County annual report · FIPS 29079
2021 Grundy County, MO Power Outage Report
In 2021, customers in Grundy County, MO went without power for an average of 1.2 hours, a total of 8,275 customer-hours (Missouri average 4.5 hours). That ranks 104th worst of 115 Missouri counties and 2595th of 2,974 nationally.
Compared with MO, the US and 2020
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Grundy County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 25, 2021 02:15 | June 26, 2021 04:15 | 1d 2h | 625 | 5,775 |
| 2 | December 16, 2021 01:00 | December 16, 2021 19:00 | 18h | 217 | 732 |
| 3 | December 24, 2021 10:30 | December 24, 2021 14:30 | 4h | 213 | 682 |
| 4 | June 29, 2021 16:00 | June 29, 2021 19:30 | 3h 30m | 61 | 99 |
| 5 | September 19, 2021 00:30 | September 19, 2021 06:30 | 6h | 57 | 44 |
| 6 | December 8, 2021 21:15 | December 8, 2021 23:00 | 1h 45m | 54 | 95 |
| 7 | June 20, 2021 15:15 | June 20, 2021 16:45 | 1h 30m | 47 | 71 |
| 8 | June 24, 2021 21:00 | June 24, 2021 21:45 | 45m | 42 | 22 |
| 9 | February 4, 2021 16:30 | February 4, 2021 18:00 | 1h 30m | 28 | 36 |
| 10 | November 24, 2021 18:45 | November 24, 2021 19:15 | 30m | 23 | 12 |
Outage episodes by size in 2021: 3 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 2021, 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 | 2021 | 5.2 hrs | 1.86 | 2.3 hrs | 1.22 |
| 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 95% of Missouri's customers in 2021; 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, 2021, 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/2021/missouri/grundy-county