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US utilities ranked by power outages, 2025

Hours without power per customer in 2025 for the 194 US utilities with at least 100,000 customers, including major event days, as reported to the U.S. EIA. The median is 3.3 hours.

Most outage hours

#	Utility	State	Hours	Interruptions	Customers
1	Great Lakes Energy Coop	Michigan	73.3	4.1	133,028
2	City Utilities of Springfield - (MO)	Missouri	21.5	2.3	127,805
3	Monongahela Power Co	West Virginia	20.8	3.7	391,428
4	Appalachian Power Co	Virginia	18.6	2.4	553,079
5	Appalachian Power Co	West Virginia	17.2	3.0	417,331
6	Avista Corp	Idaho	16.2	1.9	148,201
7	Southern Indiana Gas & Elec Co	Indiana	15.8	1.6	156,503
8	Indiana Michigan Power Co	Michigan	15.5	1.8	132,525
9	Kentucky Power Co	Kentucky	15.2	2.6	160,774
10	Duquesne Light Co	Pennsylvania	14.3	1.3	617,922
11	Consumers Energy Co - (MI)	Michigan	13.7	1.4	1,899,459
12	FirstEnergy Pennsylvania Electric Co	Pennsylvania	10.8	2.0	2,084,958
13	First Electric Coop Corp	Arkansas	10.8	2.5	103,674
14	Entergy Mississippi LLC	Mississippi	10.7	2.6	464,256
15	Wisconsin Public Service Corp	Wisconsin	10.5	1.4	469,667
16	Union Electric Co - (MO)	Missouri	9.9	1.2	1,284,472
17	Puget Sound Energy Inc	Washington	9.7	1.6	1,258,468
18	Omaha Public Power District	Nebraska	9.3	1.6	407,892
19	Southern California Edison Co	California	9.1	1.4	5,343,161
20	Northern Indiana Pub Serv Co	Indiana	8.9	1.3	494,852
21	Entergy Arkansas LLC	Arkansas	8.6	2.2	747,309
22	Versant Power	Maine	8.3	2.4	165,449
23	Southwestern Electric Power Co	Texas	7.8	3.0	192,887
24	Southwestern Electric Power Co	Louisiana	7.5	3.0	191,414
25	Southwestern Public Service Co	Texas	7.4	1.7	270,149

Fewest outage hours

#	Utility	State	Hours	Interruptions	Customers
1	Nashville Electric Service	Tennessee	0.0	0.0	461,654
2	Consolidated Edison Co-NY Inc	New York	0.4	0.1	3,820,017
3	Dakota Electric Association	Minnesota	0.5	0.3	117,505
4	City of Anaheim - (CA)	California	0.5	0.6	117,000
5	Modesto Irrigation District	California	0.6	0.4	121,547
6	Gainesville Regional Utilities	Florida	0.6	0.8	101,948
7	Orlando Utilities Comm	Florida	0.6	0.6	291,193
8	City of Colorado Springs - (CO)	Colorado	0.7	0.7	261,349
9	Brunswick Electric Member Corp	North Carolina	0.7	0.6	118,324
10	Tucson Electric Power Co	Arizona	0.7	0.6	460,504
11	South Carolina Public Service Authority	South Carolina	0.7	0.7	215,561
12	Florida Power & Light Co	Florida	0.8	0.5	6,071,776
13	Cobb Electric Membership Corp	Georgia	0.8	0.9	222,657
14	JEA	Florida	0.8	0.9	536,461
15	Madison Gas & Electric Co	Wisconsin	0.8	0.4	170,341
16	City of Eugene - (OR)	Oregon	0.8	0.3	100,777
17	Denton County Elec Coop, Inc	Texas	0.8	0.4	333,690
18	Sacramento Municipal Util Dist	California	0.8	0.9	677,917
19	Middle Tennessee E M C	Tennessee	0.8	0.9	355,220
20	Connexus Energy	Minnesota	0.9	0.6	148,632
21	El Paso Electric Co	Texas	0.9	0.9	363,341
22	Lee County Electric Coop, Inc - (FL)	Florida	1.0	0.9	267,019
23	City of Lakeland - (FL)	Florida	1.0	1.1	139,919
24	Sawnee Electric Membership Corporation	Georgia	1.1	1.1	203,530
25	Salt River Project	Arizona	1.1	1.0	1,182,229

A utility's figure is an average over all its customers: rural lines at the end of long feeders see more, dense cities less. Storm years swing the ranking; each utility page shows its trend by year.

FAQ

Which US utility had the most outage hours in 2025?

Great Lakes Energy Coop (Michigan): 73.3 hours per customer including major event days, among utilities with 100,000 or more customers.

What is a typical number?

The median large utility reported 3.3 hours per customer in 2025, including major event days.

Source: U.S. EIA Form 861 Reliability file, 2025. Utilities that report under more than one state appear once per state. Outages by state →