U.S. Nuclear Generating Statistics

Statistics
Operating Plants, Reliability & Resilience

From 1971 to 2025

YearTotal Electricity Generation (MWh)Nuclear Generation (MWh)Nuclear Fuel Share (Percent)Capacity Factor (Percent)Summer Capacity (MW)
19711,615,853,61638,104,5452.448.29,033
19721,752,978,41354,091,1353.142.514,481
19731,864,056,63183,479,4634.553.522,683
19741,870,319,405113,975,7406.147.831,867
19751,920,754,569172,505,0759.055.937,267
19762,040,913,681191,103,5319.454.743,822
19772,127,447,487250,883,28311.863.346,303
19782,209,376,911276,403,07012.564.550,824
19792,250,665,025255,154,62311.358.449,747
19802,289,600,364251,115,57511.056.351,810
19812,297,973,339272,673,50311.958.256,042
19822,244,372,488282,773,24812.656.660,035
19832,313,445,685293,677,11912.754.463,009
19842,419,465,368327,633,54913.556.369,652
19852,473,002,122383,690,72715.558.079,397
19862,490,470,952414,038,06316.656.985,241
19872,575,287,666455,270,38217.757.493,583
19882,707,411,177526,973,04719.563.594,695
19892,967,305,524529,354,71717.862.298,161
19903,037,827,337576,861,67819.066.099,624
19913,073,798,885612,565,08719.970.299,589
19923,083,882,204618,776,26320.170.998,985
19933,197,191,096610,291,21419.170.599,041
19943,247,522,388640,439,83219.773.899,148
19953,353,487,362673,402,12320.177.499,515
19963,444,187,621674,728,54619.676.2100,784
19973,492,172,283628,644,17118.071.199,716
19983,620,295,498673,702,10418.678.297,070
19993,694,809,810728,254,12419.785.397,411
20003,802,105,043753,892,94019.888.197,860
20013,736,643,653768,826,30820.689.498,159
20023,858,452,254780,064,08720.290.398,657
20033,883,185,205763,732,69519.787.999,209
20043,970,555,263788,528,38719.990.199,628
20054,055,422,750781,986,36519.389.399,988
20064,064,702,227787,218,63619.489.6100,334
20074,156,744,724806,424,75319.491.8100,266
20084,119,387,760806,208,43519.691.1100,755
20093,950,330,926798,854,58520.290.3101,004
20104,125,059,899806,968,30119.690.9101,167
20114,100,140,926790,204,36719.388.9101,419
20124,047,765,267769,331,24919.086.4101,418
20134,065,964,067789,016,47319.489.999,2401
20144,093,537,984797,165,98219.591.799,5692
20154,077,527,880797,177,87719.692.298,672
20164,076,609,813805,693,94819.892.199,5653
20174,034,182,858804,949,63520.092.299,629
20184,178,277,344807,084,47719.392.399,4334
20194,127,855,213809,409,26219.693.498,1195
20204,007,135,467789,878,86319.792.596,5016
20214,109,699,391
779,644,59518.992.796,5317
20224,230,672,233771,537,17618.092.195,540
20234,183,270,672
775,437,15118.293.095,773
20244,308,634,297781,979,42217.892.296,748
20254,425,028,524
784,780,71817.492.596,867
Notes:
1  Kewaunee retired in May 2013.

2  Vermont Yankee retired in December 2014.

3  Fort Calhoun retired in October 2016.

4  Oyster Creek retired in September 2018.

5   Pilgrim and Three Mile Island Unit 1 retired in May and September 2019, respectively.

6 Indian Point 2 and Duane Arnold retired in April and August 2020, respectively. 

7 Indian Point 3  retired in April 2021, and Palisades retired in May 2022, resulting in a net summer capcity of 94,696 MWe. 
Source:  U.S. Energy Information Administration
Updated: SEPTEMBER 2026