Michele Kearney's Nuclear Wire

Major Energy and Environmental News and Commentary affecting the Nuclear Industry.

Sunday, October 18, 2015

Yes Vermont Yankee Pilgrim will close by 2015 (Updated)

Yes Vermont Yankee
Pilgrim will close by 2015 (Updated)


Entergy announced that Pilgrim will close by 2019.  Entergy would like to close Pilgrim in 2017, but Pilgrim is obligated by its participation (until 2019) in the Forward Capacity Auction . The plant must keep running until 2019, or purchase replacement capacity for the grid.  This post describes capacity auctions and also describes (the update) how high capacity prices hurt nuclear plants, compared to gas plants. The price problem is illustrated in a simple chart.  Nuclear plants run for many hours, and they expect to obtain most of their revenue from selling power. However, gas plants run fewer hours, and expect to get more of their revenue from capacity payments. Low prices on the grid and high capacity payments tilt the playing field toward gas-fired plants.

Meredith Angwin

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