County annual report · FIPS 29203
2025 Shannon County, MO Power Outage Report
In 2025, customers in Shannon County, MO went without power for an average of 20.0 hours, a total of 64K customer-hours (Missouri average 8.9 hours). That ranks 17th worst of 115 Missouri counties and 349th 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 Shannon 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 20:45 | March 20, 2025 20:30 | 5d 23h | 845 | 15K |
| 2 | October 22, 2025 06:15 | October 22, 2025 07:30 | 1h 15m | 749 | 936 |
| 3 | September 15, 2025 02:00 | September 15, 2025 07:30 | 5h 30m | 696 | 2,442 |
| 4 | January 5, 2025 11:00 | January 8, 2025 17:15 | 3d 6h | 633 | 10K |
| 5 | September 23, 2025 15:45 | September 23, 2025 19:00 | 3h 15m | 571 | 840 |
| 6 | March 5, 2025 08:00 | March 5, 2025 23:45 | 15h 45m | 530 | 2,629 |
| 7 | June 27, 2025 21:00 | June 28, 2025 01:00 | 4h | 463 | 871 |
| 8 | October 8, 2025 20:45 | October 9, 2025 01:00 | 4h 15m | 412 | 1,751 |
| 9 | April 2, 2025 20:30 | April 3, 2025 00:15 | 3h 45m | 411 | 1,541 |
| 10 | May 20, 2025 03:30 | May 21, 2025 22:00 | 1d 18h | 360 | 4,393 |
Outage episodes by size in 2025: 30 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 Shannon 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 |
|---|---|---|---|---|---|
| Black River Electric Coop - (MO) | 2024 | 19.4 hrs | - | 7.5 hrs | - |
| Intercounty Electric Coop Assn - (MO) | 2024 | 4.5 hrs | 1.72 | 3.0 hrs | 1.45 |
| Ozark Border Electric Coop | - | - | - | - | - |
| Howell-Oregon Elec Coop, Inc | - | - | - | - | - |
| City of Winona - (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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,195 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. Shannon County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Shannon 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/shannon-county