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US Nuclear Power Plants Fast Facts

Here's a look at nuclear power plants in the United States....

Posted: Aug 6, 2018 9:07 AM
Updated: Aug 6, 2018 9:07 AM

Here's a look at nuclear power plants in the United States.

There are 99 commercial nuclear power reactor units licensed to operate in the United States.

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The nuclear power reactor units provide the United States with about 20% of its electricity.

Other Facts:
The Nuclear Regulatory Commission or NRC maintains a threat assessment branch, which assesses security threats to nuclear facilities throughout the country.

Sixty-five reactor units are pressurized water reactors and 34 are boiling water reactors. These two types of reactors the only reactors that are in commercial operation in the United States.

There are 31 licensed and operating research reactors in the United States. The majority are located at universities.

Since September 11, additional security measures have been put in place at nuclear facilities, including increased patrols, additional physical barriers and enhanced officer training.

After an earthquake and tsunami in Japan caused an accident at the Fukushima Dai-ichi nuclear power plant in 2011, the NRC implemented short-term and long-term programs to enhance safety at facilities in the United States.

Timeline:
May 26, 1958 - As a part of President Dwight D. Eisenhower's "Atoms for Peace" program, the first commercial nuclear power plant opens as the Shippingport Atomic Power Station.

March 28, 1979 - The Three Mile Island nuclear plant near Middleton, Pennsylvania partially melts down due to a combination of factors including design flaws, equipment malfunction and human error. The accident remains the most serious nuclear power incident in the United States.

1989 - The Shippingport Station becomes the first successfully decommissioned nuclear power plant in the country.

January 1990 - Fuel removal from Three Mile Island is completed.

August 23, 2011 - The North Anna Nuclear Power Station near Mineral, Virginia shuts down due to a 5.8 magnitude earthquake.

February 9, 2012 - The NRC approves plans to build two new nuclear reactors near Augusta, Georgia. It is the first approval of new reactors since 1978. Construction of the reactors is delayed amid funding problems.

October 22, 2015 - The Watts Bar Unit 2 nuclear power reactor, located in Tennessee, receives a full operating license from the NRC. Watts Bar is the first US reactor authorized to operate since 1996 and is also the first plant to comply with new orders from the NRC on Fukushima-related safety strategies.

October 19, 2016 - Watts Bar Unit 2 begins commercial operation, making it the first US reactor to go live in 20 years.

May 30, 2017 - The operator of the Three Mile Island nuclear plant announces that the facility will close in 2019.

NRC regions
There are four NRC regions:

Region I - oversees 25 reactor units. (The Indian Point Energy Center in New York has two reactors in one facility that the Energy Department counts as two separate plants).

Region II - oversees 33 reactor units.

Region III - oversees 23 reactor units.

Region IV - oversees 19 reactor units.

California Coronavirus Cases

Data is updated nightly.

Confirmed Cases: 898799

Reported Deaths: 17305
CountyConfirmedDeaths
Los Angeles2968216974
Riverside657571279
San Bernardino617261070
Orange580101440
San Diego53928867
Kern33669416
Fresno30471436
Sacramento25094482
Santa Clara23881388
Alameda23133456
San Joaquin21528488
Contra Costa18413240
Stanislaus17509396
Tulare17425284
Ventura14124162
Imperial12700336
San Francisco12032140
Monterey1128487
San Mateo11002159
Santa Barbara9715120
Merced9439154
Sonoma9163134
Kings820183
Solano728674
Marin7045128
Madera498174
San Luis Obispo412132
Placer408857
Yolo314458
Butte304652
Santa Cruz275325
Napa192815
Shasta183930
Sutter183712
San Benito143215
El Dorado13084
Yuba129310
Mendocino112121
Tehama8528
Lassen7641
Lake67915
Glenn6523
Nevada6038
Humboldt5619
Colusa5496
Calaveras33917
Amador31716
Tuolumne2624
Inyo22715
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Del Norte1781
Mono1762
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Plumas630
Modoc290
Trinity260
Sierra60
Alpine30
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Fire danger will be extreme Sunday-Monday as the biggest dry wind event of the season takes shape. A widespread freeze in the Sierra-Cascades as low as single-digit values possible Sunday night. Mild & sunny weather after Tuesday.
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