County annual report · FIPS 29510
2024 St. Louis city, MO Power Outage Report
In 2024, customers in St. Louis city, MO went without power for an average of 14.3 hours, a total of 1.5M customer-hours (Missouri average 5.8 hours). That ranks 16th worst of 114 Missouri counties and 683rd of 2,990 nationally.
Compared with MO, the US and 2023
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in St. Louis city, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 24, 2024 09:15 | May 30, 2024 09:15 | 6d | 14,527 | 176K |
| 2 | April 14, 2024 06:15 | April 22, 2024 10:45 | 8d 4h | 12,824 | 95K |
| 3 | November 3, 2024 07:45 | November 7, 2024 06:15 | 3d 22h | 7,506 | 98K |
| 4 | July 2, 2024 06:45 | August 3, 2024 09:45 | 32d 3h | 6,345 | 208K |
| 5 | January 12, 2024 08:15 | January 17, 2024 11:45 | 5d 3h | 5,751 | 63K |
| 6 | September 20, 2024 11:15 | October 1, 2024 09:15 | 10d 22h | 5,040 | 82K |
| 7 | April 10, 2024 08:45 | April 13, 2024 07:15 | 2d 22h | 4,357 | 17K |
| 8 | April 26, 2024 13:45 | May 12, 2024 03:15 | 15d 13h | 4,346 | 87K |
| 9 | March 25, 2024 05:30 | March 29, 2024 06:30 | 4d 1h | 4,196 | 19K |
| 10 | August 11, 2024 02:45 | August 15, 2024 05:45 | 4d 3h | 4,068 | 8,832 |
Outage episodes by size in 2024: 131 reached 100+ customers, 43 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 2024, 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) | 2024 | 2.5 hrs | 0.77 | 1.6 hrs | 0.67 |
| 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 2024; 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, 2024, 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/2024/missouri/st-louis-city