCC) stated the agreement to build the power plants does not require the regulatory agency's approval, although Sunflower and Tri-State may need the KCC's authority to construct the transmission lines.
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UPLAN-NPM
The Locational Marginal Price Model (LMP) Network Power Model
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UPLAN-ACE
Day Ahead and Real Time Market Simulation
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UPLAN-G
The Gas Procurement and Competitive Analysis System
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PLATO
Database of Plants, Loads, Assets, Transmission...
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