Source: U.S. Energy Information Administration, Monthly Energy Review
Note: Capacity
for 2016-20 is based on scheduled retirements and additions and does
not take into account uprates or any not-yet-announced reductions in
nuclear capacity.
Update: Shortly after this article was published, Entergy Corp. announced the planned retirement of the 852 megawatt
James A. Fitzpatrick nuclear plant
in Scriba, New York, in late 2016 or early 2017. The numbers in the
article and graph have not been updated to reflect this announcement.
Despite the scheduled closure of more than 2,000 megawatts (MW) of
nuclear generating capacity by 2019, scheduled additions of more than
5,000 MW of capacity between 2016 and 2020 could result in a net
increase in total U.S. nuclear capacity.
Entergy Corp. announced in October its intention to close by mid-2019 the 685 MW
Pilgrim Nuclear Power Station
located in Massachusetts. The closure of Pilgrim could take place even
earlier, as Entergy could choose to shut Pilgrim down during the plant's
scheduled refueling and maintenance in 2017. In addition to the
just-announced plan to close Pilgrim, the 678 MW
Oyster Creek Nuclear Generating Station in New Jersey is also scheduled to shut down in 2019.
There are currently five new reactors under construction in the
United States. Watts Bar Unit 2 (estimated 1,150 MW capacity) in
southeastern Tennessee,
which recently received its operating license
from the Nuclear Regulatory Commission, is projected to begin
commercial operation in 2016. The Vogtle plant in eastern Georgia and
the V.C. Summer plant in South Carolina, which have both experienced
significant project delays of two to three years, are each currently
scheduled to begin operating two new reactors (each with 1,117 MW
capacity) in 2019 and 2020.
Source: U.S. Energy Information Administration
Note: Circles on map are sized by plant capacity.
Thirty U.S. states have nuclear power plants; most are located east
of the Mississippi River. Illinois has the most nuclear capacity of any
state, followed by Pennsylvania. Exelon, the utility with the highest
amount of nuclear power capacity in its generation assets, operates 17
reactors at 10 plants located in Illinois, Pennsylvania, and New Jersey.
Nuclear reactors are typically larger than natural gas- and
coal-fired units—the average nuclear unit capacity is just under 1,000
MW, compared to about 130 MW for natural gas combined-cycle units and
270 MW for coal units. The nation's largest nuclear plant and
second-largest power plant of any fuel type is the
Palo Verde Nuclear Generating Station in Arizona, which has three reactors with a total capacity of 3,937 MW. The smallest operational nuclear plant is
Fort Calhoun Nuclear Generating Station in Nebraska, with a capacity of 479 MW.
Including last year's
closure of the 604 MW Vermont Yankee Nuclear Power Plant,
four nuclear power plants (five reactors) have been shut down over the
past four years, reducing nuclear capacity by more than 4,000 MW and
leaving the United States with 99 operating nuclear power reactors at 62
different nuclear power plants.
Principal contributor: EIA Staff