County annual report · FIPS 19183
2020 Washington County, IA Power Outage Report
In 2020, customers in Washington County, IA went without power for an average of 13.5 hours, a total of 131K customer-hours (Iowa average 27.4 hours). That ranks 22nd worst of 99 Iowa counties and 613th of 3,019 nationally.
Compared with IA, the US and 2019
Coverage line is EAGLE-I's share of Iowa 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 | August 10, 2020 17:30 | August 13, 2020 16:45 | 2d 23h | 6,817 | 85K |
| 2 | March 29, 2020 00:30 | March 29, 2020 03:30 | 3h | 2,302 | 4,244 |
| 3 | September 13, 2020 09:30 | September 13, 2020 14:15 | 4h 45m | 1,796 | 7,631 |
| 4 | September 28, 2020 18:15 | September 28, 2020 23:00 | 4h 45m | 1,512 | 759 |
| 5 | July 15, 2020 14:45 | July 15, 2020 15:45 | 1h | 1,144 | 1,138 |
| 6 | June 18, 2020 03:45 | June 18, 2020 07:00 | 3h 15m | 1,068 | 3,471 |
| 7 | September 8, 2020 03:15 | September 8, 2020 11:00 | 7h 45m | 936 | 2,886 |
| 8 | July 14, 2020 13:30 | July 14, 2020 14:30 | 1h | 897 | 228 |
| 9 | July 11, 2020 20:00 | July 13, 2020 12:30 | 1d 16h | 791 | 1,133 |
| 10 | June 25, 2020 03:15 | June 25, 2020 06:45 | 3h 30m | 781 | 2,731 |
Outage episodes by size in 2020: 41 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 |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2020 | 18.3 hrs | 1.43 | 82 min | 0.79 |
| Eastern Iowa Light & Power Coop | 2020 | 10.6 hrs | 2.12 | 1.9 hrs | 1.18 |
| T I P Rural Electric Coop | 2018 | 2.5 hrs | 1.33 | 2.5 hrs | 1.33 |
| Farmers Electric Coop - (IA) | 2018 | 77 min | 2.30 | 77 min | 2.30 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Access Energy Coop | - | - | - | - | - |
| Waverly Municipal Elec Utility | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of Iowa's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 9,700 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, IA 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/iowa/washington-county