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Nuclear Generation Declines as PPL Slows Susquehanna 2

U.S. nuclear-power production fell as PPL Corp. reduced output at a reactor in Pennsylvania.

Nationwide generation declined 0.2 percent to 93,101 megawatts, or 91 percent of capacity, erasing yesterday’s gain, according to U.S. Nuclear Regulatory Commission data compiled by Bloomberg. Output was 1.8 percent higher than a year ago, with eight of 104 reactors offline.

PPL’s 1,140-megawatt Susquehanna 2 operated at 85 percent of capacity, from 99 percent yesterday. The unit was slowed for scheduled maintenance and is returning to full power, Joe Scopelliti, a company spokesman based in Berwick, Pennsylvania,said in an e-mail. The two-reactor plant is about 70 miles (112 kilometers) northeast of Harrisburg, Pennsylvania.

The 685-megawatt Pilgrim 1 reactor, 38 miles southeast of Boston, slowed to 80 percent output from 87 percent yesterday. The unit cut output Feb. 3 so technicians could reseat a pilot valve, Carol Wightman, an Entergy Corp. spokeswoman based at the plant, said in an e-mail yesterday.

Reactor maintenance shutdowns, usually undertaken in the U.S. spring or fall when energy use is at its lowest, may increase consumption of natural gas and coal to generate electricity. The average refueling down time was 46 days in 2012, according to the Nuclear Energy Institute.

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