County annual report · FIPS 29183
2017 St. Charles County, MO Power Outage Report
In 2017, customers in St. Charles County, MO went without power for an average of 1.2 hours, a total of 210K customer-hours (Missouri average 2.8 hours). That ranks 56th worst of 106 Missouri counties and 1975th of 2,786 nationally.
Compared with MO, the US and 2016
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in St. Charles County, 2017
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 23, 2017 07:15 | July 25, 2017 23:15 | 2d 16h | 6,563 | 47K |
| 2 | November 7, 2017 13:00 | November 7, 2017 13:15 | 15m | 6,206 | 1,552 |
| 3 | March 7, 2017 03:00 | March 7, 2017 21:30 | 18h 30m | 4,961 | 16K |
| 4 | April 29, 2017 19:30 | May 1, 2017 01:00 | 1d 5h | 3,145 | 17K |
| 5 | August 1, 2017 13:30 | August 1, 2017 22:00 | 8h 30m | 3,027 | 4,046 |
| 6 | March 23, 2017 13:45 | March 23, 2017 20:15 | 6h 30m | 2,856 | 825 |
| 7 | October 26, 2017 00:15 | October 26, 2017 05:30 | 5h 15m | 2,173 | 1,978 |
| 8 | October 30, 2017 12:30 | October 30, 2017 22:15 | 9h 45m | 2,135 | 1,279 |
| 9 | November 26, 2017 13:30 | November 27, 2017 06:15 | 16h 45m | 2,122 | 1,531 |
| 10 | October 7, 2017 17:15 | October 8, 2017 04:45 | 11h 30m | 2,031 | 2,205 |
Outage episodes by size in 2017: 93 reached 100+ customers, 27 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 2017, 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) | 2017 | 4.1 hrs | 1.04 | 85 min | 0.68 |
| Cuivre River Electric Coop Inc | 2017 | 4.2 hrs | 1.22 | 89 min | 0.76 |
| 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 n/a of Missouri's customers in 2017; 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, 2017, 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/2017/missouri/st-charles-county