County annual report · FIPS 29185
2018 St. Clair County, MO Power Outage Report
In 2018, customers in St. Clair County, MO went without power for an average of 2.7 hours, a total of 10K customer-hours (Missouri average 1.7 hours). That ranks 30th worst of 96 Missouri counties and 1605th of 2,798 nationally.
Compared with MO, the US and 2017
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in St. Clair County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 15, 2018 05:30 | September 15, 2018 11:30 | 6h | 736 | 4,416 |
| 2 | September 26, 2018 16:15 | September 26, 2018 18:15 | 2h | 736 | 220 |
| 3 | November 3, 2018 20:15 | November 3, 2018 21:45 | 1h 30m | 730 | 1,095 |
| 4 | July 19, 2018 20:30 | July 20, 2018 23:00 | 1d 2h | 264 | 3,548 |
| 5 | May 26, 2018 00:30 | May 26, 2018 02:15 | 1h 45m | 125 | 188 |
| 6 | August 8, 2018 11:45 | August 8, 2018 20:30 | 8h 45m | 90 | 272 |
| 7 | June 2, 2018 13:45 | June 2, 2018 17:45 | 4h | 63 | 54 |
| 8 | June 18, 2018 17:15 | June 18, 2018 20:30 | 3h 15m | 62 | 129 |
| 9 | August 7, 2018 17:45 | August 7, 2018 18:15 | 30m | 40 | 20 |
| 10 | August 7, 2018 22:45 | August 8, 2018 01:45 | 3h | 29 | 30 |
Outage episodes by size in 2018: 5 reached 100+ customers, 0 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. Clair County reported on EIA Form 861 for 2018, 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 |
|---|---|---|---|---|---|
| Evergy Metro | 2018 | 2.6 hrs | 1.00 | 72 min | 0.78 |
| Evergy Missouri West | 2018 | 3.0 hrs | 1.23 | 90 min | 0.95 |
| Empire District Electric Co | 2018 | 2.1 hrs | 1.34 | 1.5 hrs | 1.05 |
| Southwest Electric Coop, Inc | 2018 | 2.5 hrs | 1.22 | 1.7 hrs | 0.99 |
| Sac-Osage Electric Coop Inc | - | - | - | - | - |
| Osage Valley Elec Coop Assn | - | - | - | - | - |
| City of Osceola - (MO) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 80% of Missouri's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,837 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. Clair County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), St. Clair County, MO annual power outage report, 2018, 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/2018/missouri/st-clair-county