County annual report · FIPS 29211
2023 Sullivan County, MO Power Outage Report
In 2023, customers in Sullivan County, MO went without power for an average of 1.7 hours, a total of 3,128 customer-hours (Missouri average 9.4 hours). That ranks 99th worst of 114 Missouri counties and 2391st of 2,977 nationally.
Compared with MO, the US and 2022
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Sullivan County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 3, 2023 07:15 | July 3, 2023 07:45 | 30m | 552 | 274 |
| 2 | June 29, 2023 14:15 | June 29, 2023 21:45 | 7h 30m | 544 | 2,053 |
| 3 | April 20, 2023 05:15 | April 20, 2023 07:00 | 1h 45m | 174 | 305 |
| 4 | June 14, 2023 21:45 | June 14, 2023 23:00 | 1h 15m | 174 | 176 |
| 5 | August 2, 2023 05:15 | August 2, 2023 08:30 | 3h 15m | 52 | 132 |
| 6 | April 19, 2023 18:00 | April 19, 2023 18:45 | 45m | 21 | 16 |
| 7 | July 30, 2023 12:45 | July 30, 2023 15:15 | 2h 30m | 17 | 43 |
| 8 | June 10, 2023 08:45 | June 10, 2023 10:15 | 1h 30m | 8 | 12 |
| 9 | June 17, 2023 05:00 | June 17, 2023 08:15 | 3h 15m | 8 | 26 |
| 10 | May 19, 2023 15:30 | May 19, 2023 17:00 | 1h 30m | 7 | 11 |
Outage episodes by size in 2023: 4 reached 100+ customers, 0 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Sullivan County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Union Electric Co - (MO) | 2023 | 8.0 hrs | 1.18 | 1.6 hrs | 0.67 |
| Grundy Electric Coop, Inc | - | - | - | - | - |
| Macon Electric Coop | - | - | - | - | - |
| Tri-County Electric Coop Assn (MO) | - | - | - | - | - |
| North Central MO Elec Coop Inc | - | - | - | - | - |
| City of Milan - (MO) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Missouri's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,796 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Sullivan County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sullivan County, MO annual power outage report, 2023, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2023/missouri/sullivan-county