County annual report · FIPS 29125
2025 Maries County, MO Power Outage Report
In 2025, customers in Maries County, MO went without power for an average of 4.6 hours, a total of 15K customer-hours (Missouri average 8.9 hours). That ranks 63rd worst of 115 Missouri counties and 1602nd of 3,000 nationally.
Compared with MO, the US and 2024
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Maries County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 14, 2025 19:15 | March 16, 2025 00:30 | 1d 5h | 1,168 | 6,442 |
| 2 | December 10, 2025 14:45 | December 10, 2025 19:15 | 4h 30m | 706 | 518 |
| 3 | March 23, 2025 06:30 | March 23, 2025 12:45 | 6h 15m | 592 | 974 |
| 4 | August 17, 2025 18:45 | August 18, 2025 01:00 | 6h 15m | 406 | 216 |
| 5 | January 10, 2025 18:45 | January 10, 2025 21:15 | 2h 30m | 395 | 101 |
| 6 | November 1, 2025 22:00 | November 1, 2025 22:45 | 45m | 197 | 148 |
| 7 | March 13, 2025 05:15 | March 13, 2025 08:45 | 3h 30m | 155 | 427 |
| 8 | September 19, 2025 13:00 | September 19, 2025 16:30 | 3h 30m | 129 | 99 |
| 9 | April 4, 2025 18:45 | April 5, 2025 00:45 | 6h | 114 | 240 |
| 10 | March 5, 2025 12:15 | March 5, 2025 19:45 | 7h 30m | 75 | 120 |
Outage episodes by size in 2025: 9 reached 100+ customers, 1 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 Maries County reported on EIA Form 861 for 2025, 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) | 2024 | 2.5 hrs | 0.77 | 1.6 hrs | 0.67 |
| Intercounty Electric Coop Assn - (MO) | 2024 | 4.5 hrs | 1.72 | 3.0 hrs | 1.45 |
| Three Rivers Electric Coop | 2024 | 2.3 hrs | 0.98 | 2.3 hrs | 0.98 |
| Gascosage Electric Coop | - | - | - | - | - |
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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,269 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. Maries County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Maries County, MO annual power outage report, 2025, 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/2025/missouri/maries-county