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News
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LCG, April 13, 2026--The EIA today released an "In-brief Analysis" of U.S. coal-fired generating capacity retirements in 2025. A highlight of the analysis is that, during 2025, the electric power sector retired 2.6 GW of coal-fired generating capacity at four power plants, which is (i) the least since 2010 and (ii) 5.9 GW less than the planned retirement of 8.5 GW at the beginning of 2025.
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LCG, April 10, 2026--The U.S. Environmental Protection Agency (EPA) announced yesterday a rule proposing several revisions to the federal regulations governing the disposal of coal combustion residuals (CCR) and the beneficial use of CCR. The EPA designed the rule to encourage resource recovery, allow for site-specific considerations in permitting, and provide regulatory relief while continuing to protect human health and the environment. The EPA will be accepting comments on the rule for 60 days after publication in the Federal Register, and it will also hold an online public hearing on the rule.
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Industry News
APS Signs PPA with NextEra for Power from Perrin Ranch Wind Energy Center
LCG, July 29, 2010--Arizona Public Service Company (APS) and NextEra Energy Resources have executed a 25-year, power purchase agreement (PPA) for APS to buy all of power generated from NextEra's planned Perrin Ranch Wind Energy Center, located in Coconino County, Arizona.
The 99.2-MW project will consist of 62, 1.6-MW wind turbines. Construction is scheduled to commence next year, and the project is expected to deliver power to the grid in 2012. This schedule is contingent upon receiving necessary permitting. In addition, the PPA must be approved by the Arizona Corporation Commission (ACC).
In 2006, the Arizona Corporation Commission (ACC) adopted rules setting Arizona's Renewable Energy Standard (RES) to 15 percent by 2025, with 30 percent of the renewable energy to be derived from distributed energy technologies. Investor-owned utilities (like APS) and electric power cooperatives serving retail customers in Arizona must meet this target. The RES target in 2012 is 3.5 percent.
Arizona's first commercial-scale wind farm, the Dry Lake Wind Power Project, was dedicated in October 2009. The 63-MW project was developed by Iberdrola Renewables, and Salt River Project (SRP) signed a PPA for all of the power output. The project includes 30 Suzlon S88-2.1 MW wind turbines.
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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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