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Home / Energy & Industry

U.S. States by Nuclear Electricity Generation

2025: Illinois ranks first at 97,670,262. 25 entries; unit: MWh.

🇺🇸 See all of this country’s rankings →

All entries · 25

20M MWh40M MWh60M MWh80M MWh

Every dot is one entry, placed by its value (MWh); the vertical bar marks each row’s median.

U.S. States by Nuclear Electricity Generation — 2025. Values in MWh.
Rank	Entry	Value (MWh)
1	IllinoisIL	97,670,262
2	PennsylvaniaPA	75,049,210
3	South CarolinaSC	56,670,524
4	GeorgiaGA	51,224,793
5	North CarolinaNC	43,046,739
6	AlabamaAL	42,672,668
7	TexasTX	41,840,814
8	ArizonaAZ	31,321,808
9	FloridaFL	30,587,612
10	TennesseeTN	29,333,225
11	New YorkNY	28,407,580
12	VirginiaVA	28,214,205
13	New JerseyNJ	27,917,718
14	MichiganMI	27,533,963
15	CaliforniaCA	17,558,394
16	OhioOH	17,141,858
17	ConnecticutCT	16,708,717
18	LouisianaLA	15,254,572
19	ArkansasAR	15,193,050
20	MarylandMD	14,795,150
21	MinnesotaMN	13,213,321
22	MississippiMS	11,807,221
23	New HampshireNH	10,910,165
24	WisconsinWI	10,175,529
25	KansasKS	9,269,040

Highlights

Within United States, Illinois ranks first in 2025 with 97,670,262, followed by Pennsylvania (75,049,210) and South Carolina (56,670,524).

Across 25 entries, values run from 97,670,262 (Illinois) to 9,269,040 (Kansas), with a median of 27,917,718.

Source: U.S. Energy Information Administration, Historical State Data: Net Generation by State by Type of Producer by Energy Source (2025 final annual data), 2025. Unit: MWh.

Source: U.S. Energy Information Administration, Historical State Data: Net Generation by State by Type of Producer by Energy Source (2025 final annual data) · U.S. government data; public domain · manually compiled Oct 22, 2026

About this ranking

Historical data · 2025

Source: U.S. Energy Information Administration, Historical State Data: Net Generation by State by Type of Producer by Energy Source (2025 final annual data) ↗
Reference period: 2025Dataset updated Oct 22, 2026. The badge reflects the reference year, not the update date.
Definition: The 25 U.S. states and District of Columbia with the highest reported nuclear in 2025, ranked by net generation. Values are in megawatt-hours.
Unit: MWh
Coverage & value range: United States · 25 listed entriesValues: 9,269,040 to 97,670,262
Ranking direction: Highest value first (descending)#1 is the highest listed value, not necessarily the best outcome.

Source notes: AllRanks assistant verified on 2026-10-22 against the EIA original “Net Generation by State by Type of Producer by Energy Source” workbook from the Historical State Data page. Used final annual 2025 observations for “Total Electric Power Industry”; checked every included state/DC name, source column, value, MWh unit and descending order. The US total row was excluded. Source categories and boundaries follow EIA; solar combines “Solar Thermal and Photovoltaic”, and biomass uses the EIA “Other Biomass” category only. Lists show the 25 highest reported positive values when 25 or more are available, otherwise all reported positive values; missing source/state rows are not imputed. This is a source-data check, not independent measurement.

Coverage describes this list, not necessarily the full population. Missing entries do not imply a value of zero. Collection & methodology →

Ranking

Loading ranking…

IllinoisIL

97,670,262

PennsylvaniaPA

75,049,210

South CarolinaSC

56,670,524

GeorgiaGA

51,224,793

North CarolinaNC

43,046,739

AlabamaAL

42,672,668

TexasTX

41,840,814

ArizonaAZ

31,321,808

FloridaFL

30,587,612

TennesseeTN

29,333,225

New YorkNY

28,407,580

VirginiaVA

28,214,205

New JerseyNJ

27,917,718

MichiganMI

27,533,963

CaliforniaCA

17,558,394

OhioOH

17,141,858

ConnecticutCT

16,708,717

LouisianaLA

15,254,572

ArkansasAR

15,193,050

MarylandMD

14,795,150

MinnesotaMN

13,213,321

MississippiMS

11,807,221

New HampshireNH

10,910,165

WisconsinWI

10,175,529

KansasKS

9,269,040

Highlights

Within United States, Illinois ranks first in 2025 with 97,670,262, followed by Pennsylvania (75,049,210) and South Carolina (56,670,524).

Across 25 entries, values run from 97,670,262 (Illinois) to 9,269,040 (Kansas), with a median of 27,917,718.

Source: U.S. Energy Information Administration, Historical State Data: Net Generation by State by Type of Producer by Energy Source (2025 final annual data), 2025. Unit: MWh.