County annual report · FIPS 29221
2018 Washington County, MO Power Outage Report
In 2018, customers in Washington County, MO went without power for an average of 2.3 hours, a total of 23K customer-hours (Missouri average 1.7 hours). That ranks 35th worst of 96 Missouri counties and 1741st of 2,798 nationally.
Compared with MO, the US and 2017
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Washington County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 25, 2018 22:00 | November 26, 2018 11:45 | 13h 45m | 670 | 2,089 |
| 2 | April 14, 2018 02:30 | April 14, 2018 04:45 | 2h 15m | 654 | 1,360 |
| 3 | September 8, 2018 15:30 | September 8, 2018 16:15 | 45m | 651 | 354 |
| 4 | June 2, 2018 16:30 | June 4, 2018 13:15 | 1d 20h | 609 | 2,193 |
| 5 | May 30, 2018 04:45 | May 30, 2018 07:45 | 3h | 608 | 1,824 |
| 6 | August 22, 2018 22:30 | August 23, 2018 01:30 | 3h | 486 | 979 |
| 7 | March 3, 2018 17:45 | March 3, 2018 22:30 | 4h 45m | 393 | 1,864 |
| 8 | August 11, 2018 00:00 | August 11, 2018 16:30 | 16h 30m | 287 | 1,400 |
| 9 | March 6, 2018 17:30 | March 7, 2018 02:00 | 8h 30m | 249 | 675 |
| 10 | December 1, 2018 08:30 | December 1, 2018 13:00 | 4h 30m | 189 | 664 |
Outage episodes by size in 2018: 24 reached 100+ customers, 0 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 Washington County reported on EIA Form 861 for 2018, 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 |
| Crawford Electric Coop, Inc | 2018 | 5.0 hrs | 2.12 | 5.0 hrs | 2.12 |
| 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 80% of Missouri's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 10,163 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. Washington County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Washington County, MO annual power outage report, 2018, 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/2018/missouri/washington-county