US states by nuclear electricity generation

Illinois had the highest nuclear electricity generation of 30 states in 2016, at 98.61 TWh. Iowa had the lowest, at 4.7 TWh. The median was 18.03 TWh and the figure for the United States was 805.69 TWh. Source: the U.S. Energy Information Administration.

Highest98.61Illinois
Lowest4.7Iowa
Median18.0330 states
United States805.69History

All states, 2016

Illinois: 98.61 TWhIllinois98.61Pennsylvania: 82.92 TWhPennsylvania82.92South Carolina: 55.83 TWhSouth Carolina55.83North Carolina: 42.79 TWhNorth Carolina42.79Texas: 42.08 TWhTexas42.08New York: 41.57 TWhNew York41.57Alabama: 39.9 TWhAlabama39.9Georgia: 34.48 TWhGeorgia34.48Arizona: 32.38 TWhArizona32.38Michigan: 31.55 TWhMichigan31.55New Jersey: 29.89 TWhNew Jersey29.89Virginia: 29.73 TWhVirginia29.73Tennessee: 29.58 TWhTennessee29.58Florida: 29.32 TWhFlorida29.32California: 18.91 TWhCalifornia18.91Louisiana: 17.15 TWhLouisiana17.15Ohio: 16.82 TWhOhio16.82Connecticut: 16.58 TWhConnecticut16.58Maryland: 14.76 TWhMaryland14.76Minnesota: 13.86 TWhMinnesota13.86Arkansas: 13.42 TWhArkansas13.42New Hampshire: 10.76 TWhNew Hampshire10.76Wisconsin: 10.15 TWhWisconsin10.15Washington: 9.63 TWhWashington9.63Missouri: 9.43 TWhMissouri9.43Nebraska: 9.35 TWhNebraska9.35Kansas: 8.25 TWhKansas8.25Mississippi: 5.9 TWhMississippi5.9Massachusetts: 5.41 TWhMassachusetts5.41Iowa: 4.7 TWhIowa4.7
TWh. Source: EIA, Electricity data browser: net generation, nuclear, all sectors, annual (EIA-923) via Data Commons. Retrieved 2026-10-11.

Full ranking

RankStates2016
TWh
Change on 2015
1Illinois98.61+1.4%
2Pennsylvania82.92+3%
3South Carolina55.83+5%
4North Carolina42.79+1.6%
5Texas42.08+6.9%
6New York41.57-6.8%
7Alabama39.9-4.9%
8Georgia34.48+1.9%
9Arizona32.38-0.5%
10Michigan31.55+7.6%
11New Jersey29.89-10.2%
12Virginia29.73+6%
13Tennessee29.58+18.5%
14Florida29.32+4.3%
15California18.91+2.2%
16Louisiana17.15+12.1%
17Ohio16.82-3.2%
18Connecticut16.58-4.8%
19Maryland14.76+0.8%
20Minnesota13.86+15.1%
21Arkansas13.42-3%
22New Hampshire10.76+13.5%
23Wisconsin10.15+1.4%
24Washington9.63+17.9%
25Missouri9.43-9.7%
26Nebraska9.35-9.4%
27Kansas8.25-4.5%
28Mississippi5.9-49.7%
29Massachusetts5.41+8.4%
30Iowa4.7-10.3%

Other periods

About this ranking

Net electricity generated by nuclear power plants in the year, in terawatt hours, as reported to the U.S. Energy Information Administration on Form EIA-923.

United States and its states only. States without a nuclear plant have no value; a state's series stops when its last reactor closes.

Every value in the ranking comes from the same publisher and the same period, so the states are compared on one definition. 1 states with data in other periods have no value for 2016 and are left out rather than filled from another source. Equal values share a rank.

How to cite

Source: U.S. Energy Information Administration. Electricity data browser: net generation, nuclear, all sectors, annual (EIA-923). Retrieved through Data Commons (datacommons.org). https://www.eia.gov/electricity/data/browser/. Retrieved 2026-10-11.

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Questions

Which state has the highest nuclear electricity generation?

Illinois, with 98.61 TWh in 2016, according to the U.S. Energy Information Administration.

Which state has the lowest nuclear electricity generation?

Iowa, with 4.7 TWh in 2016.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Energy Information Administration, Electricity data browser: net generation, nuclear, all sectors, annual (EIA-923). Retrieved 2026-10-11. 1 states have no value for 2016 and are not ranked.

US states: more rankings