County annual report · FIPS 19157
2023 Poweshiek County, IA Power Outage Report
In 2023, customers in Poweshiek County, IA went without power for an average of 2.1 hours, a total of 14K customer-hours (Iowa average 2.0 hours). That ranks 42nd worst of 99 Iowa counties and 2265th 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 Poweshiek 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 | August 7, 2023 11:15 | August 11, 2023 16:15 | 4d 5h | 1,227 | 1,955 |
| 2 | June 20, 2023 22:30 | June 21, 2023 00:15 | 1h 45m | 1,177 | 2,060 |
| 3 | March 12, 2023 01:15 | March 12, 2023 02:45 | 1h 30m | 569 | 844 |
| 4 | March 31, 2023 22:00 | April 1, 2023 14:15 | 16h 15m | 552 | 1,175 |
| 5 | April 15, 2023 05:15 | April 15, 2023 07:45 | 2h 30m | 395 | 256 |
| 6 | May 7, 2023 22:00 | May 8, 2023 16:45 | 18h 45m | 370 | 1,248 |
| 7 | June 16, 2023 16:30 | June 17, 2023 00:00 | 7h 30m | 369 | 1,262 |
| 8 | July 12, 2023 12:45 | July 12, 2023 14:45 | 2h | 253 | 132 |
| 9 | September 4, 2023 17:15 | September 4, 2023 19:15 | 2h | 248 | 311 |
| 10 | March 23, 2023 00:15 | March 23, 2023 00:30 | 15m | 246 | 62 |
Outage episodes by size in 2023: 20 reached 100+ customers, 2 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 Poweshiek 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 |
| T I P Rural Electric Coop | 2018 | 2.5 hrs | 1.33 | 2.5 hrs | 1.33 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Pella Cooperative Elec Assn | - | - | - | - | - |
| City of Brooklyn - (IA) | - | - | - | - | - |
| City of Montezuma - (IA) | - | - | - | - | - |
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 ÷ 6,708 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. Poweshiek County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Poweshiek 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/poweshiek-county