County annual report · FIPS 29183
2022 St. Charles County, MO Power Outage Report
In 2022, customers in St. Charles County, MO went without power for an average of 1.6 hours, a total of 287K customer-hours (Missouri average 3.5 hours). That ranks 91st worst of 114 Missouri counties and 2468th of 2,976 nationally.
Compared with MO, the US and 2021
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in St. Charles County, 2022
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 17, 2022 09:45 | June 19, 2022 14:15 | 2d 4h | 11,021 | 41K |
| 2 | March 30, 2022 16:00 | March 30, 2022 19:00 | 3h | 6,934 | 1,747 |
| 3 | October 24, 2022 21:00 | October 26, 2022 07:15 | 1d 10h | 5,144 | 13K |
| 4 | July 26, 2022 05:15 | July 28, 2022 11:15 | 2d 6h | 4,397 | 37K |
| 5 | July 17, 2022 13:30 | July 18, 2022 11:30 | 22h | 3,081 | 6,259 |
| 6 | April 18, 2022 02:15 | April 18, 2022 04:30 | 2h 15m | 3,046 | 2,076 |
| 7 | August 3, 2022 09:45 | August 5, 2022 02:30 | 1d 16h | 2,921 | 10K |
| 8 | April 3, 2022 14:15 | April 3, 2022 18:00 | 3h 45m | 2,735 | 5,115 |
| 9 | April 13, 2022 07:30 | April 14, 2022 16:45 | 1d 9h | 2,455 | 2,110 |
| 10 | December 22, 2022 21:45 | December 24, 2022 07:45 | 1d 10h | 2,160 | 4,328 |
Outage episodes by size in 2022: 109 reached 100+ customers, 32 reached 1,000+ customers, 1 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 St. Charles County reported on EIA Form 861 for 2022, 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) | 2022 | 2.5 hrs | 0.92 | 1.5 hrs | 0.73 |
| Cuivre River Electric Coop Inc | 2022 | 2.7 hrs | 1.15 | 2.1 hrs | 0.97 |
| Ameren | - | - | - | - | - |
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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 181,803 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. St. Charles County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), St. Charles County, MO annual power outage report, 2022, 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/2022/missouri/st-charles-county