County annual report · FIPS 29510
2019 St. Louis city, MO Power Outage Report
In 2019, customers in St. Louis city, MO went without power for an average of 3.1 hours, a total of 334K customer-hours (Missouri average 3.8 hours). That ranks 48th worst of 115 Missouri counties and 1595th 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. Louis city, 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 | April 14, 2019 03:45 | April 18, 2019 03:30 | 3d 23h | 5,533 | 84K |
| 2 | June 9, 2019 20:00 | June 11, 2019 01:15 | 1d 5h | 5,237 | 10K |
| 3 | January 3, 2019 14:15 | January 4, 2019 03:30 | 13h 15m | 4,625 | 2,654 |
| 4 | April 30, 2019 16:15 | May 1, 2019 21:45 | 1d 5h | 3,047 | 12K |
| 5 | July 29, 2019 13:45 | July 30, 2019 01:00 | 11h 15m | 3,047 | 2,401 |
| 6 | October 3, 2019 13:30 | October 4, 2019 04:15 | 14h 45m | 2,594 | 4,638 |
| 7 | May 11, 2019 12:45 | May 12, 2019 04:00 | 15h 15m | 1,677 | 2,156 |
| 8 | March 14, 2019 12:15 | March 15, 2019 06:45 | 18h 30m | 1,640 | 6,866 |
| 9 | February 6, 2019 15:15 | February 7, 2019 04:45 | 13h 30m | 1,520 | 3,112 |
| 10 | January 29, 2019 11:45 | January 30, 2019 03:30 | 15h 45m | 1,445 | 3,752 |
Outage episodes by size in 2019: 118 reached 100+ customers, 19 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. Louis city 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 |
| 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 ÷ 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, 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-louis-city