County annual report · FIPS 29099
2015 Jefferson County, MO Power Outage Report
In 2015, customers in Jefferson County, MO went without power for an average of 1.7 hours, a total of 184K customer-hours (Missouri average 2.2 hours). That ranks 38th worst of 93 Missouri counties and 1371st of 2,484 nationally.
Compared with MO, the US
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Jefferson County, 2015
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 14, 2015 03:15 | May 14, 2015 07:15 | 4h | 5,429 | 13K |
| 2 | November 20, 2015 13:30 | November 22, 2015 06:45 | 1d 17h | 4,425 | 13K |
| 3 | September 10, 2015 12:30 | September 11, 2015 19:30 | 1d 7h | 2,880 | 9,702 |
| 4 | April 15, 2015 23:30 | April 16, 2015 02:00 | 2h 30m | 2,456 | 2,568 |
| 5 | October 7, 2015 20:30 | October 8, 2015 06:00 | 9h 30m | 2,314 | 4,741 |
| 6 | June 30, 2015 00:30 | June 30, 2015 20:45 | 20h 15m | 2,294 | 3,956 |
| 7 | August 9, 2015 05:15 | August 11, 2015 16:15 | 2d 11h | 2,271 | 14K |
| 8 | July 6, 2015 12:45 | July 7, 2015 01:30 | 12h 45m | 2,097 | 2,219 |
| 9 | June 25, 2015 13:30 | June 26, 2015 22:30 | 1d 9h | 1,991 | 4,763 |
| 10 | May 24, 2015 19:30 | May 25, 2015 07:15 | 11h 45m | 1,970 | 1,230 |
Outage episodes by size in 2015: 86 reached 100+ customers, 25 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 Jefferson County reported on EIA Form 861 for 2015, 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) | 2015 | 1.9 hrs | 0.82 | 1.6 hrs | 0.77 |
| Crawford Electric Coop, Inc | 2015 | 6.4 hrs | 2.08 | 5.3 hrs | 1.91 |
| Citizens Electric Corporation - (MO) | 2015 | 1.8 hrs | - | 0 min | - |
| 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 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 108,266 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. Jefferson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson County, MO annual power outage report, 2015, 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/2015/missouri/jefferson-county