County annual report · FIPS 29221
2020 Washington County, MO Power Outage Report
In 2020, customers in Washington County, MO went without power for an average of 8.9 hours, a total of 90K customer-hours (Missouri average 2.8 hours). That ranks 13th worst of 115 Missouri counties and 872nd of 3,019 nationally.
Compared with MO, the US and 2019
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Washington County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 27, 2020 14:30 | December 27, 2020 18:45 | 4h 15m | 2,658 | 3,017 |
| 2 | July 15, 2020 18:45 | July 15, 2020 23:45 | 5h | 1,562 | 1,575 |
| 3 | November 15, 2020 15:30 | November 15, 2020 21:15 | 5h 45m | 1,468 | 1,236 |
| 4 | February 20, 2020 02:00 | February 20, 2020 02:15 | 15m | 1,390 | 348 |
| 5 | June 8, 2020 20:15 | June 9, 2020 13:15 | 17h | 1,111 | 2,794 |
| 6 | May 24, 2020 21:30 | May 25, 2020 09:15 | 11h 45m | 1,028 | 917 |
| 7 | May 28, 2020 14:30 | May 28, 2020 16:45 | 2h 15m | 691 | 1,049 |
| 8 | June 5, 2020 17:00 | June 5, 2020 20:30 | 3h 30m | 621 | 781 |
| 9 | August 30, 2020 14:00 | August 31, 2020 00:15 | 10h 15m | 594 | 3,797 |
| 10 | March 26, 2020 14:30 | March 27, 2020 00:15 | 9h 45m | 584 | 212 |
Outage episodes by size in 2020: 60 reached 100+ customers, 6 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 2020, 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) | 2020 | 2.6 hrs | 0.86 | 86 min | 0.71 |
| Crawford Electric Coop, Inc | 2020 | 6.0 hrs | 2.10 | 6.0 hrs | 2.10 |
| 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 2020; 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, 2020, 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/2020/missouri/washington-county