County annual report · FIPS 29079
2025 Grundy County, MO Power Outage Report
In 2025, customers in Grundy County, MO went without power for an average of 0.4 hours, a total of 2,823 customer-hours (Missouri average 8.9 hours). That ranks 114th worst of 115 Missouri counties and 2891st 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 Grundy 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 21:30 | May 20, 2025 01:30 | 4h | 272 | 332 |
| 2 | November 26, 2025 16:30 | November 26, 2025 18:45 | 2h 15m | 137 | 189 |
| 3 | October 19, 2025 03:30 | October 19, 2025 10:00 | 6h 30m | 135 | 878 |
| 4 | March 20, 2025 23:30 | March 21, 2025 05:15 | 5h 45m | 134 | 315 |
| 5 | July 28, 2025 11:00 | July 28, 2025 14:00 | 3h | 55 | 165 |
| 6 | December 10, 2025 03:45 | December 10, 2025 04:00 | 15m | 46 | 12 |
| 7 | September 27, 2025 21:00 | September 27, 2025 22:15 | 1h 15m | 41 | 51 |
| 8 | September 18, 2025 05:15 | September 18, 2025 08:00 | 2h 45m | 39 | 107 |
| 9 | July 21, 2025 10:45 | July 21, 2025 14:00 | 3h 15m | 36 | 52 |
| 10 | June 21, 2025 10:00 | June 21, 2025 13:45 | 3h 45m | 29 | 109 |
Outage episodes by size in 2025: 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 Grundy 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 |
|---|---|---|---|---|---|
| Evergy Missouri West | 2024 | 5.1 hrs | 1.85 | 2.0 hrs | 1.25 |
| Trenton Municipal Utilities - (MO) | 2018 | 13 min | 0.17 | - | - |
| Grundy Electric Coop, Inc | - | - | - | - | - |
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 ÷ 7,058 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. Grundy County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Grundy 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/grundy-county