County annual report · FIPS 29510
2017 St. Louis city, MO Power Outage Report
In 2017, customers in St. Louis city, MO went without power for an average of 1.0 hours, a total of 102K customer-hours (Missouri average 2.8 hours). That ranks 61st worst of 106 Missouri counties and 2056th 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. Louis city, 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 | October 26, 2017 12:15 | October 28, 2017 11:30 | 1d 23h | 3,808 | 1,551 |
| 2 | January 21, 2017 15:00 | January 21, 2017 21:00 | 6h | 3,191 | 808 |
| 3 | April 11, 2017 10:00 | April 12, 2017 05:30 | 19h 30m | 3,188 | 4,950 |
| 4 | May 2, 2017 13:15 | May 3, 2017 03:30 | 14h 15m | 2,920 | 1,619 |
| 5 | January 3, 2017 15:00 | January 4, 2017 04:00 | 13h | 1,942 | 1,912 |
| 6 | October 28, 2017 20:30 | November 1, 2017 03:45 | 3d 7h | 1,531 | 3,524 |
| 7 | April 25, 2017 13:15 | April 26, 2017 06:45 | 17h 30m | 1,431 | 2,185 |
| 8 | November 15, 2017 13:30 | November 22, 2017 11:15 | 6d 21h | 1,216 | 9,248 |
| 9 | November 22, 2017 19:30 | November 23, 2017 10:45 | 15h 15m | 1,122 | 2,283 |
| 10 | March 21, 2017 14:00 | March 21, 2017 23:00 | 9h | 1,110 | 603 |
Outage episodes by size in 2017: 56 reached 100+ customers, 10 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 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 |
| 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 ÷ 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, 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-louis-city