County annual report · FIPS 29131
2025 Miller County, MO Power Outage Report
In 2025, customers in Miller County, MO went without power for an average of 4.8 hours, a total of 60K customer-hours (Missouri average 8.9 hours). That ranks 61st worst of 115 Missouri counties and 1567th 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 Miller 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 | May 19, 2025 07:30 | May 19, 2025 20:45 | 13h 15m | 4,230 | 2,854 |
| 2 | June 3, 2025 22:45 | June 5, 2025 06:15 | 1d 7h | 2,795 | 22K |
| 3 | January 7, 2025 06:45 | January 7, 2025 20:00 | 13h 15m | 1,527 | 7,656 |
| 4 | March 19, 2025 14:45 | March 20, 2025 01:45 | 11h | 603 | 1,982 |
| 5 | December 11, 2025 13:45 | December 11, 2025 15:00 | 1h 15m | 572 | 715 |
| 6 | April 3, 2025 19:15 | April 4, 2025 00:15 | 5h | 544 | 743 |
| 7 | September 18, 2025 23:45 | September 19, 2025 19:00 | 19h 15m | 516 | 2,508 |
| 8 | March 14, 2025 18:15 | March 16, 2025 03:15 | 1d 9h | 471 | 4,042 |
| 9 | November 24, 2025 16:45 | November 24, 2025 20:15 | 3h 30m | 393 | 548 |
| 10 | November 3, 2025 21:00 | November 3, 2025 21:45 | 45m | 372 | 279 |
Outage episodes by size in 2025: 26 reached 100+ customers, 3 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 Miller 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 |
| Co-Mo Electric Coop Inc | 2024 | 2.0 hrs | 0.87 | 74 min | 0.72 |
| Three Rivers Electric Coop | 2024 | 2.3 hrs | 0.98 | 2.3 hrs | 0.98 |
| Ameren | - | - | - | - | - |
| 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 ÷ 12,538 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. Miller County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Miller 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/miller-county