EIA Form 861 · 2023 filings

Reliability rankings from the live EIA corpus

According to the U.S. Energy Information Administration's EIA Form 861 2023 filings, these state and utility tables sort by interruption duration (SAIDI) using the same 918 utility records PlainUtility uses on every detail page.

Most reliable states → Worst outage states

Answer first

District of Columbia leads state averages at 71.9 minutes SAIDI in the 2023 EIA filing; Maine sits at 1863.0 minutes versus a customer-weighted national utility average of 341 minutes.

51
States ranked
2023
Latest filing year
918
Utilities with SAIDI/SAIFI
341 min
Customer-weighted national SAIDI

Corpus vintage 2026-08-30 · state averages are customer-weighted across reporting utilities; utility lists require ≥10,000 customers.

Lowest-SAIDI states (2023) Horizontal bar chart of the top 5 items by value (min). Lowest-SAIDI states (2023) Top 5 1. District of Columbia 71.9 min 2. Nebraska 72.6 min 3. South Dakota 83.4 min 4. Colorado 99.4 min 5. Rhode Island 104.6 min Shorter bars = fewer outage minutes per customer per year.Lower SAIDI is better, not a broader quality score.

Minutes per interruption by ownership (CAIDI)

CAIDI ≈ SAIDI ÷ SAIFI: IEEE minutes per outage event. Rankings that look similar on annual minutes can diverge here: IOU averages the longest restoration at 254 minutes per event (2023).

Mean CAIDI by ownership (2023)

1. IOU254.4 min2. Cooperative210.8 min3. Municipal132.8 min
Unweighted mean across filers with both SAIDI and SAIFI. Longer bars = longer average restoration once an outage starts. Distinct from tools-hub SAIDI/SAIFI pair charts.

Most Reliable States

Full state table sorted by lowest average SAIDI, fewest outage minutes per customer per year.

Worst Outage States

Same corpus, reversed, highest average SAIDI and the within-state utility spread.

SAIDI year-over-year changes

Utilities ranked by adjacent-year SAIDI-nMED movement, who got less reliable, who improved.

Browse states by reliability

DC 72 min NE 73 min SD 83 min CO 99 min RI 105 min IA 105 min AZ 107 min DE 108 min NJ 108 min MT 119 min UT 119 min OR 121 min NY 122 min MN 127 min SC 136 min ID 139 min NV 139 min WY 156 min WA 158 min FL 160 min NM 167 min CT 169 min WI 184 min MD 191 min

Lowest state SAIDI (2023)

1. District of Columbia71.87 min2. Nebraska72.61 min3. South Dakota83.45 min4. Colorado99.38 min5. Rhode Island104.59 min6. Iowa105.17 min7. Arizona106.86 min8. Delaware108.15 min
Customer-weighted state averages. Lower minutes per customer per year is better.
0%100%63%
32 of 51 reporting states sit below the 341-minute customer-weighted national utility SAIDI (2023). State averages and the national utility average use different denominators.

Most reliable utilities (≥10k customers, 2023)

1. City of Kirkwood1.63 min2. Shakopee Public Utilities…4.89 min3. Town of Braintree5.82 min4. Alameda Municipal Power6.69 min5. Village of Freeport7.34 min6. Watertown Municipal Utili…7.42 min7. City of Austin9.61 min8. Fall River Rural Elec Coo…9.97 min
Top utilities by fewest SAIDI minutes. Lower is better, filtered to ≥10,000 customers to avoid single-event spikes at tiny reporters.

More reliable utilities (ranks 9-12)

Least reliable utilities

Three views share one EIA Form 861 corpus: state averages (best → worst SAIDI), large-utility leaders, and large-utility laggards. Cross-check a high-SAIDI state against its municipal utilities, within-state spread is often as wide as between-state spread. Methodology and MED treatment live on the methodology page; metric definitions live in the SAIDI/SAIFI explainer.

For a specific address, the actionable figure is the utility that serves that ZIP, not the state average. Start from the homepage lookup, then read the utility trend chart.

Download the EIA Form 861 reliability extract cited on this page: eia-form-861-reliability-statistics.csv (CC BY 4.0).

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. Rankings are computed directly from EIA Form 861 reliability files, no ranking figure is typed by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2023.