County annual report · FIPS 29510
2022 St. Louis city, MO Power Outage Report
In 2022, customers in St. Louis city, MO went without power for an average of 18.5 hours, a total of 2.0M customer-hours (Missouri average 3.5 hours). That ranks 2nd worst of 114 Missouri counties and 363rd 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. Louis city, 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 | July 25, 2022 11:15 | August 20, 2022 05:00 | 25d 17h | 21,020 | 474K |
| 2 | June 5, 2022 11:15 | June 29, 2022 08:15 | 23d 21h | 18,966 | 326K |
| 3 | May 15, 2022 11:15 | May 25, 2022 11:45 | 10d | 9,945 | 160K |
| 4 | November 14, 2022 10:45 | November 16, 2022 09:30 | 1d 22h | 6,901 | 9,662 |
| 5 | August 23, 2022 13:30 | September 1, 2022 11:00 | 8d 21h | 5,781 | 70K |
| 6 | May 25, 2022 13:00 | June 2, 2022 09:15 | 7d 20h | 5,377 | 57K |
| 7 | March 20, 2022 12:15 | March 27, 2022 23:45 | 7d 11h | 4,986 | 40K |
| 8 | March 9, 2022 10:00 | March 11, 2022 09:15 | 1d 23h | 4,465 | 11K |
| 9 | April 30, 2022 09:45 | May 4, 2022 05:30 | 3d 19h | 3,889 | 28K |
| 10 | October 11, 2022 11:00 | October 15, 2022 06:00 | 3d 19h | 3,780 | 28K |
Outage episodes by size in 2022: 114 reached 100+ customers, 46 reached 1,000+ customers, 2 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. Louis city 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 |
| 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 ÷ 106,898 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. Louis city has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), St. Louis city, 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-louis-city