US states by nuclear electricity generation

Illinois had the highest nuclear electricity generation of 30 states in 2017, at 97.19 TWh. Massachusetts had the lowest, at 5.05 TWh. The median was 17.79 TWh and the figure for the United States was 804.95 TWh. Source: the U.S. Energy Information Administration.

Highest97.19Illinois
Lowest5.05Massachusetts
Median17.7930 states
United States804.95History

All states, 2017

Illinois: 97.19 TWhIllinois97.19Pennsylvania: 83.2 TWhPennsylvania83.2South Carolina: 54.34 TWhSouth Carolina54.34Alabama: 42.65 TWhAlabama42.65North Carolina: 42.37 TWhNorth Carolina42.37New York: 42.17 TWhNew York42.17Texas: 38.58 TWhTexas38.58New Jersey: 34.03 TWhNew Jersey34.03Georgia: 33.71 TWhGeorgia33.71Michigan: 32.38 TWhMichigan32.38Arizona: 32.34 TWhArizona32.34Tennessee: 31.82 TWhTennessee31.82Virginia: 30.55 TWhVirginia30.55Florida: 29.15 TWhFlorida29.15California: 17.9 TWhCalifornia17.9Ohio: 17.69 TWhOhio17.69Connecticut: 16.5 TWhConnecticut16.5Louisiana: 15.41 TWhLouisiana15.41Maryland: 15.11 TWhMaryland15.11Minnesota: 13.9 TWhMinnesota13.9Arkansas: 12.69 TWhArkansas12.69Kansas: 10.65 TWhKansas10.65New Hampshire: 9.99 TWhNew Hampshire9.99Wisconsin: 9.65 TWhWisconsin9.65Missouri: 8.3 TWhMissouri8.3Washington: 8.13 TWhWashington8.13Mississippi: 7.36 TWhMississippi7.36Nebraska: 6.91 TWhNebraska6.91Iowa: 5.21 TWhIowa5.21Massachusetts: 5.05 TWhMassachusetts5.05
TWh. Source: EIA, Electricity data browser: net generation, nuclear, all sectors, annual (EIA-923) via Data Commons. Retrieved 2026-10-11.

Full ranking

RankStates2017
TWh
Change on 2016
1Illinois97.19-1.4%
2Pennsylvania83.2+0.3%
3South Carolina54.34-2.7%
4Alabama42.65+6.9%
5North Carolina42.37-1%
6New York42.17+1.4%
7Texas38.58-8.3%
8New Jersey34.03+13.9%
9Georgia33.71-2.2%
10Michigan32.38+2.6%
11Arizona32.34-0.1%
12Tennessee31.82+7.6%
13Virginia30.55+2.8%
14Florida29.15-0.6%
15California17.9-5.3%
16Ohio17.69+5.2%
17Connecticut16.5-0.5%
18Louisiana15.41-10.2%
19Maryland15.11+2.3%
20Minnesota13.9+0.3%
21Arkansas12.69-5.4%
22Kansas10.65+29.1%
23New Hampshire9.99-7.2%
24Wisconsin9.65-4.9%
25Missouri8.3-11.9%
26Washington8.13-15.6%
27Mississippi7.36+24.9%
28Nebraska6.91-26.1%
29Iowa5.21+10.9%
30Massachusetts5.05-6.8%

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 2017 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.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank US states by nuclear electricity generation using official data, and cite the source.
rank_places {"indicator":"electricity_generation_nuclear","level":"region","within":"United States","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=electricity_generation_nuclear&level=region&within=United%20States&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which state has the highest nuclear electricity generation?

Illinois, with 97.19 TWh in 2017, according to the U.S. Energy Information Administration.

Which state has the lowest nuclear electricity generation?

Massachusetts, with 5.05 TWh in 2017.

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 2017 and are not ranked.

US states: more rankings