County annual report · FIPS 29151
2021 Osage County, MO Power Outage Report
In 2021, customers in Osage County, MO went without power for an average of 3.1 hours, a total of 19K customer-hours (Missouri average 4.5 hours). That ranks 64th worst of 115 Missouri counties and 1802nd 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 Osage 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 | May 1, 2021 05:15 | May 1, 2021 08:15 | 3h | 1,212 | 3,636 |
| 2 | October 24, 2021 08:45 | October 24, 2021 13:45 | 5h | 618 | 2,340 |
| 3 | December 11, 2021 00:30 | December 11, 2021 19:30 | 19h | 552 | 3,574 |
| 4 | July 7, 2021 00:00 | July 7, 2021 01:30 | 1h 30m | 513 | 768 |
| 5 | October 11, 2021 11:45 | October 11, 2021 15:15 | 3h 30m | 471 | 692 |
| 6 | June 7, 2021 19:45 | June 7, 2021 22:45 | 3h | 278 | 418 |
| 7 | November 23, 2021 07:45 | November 23, 2021 08:00 | 15m | 274 | 69 |
| 8 | January 1, 2021 11:45 | January 1, 2021 22:45 | 11h | 228 | 716 |
| 9 | July 3, 2021 14:15 | July 3, 2021 16:45 | 2h 30m | 224 | 114 |
| 10 | October 17, 2021 11:30 | October 17, 2021 12:15 | 45m | 208 | 104 |
Outage episodes by size in 2021: 16 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 Osage 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 |
|---|---|---|---|---|---|
| Union Electric Co - (MO) | 2021 | 4.9 hrs | 1.02 | 1.5 hrs | 0.69 |
| Three Rivers Electric Coop | 2021 | 1.6 hrs | 0.72 | 71 min | 0.65 |
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 ÷ 5,974 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. Osage County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Osage 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/osage-county