County annual report · FIPS 19183
2023 Washington County, IA Power Outage Report
In 2023, customers in Washington County, IA went without power for an average of 3.2 hours, a total of 31K customer-hours (Iowa average 2.0 hours). That ranks 21st worst of 99 Iowa counties and 1902nd of 2,977 nationally.
Compared with IA, the US and 2022
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Washington County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 31, 2023 21:45 | April 3, 2023 02:15 | 2d 4h | 2,001 | 13K |
| 2 | October 27, 2023 14:45 | October 27, 2023 20:30 | 5h 45m | 1,991 | 667 |
| 3 | May 5, 2023 13:45 | May 5, 2023 17:45 | 4h | 1,452 | 1,146 |
| 4 | May 9, 2023 17:15 | May 10, 2023 01:15 | 8h | 725 | 190 |
| 5 | May 7, 2023 20:30 | May 8, 2023 21:15 | 1d | 615 | 4,409 |
| 6 | September 22, 2023 03:30 | September 22, 2023 07:45 | 4h 15m | 607 | 2,579 |
| 7 | July 21, 2023 19:00 | July 21, 2023 19:45 | 45m | 350 | 259 |
| 8 | February 9, 2023 18:45 | February 9, 2023 19:45 | 1h | 228 | 182 |
| 9 | July 3, 2023 11:15 | July 3, 2023 15:00 | 3h 45m | 194 | 332 |
| 10 | June 29, 2023 15:15 | June 29, 2023 21:00 | 5h 45m | 168 | 496 |
Outage episodes by size in 2023: 20 reached 100+ customers, 3 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 2023, 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 | 2023 | 2.8 hrs | 1.13 | 78 min | 0.83 |
| Eastern Iowa Light & Power Coop | 2023 | 3.1 hrs | 1.23 | 1.7 hrs | 0.98 |
| 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 n/a of Iowa's customers in 2023; 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, 2023, 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/2023/iowa/washington-county