EIA-861 · 2023 918 utilities tracked All 50 states

How reliable is your electric utility?

According to the U.S. Energy Information Administration's EIA Form 861 2023 filings, the customer-weighted national SAIDI is 341 minutes per customer-year across 918 reporting utilities. Open a state or named utility to compare local outage minutes and SAIFI interruptions against the same filing year.

Compare utilities → About this data Methodology

Least & most reliable states

2023 · SAIDI, minutes of outage per customer-year

  1. Maine 1863
  2. Oklahoma 1280
  3. Michigan 1115
  4. District of Columbia 72
  5. Nebraska 73
  6. South Dakota 83

Maine runs 25.9× the outage minutes of District of Columbia.

918Utilities
51States
341Avg SAIDI (min)

The national picture

In the 2023 EIA filing the average U.S. customer went roughly 341 minutes without power, but state averages swing from about 72 minutes in District of Columbia to over 1863 in Maine.

341 min
customer-weighted national SAIDI (2023)
918
utilities with reliability filings
DC · 72
lowest state average (min/yr)
ME · 1863
highest state average (min/yr)

SAIDI = average minutes per year the typical customer is without power. Lower is better. Figures are customer-weighted state averages from EIA Form 861.

What to do next

  1. Compare two utilities side by side on SAIDI, SAIFI, and customer scale, shareable URL.
  2. Open District of Columbia (72 min state average) or browse all states.
  3. Read the SAIDI/SAIFI explainer before judging duration without frequency.
918
Utilities Tracked
50
States
4
Years of Data
341 min
Avg SAIDI (2023)

Most Reliable Utilities

View all

Lowest SAIDI (fewest outage minutes per year) - utilities serving 10,000+ customers

1
City of Kirkwood - (MO)
MO • Municipal
2 min
 2
Shakopee Public Utilities Comm
MN • Municipal
5 min
 3
Town of Braintree - (MA)
MA • Municipal
6 min
 4
Alameda Municipal Power
CA • Municipal
7 min
 5
Village of Freeport - (NY)
NY • Municipal
7 min
 6
Watertown Municipal Utilities
SD • Municipal
7 min
 7
City of Austin - (MN)
MN • Municipal
10 min
 8
Fall River Rural Elec Coop Inc
ID • Cooperative
10 min

Least Reliable Utilities

View all

Highest SAIDI (most outage minutes per year) - utilities serving 10,000+ customers

1
Tri-County Electric Coop, Inc (FL)
FL • Cooperative
10820 min
 2
Suwannee Valley Elec Coop Inc
FL • Cooperative
6825 min
 3
Upshur Rural Elec Coop Corp
TX • Cooperative
5663 min
 4
Eastern Maine Electric Coop
ME • Cooperative
4752 min
 5
Navasota Valley Elec Coop, Inc
TX • Cooperative
3969 min
 6
Austin Energy
TX • Municipal
3265 min
 7
Magnolia Electric Power Assn
MS • Cooperative
2768 min
 8
South Central Indiana REMC
IN • Cooperative
2766 min

Understanding Outage Metrics

Utilities report two key reliability metrics to the federal government every year. Here's what they mean.

SAIDI
System Average Interruption Duration Index

Measures the total average minutes per year a customer experiences outages. A SAIDI of 120 means the average customer loses power for 2 hours per year. Lower is better.

National average (2023): 341 minutes/year
SAIFI
System Average Interruption Frequency Index

Measures how many times per year the average customer experiences a power outage. A SAIFI of 1.5 means the average customer has 1.5 outages annually. Lower is better.

Data from EIA Form 861 annual utility survey

Browse by State

View all states
DC District of Columbia 72 min NE Nebraska 73 min SD South Dakota 83 min CO Colorado 99 min RI Rhode Island 105 min IA Iowa 105 min AZ Arizona 107 min DE Delaware 108 min NJ New Jersey 108 min MT Montana 119 min UT Utah 119 min OR Oregon 121 min NY New York 122 min MN Minnesota 127 min SC South Carolina 136 min ID Idaho 139 min NV Nevada 139 min WY Wyoming 156 min WA Washington 158 min FL Florida 160 min NM New Mexico 167 min CT Connecticut 169 min WI Wisconsin 184 min MD Maryland 191 min

Learn About Electric Utility Reliability

From understanding outage metrics to finding the most reliable utility in your area, our guides help you make sense of power reliability data.

SAIDI & SAIFI Explained

What outage metrics mean

Best & Worst Utilities

National reliability rankings

Reliability & Insurance

How outages affect premiums

Moving? Check First

Research before you relocate

National reliability dials

Customer-weighted national means from the latest EIA Form 861 reliability year, live from the same filings that power every utility page. Lower SAIDI/SAIFI is better; dials are registry figures, not outage advice.

