County annual report · FIPS 29183
2019 St. Charles County, MO Power Outage Report
In 2019, customers in St. Charles County, MO went without power for an average of 1.8 hours, a total of 334K customer-hours (Missouri average 3.8 hours). That ranks 69th worst of 115 Missouri counties and 2111th of 2,945 nationally.
Compared with MO, the US and 2018
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in St. Charles County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 30, 2019 12:45 | March 30, 2019 23:00 | 10h 15m | 9,660 | 8,183 |
| 2 | August 12, 2019 12:00 | August 14, 2019 10:00 | 1d 22h | 7,870 | 23K |
| 3 | July 17, 2019 13:45 | July 18, 2019 21:45 | 1d 8h | 6,232 | 9,668 |
| 4 | July 11, 2019 00:15 | July 12, 2019 04:00 | 1d 3h | 5,842 | 43K |
| 5 | May 21, 2019 23:00 | May 22, 2019 23:30 | 1d | 5,615 | 11K |
| 6 | July 7, 2019 01:30 | July 7, 2019 14:15 | 12h 45m | 4,289 | 6,031 |
| 7 | February 24, 2019 05:00 | February 25, 2019 01:15 | 20h 15m | 3,736 | 14K |
| 8 | November 27, 2019 03:00 | November 28, 2019 03:45 | 1d | 2,550 | 18K |
| 9 | July 5, 2019 11:00 | July 6, 2019 04:45 | 17h 45m | 2,303 | 1,682 |
| 10 | July 3, 2019 22:15 | July 4, 2019 14:00 | 15h 45m | 2,075 | 3,052 |
Outage episodes by size in 2019: 126 reached 100+ customers, 39 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 St. Charles County reported on EIA Form 861 for 2019, 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) | 2018 | 2.3 hrs | 0.85 | 86 min | 0.72 |
| Cuivre River Electric Coop Inc | 2018 | 2.0 hrs | 0.86 | 1.5 hrs | 0.65 |
| 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 2019; 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, 2019, 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/2019/missouri/st-charles-county