County annual report · FIPS 29219
2021 Warren County, MO Power Outage Report
In 2021, customers in Warren County, MO went without power for an average of 18.8 hours, a total of 270K customer-hours (Missouri average 4.5 hours). That ranks 8th worst of 115 Missouri counties and 460th 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 Warren 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 | July 10, 2021 04:00 | July 14, 2021 17:45 | 4d 13h | 9,825 | 159K |
| 2 | August 12, 2021 23:00 | August 16, 2021 18:15 | 3d 19h | 5,059 | 35K |
| 3 | August 23, 2021 20:30 | August 24, 2021 04:30 | 8h | 3,080 | 5,382 |
| 4 | October 11, 2021 14:00 | October 12, 2021 20:00 | 1d 6h | 2,975 | 4,503 |
| 5 | August 8, 2021 20:30 | August 9, 2021 21:00 | 1d | 2,510 | 5,846 |
| 6 | June 20, 2021 22:45 | June 21, 2021 19:00 | 20h 15m | 2,149 | 8,548 |
| 7 | July 24, 2021 18:45 | July 24, 2021 20:30 | 1h 45m | 1,422 | 2,481 |
| 8 | July 14, 2021 19:15 | July 14, 2021 23:00 | 3h 45m | 1,372 | 350 |
| 9 | July 27, 2021 13:45 | July 27, 2021 19:30 | 5h 45m | 863 | 832 |
| 10 | January 30, 2021 19:45 | January 31, 2021 00:45 | 5h | 852 | 4,252 |
Outage episodes by size in 2021: 46 reached 100+ customers, 8 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 Warren 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 |
| Cuivre River Electric Coop Inc | 2021 | 6.2 hrs | 1.56 | 2.2 hrs | 1.02 |
| Ameren | - | - | - | - | - |
| Callaway Electric Cooperative | - | - | - | - | - |
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 ÷ 14,348 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. Warren County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Warren 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/warren-county