National average SAIDI

Minutes without power per customer-year

341 SAIDI341 SAIDINat. avg 341341SAIDI341SAIDI

Good

Excluding major events

Day-to-day infrastructure reliability

119 SAIDI nMED119 SAIDI nMEDNat. avg 119119SAIDI nMED119SAIDI nMED

Good

National average SAIFI

Interruptions per customer-year

1 SAIFI1 SAIFINat. avg 11SAIFI1SAIFI

Good

Best-reliability states (avg SAIDI)

Lowest customer-weighted state means · minutes/year

Lower bars mean fewer outage minutes per customer-year across reporting utilities in that state

Source: U.S. EIA Form 861 As of 2026-08-30

Best-reliability states (avg SAIDI minutes/year)

DC71.9NE72.6SD83.4CO99.4RI104.6IA105.2AZ106.9DE108.2NJ108.3MT118.7UT118.7OR121.5
0 min400 min120 min reference120min341min
Customer-weighted national SAIDI is 341 minutes in the latest EIA Form 861 reliability year across 918 reporting utilities. Lower is better; this is a registry mean, not a guarantee for any address.

See the full ranking on /rankings/most-reliable or compare against the worst at /rankings/worst-outages.

Price vs. reliability: paying more doesn't guarantee fewer outages

Among these 40 of the largest U.S. electric utilities, revenue per customer and outage minutes (SAIDI) are independent figures: several of the priciest utilities sit above this sample's own average outage duration, not below it. Dashed lines mark this sample's average price and average SAIDI.

Cheap, less reliablePriciest and least reliableBest valuePays for it$1112.7$1884.6$2656.5$3428.4$4200.40624.81249.61874.42499.2Revenue/customer ($)SAIDI (min/yr)Consolidated Edison Co-NY Inc, Revenue/customer ($): $2062 · SAIDI (min/yr): 18.8Public Service Elec & Gas Co, Revenue/customer ($): $1743 · SAIDI (min/yr): 37.9Long Island Power Authority, Revenue/customer ($): $3179 · SAIDI (min/yr): 62.5Salt River Project, Revenue/customer ($): $2976 · SAIDI (min/yr): 70Nevada Power Co, Revenue/customer ($): $2989 · SAIDI (min/yr): 72Florida Power & Light Co, Revenue/customer ($): $2924 · SAIDI (min/yr): 78.3Tampa Electric Co, Revenue/customer ($): $3554 · SAIDI (min/yr): 82.6Commonwealth Edison Co, Revenue/customer ($): $1253 · SAIDI (min/yr): 93.3Arizona Public Service Co, Revenue/customer ($): $3164 · SAIDI (min/yr): 98.6Portland General Electric Co, Revenue/customer ($): $2536 · SAIDI (min/yr): 109Public Service Co of Colorado, Revenue/customer ($): $2114 · SAIDI (min/yr): 112.8Southern California Edison Co, Revenue/customer ($): $3490 · SAIDI (min/yr): 115.9Dominion Energy South Carolina, Inc, Revenue/customer ($): $3061 · SAIDI (min/yr): 117.5PECO Energy Co, Revenue/customer ($): $1565 · SAIDI (min/yr): 126Virginia Electric & Power Co, Revenue/customer ($): $3376 · SAIDI (min/yr): 141.1PPL Electric Utilities Corp, Revenue/customer ($): $2086 · SAIDI (min/yr): 149.7Northern States Power Co - Minnesota, Revenue/customer ($): $2863 · SAIDI (min/yr): 168.4City of San Antonio - (TX), Revenue/customer ($): $2890 · SAIDI (min/yr): 169.7Duke Energy Florida, LLC, Revenue/customer ($): $3271 · SAIDI (min/yr): 179.7Connecticut Light & Power Co, Revenue/customer ($): $2867 · SAIDI (min/yr): 189.8Baltimore Gas & Electric Co, Revenue/customer ($): $1964 · SAIDI (min/yr): 191Los Angeles Department of Water & Power, Revenue/customer ($): $3071 · SAIDI (min/yr): 198.8Puget Sound Energy Inc, Revenue/customer ($): $2232 · SAIDI (min/yr): 203Niagara Mohawk Power Corp., Revenue/customer ($): $1496 · SAIDI (min/yr): 207.9Entergy Louisiana LLC, Revenue/customer ($): $4060 · SAIDI (min/yr): 225.6Duke Energy Progress - (NC), Revenue/customer ($): $2701 · SAIDI (min/yr): 240.7Jersey Central Power & Lt Co, Revenue/customer ($): $1560 · SAIDI (min/yr): 266.5Wisconsin Electric Power Co, Revenue/customer ($): $2835 · SAIDI (min/yr): 272Alabama Power Co, Revenue/customer ($): $4006 · SAIDI (min/yr): 302.3Ohio Power Co, Revenue/customer ($): $2506 · SAIDI (min/yr): 326.1New York State Elec & Gas Corp, Revenue/customer ($): $1479 · SAIDI (min/yr): 341.2Duke Energy Carolinas, LLC, Revenue/customer ($): $2467 · SAIDI (min/yr): 342.7Georgia Power Co, Revenue/customer ($): $3370 · SAIDI (min/yr): 365.1Union Electric Co - (MO), Revenue/customer ($): $2532 · SAIDI (min/yr): 480Oklahoma Gas & Electric Co, Revenue/customer ($): $2665 · SAIDI (min/yr): 492Duke Energy Indiana, LLC, Revenue/customer ($): $3276 · SAIDI (min/yr): 644.8Pacific Gas & Electric Co., Revenue/customer ($): $4047 · SAIDI (min/yr): 711.7Consumers Energy Co - (MI), Revenue/customer ($): $2479 · SAIDI (min/yr): 913DTE Electric Company, Revenue/customer ($): $2543 · SAIDI (min/yr): 1542.3PacifiCorp, Revenue/customer ($): $2221 · SAIDI (min/yr): 2381.1
Revenue per customer vs. SAIDI among the 40 largest U.S. electric utilities by customer count (U.S. EIA Form 861). Dashed crosshairs mark this sample's own average price ($2,687) and average SAIDI (321.0 min).

