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EIA Analysis of Southwest Hydropower Generation Shows Record Lows and Slow Recovery

LCG, November 13, 2026--The U.S. Energy Information Administration (EIA) today issued an "In-Brief Analysis" highlighting the record lows for hydropower generation in the Southwest this summer. The prolonged drought conditions affecting the Colorado River Basin caused record low hydropower generation this summer in the Southwestern electricity supply region, which includes Arizona, New Mexico, and small parts of Nevada and California. Hydropower generation from April through August 2026 was a full 28 percent lower than the 10-year average and 19 percent lower than during the same period last year.

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NRC Issues Construction Permit for Long Mott High-Temperature, Gas-Cooled Reactor in Texas

LCG, November 11, 2026--The Nuclear Regulatory Commission (NRC) announced on November 9 that it has approved the Construction Permit Application ("CPA") for the Long Mott Generating Station in Texas. Long Mott Energy, LLC (LME) must obtain a separate operating license from the NRC before loading fuel or operating the reactors.

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Industry News

Southwest Power Pool Sets Wind Penetration Record of 62.13 Percent

LCG, April 4, 2018--Southwest Power Pool (SPP) achieved a record wind penetration and record renewable penetration levels in the early morning on March 31. According to SPP, the wind generation was approximately 14.5 GW, or 62.13 percent, at 1:54 a.m. Combined with nuclear output, the renewable generation resources contributed to about 64.7% of the total load.

With the record setting wind generation, the five-minute SPP North Hub real-time locational marginal prices (LMP) fell to about $2.25/MWh at 1:55 a.m. in the real-time market, while SPP South Hub LMP dropped to negative $10/MWh.

The all-time high wind generation record was set at 15,690 MW in December, serving 51 percent of total load at that time.

The prior wind record was set on March 17, when wind penetration hit as high as 60.56 percent of the total load in the early morning hours. SPP also set a wind penetration record of 58.1 percent earlier in March.


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