Frequently Asked Questions

What is SAIDI and why does it matter?

SAIDI (System Average Interruption Duration Index) measures the total average minutes per year a customer experiences power outages. Lower SAIDI = more reliable. It's the standard metric utilities report to the EIA, making it the best apples-to-apples comparison across utilities and states.

What does "without major event days" mean?

SAIDI "without major event days" (also called SAIDI-nMED) excludes outages caused by major storms, hurricanes, and other catastrophic events. It better reflects a utility's day-to-day infrastructure reliability vs. its vulnerability to extreme weather. Both metrics are shown on utility detail pages.

Where does this data come from?

All reliability data is from the U.S. Energy Information Administration (EIA) Form 861 annual electric power industry survey. Utilities are legally required to file this data each year. ZIP code to utility mapping comes from OpenEI's utility rate database.

Why aren't all utilities included?

Reliability reporting (SAIDI/SAIFI) is voluntary in the EIA-861 survey. While most major utilities report, some smaller municipals and co-ops may not file reliability data every year. We display data for all {stats?.utilities_with_reliability?.toLocaleString()} utilities that filed reliability metrics.

About this data

How PlainUtility works, and why you can trust these numbers

What this site is

PlainUtility is a plain-language reference comparing power outage frequency and duration (SAIDI/SAIFI) for 918 electric utilities across all 50 states, with ZIP-to-utility service territory mapping, built from official federal energy data.

Editorial process

  1. Source. Download the EIA Form 861 Annual Electric Power Industry Report reliability data files, and merge in ZIP-to-utility service territory mappings from the Department of Energy's OpenEI Utility Rate Database (URDB).
  2. Verify. Utilities are legally required to file EIA-861 data each year (reliability metrics specifically are voluntary); we display data only for utilities that actually filed reliability figures, with no invented or interpolated values.
  3. Publish. SAIDI, SAIDI-nMED, and SAIFI figures and state-level aggregates are computed directly from the EIA dataset, with ZIP-code lookups traced to OpenEI's service-territory files.

Editorial independence & corrections

The PlainUtility is independent and not affiliated with the U.S. Energy Information Administration, the Department of Energy, or any electric utility. Found an error or a stale figure? File a correction via the corrections pathway, we respond within 72 hours and publish material fixes on the data changelog. See our methodology for full source attribution and refresh cadence.

Frequently asked

What is SAIDI and why does it matter?

SAIDI (System Average Interruption Duration Index) measures the total average minutes per year a customer experiences power outages. Lower SAIDI = more reliable. It's the standard metric utilities report to the EIA, making it the best apples-to-apples comparison across utilities and states.

What does "without major event days" mean?

SAIDI "without major event days" (also called SAIDI-nMED) excludes outages caused by major storms, hurricanes, and other catastrophic events. It better reflects a utility's day-to-day infrastructure reliability vs. its vulnerability to extreme weather. Both metrics are shown on utility detail pages.

Where does this data come from?

All reliability data is from the U.S. Energy Information Administration (EIA) Form 861 annual electric power industry survey. Utilities are legally required to file this data each year. ZIP code to utility mapping comes from OpenEI's utility rate database.

Why aren't all utilities included?

Reliability reporting (SAIDI/SAIFI) is voluntary in the EIA-861 survey. While most major utilities report, some smaller municipals and co-ops may not file reliability data every year. We display data for all {stats?.utilities_with_reliability?.toLocaleString()} utilities that filed reliability metrics.

Source: U.S. Energy Information Administration (EIA) Form 861 Annual Electric Power Industry Report, reliability · 2020-2023 ZIP-to-utility territory joins also use DOE OpenEI Utility Rate Database service-territory files.

According to the U.S. Energy Information Administration (EIA), electric utilities publish SAIDI and SAIFI reliability metrics in Form 861 annual filings. Every figure on PlainUtility is rebuilt from those federal tables; no number is typed in by an editor. Homepage national and state SAIDI averages are customer-weighted rebuilds of the same Form 861 reliability cohort used on utility and state pages. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-30.