County annual report · FIPS 19157
2020 Poweshiek County, IA Power Outage Report
In 2020, customers in Poweshiek County, IA went without power for an average of 145.6 hours, a total of 977K customer-hours (Iowa average 27.4 hours). That ranks 1st worst of 99 Iowa counties and 31st 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 Poweshiek 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 14:15 | August 22, 2020 00:15 | 11d 10h | 8,164 | 968K |
| 2 | August 29, 2020 22:15 | August 29, 2020 23:30 | 1h 15m | 1,195 | 300 |
| 3 | May 25, 2020 22:45 | May 26, 2020 06:45 | 8h | 1,002 | 1,009 |
| 4 | June 5, 2020 11:15 | June 5, 2020 16:00 | 4h 45m | 412 | 510 |
| 5 | September 6, 2020 12:30 | September 6, 2020 21:15 | 8h 45m | 411 | 321 |
| 6 | May 27, 2020 19:15 | May 27, 2020 22:45 | 3h 30m | 387 | 1,173 |
| 7 | September 7, 2020 20:45 | September 7, 2020 22:00 | 1h 15m | 284 | 212 |
| 8 | June 10, 2020 19:00 | June 10, 2020 19:15 | 15m | 240 | 60 |
| 9 | May 14, 2020 08:45 | May 14, 2020 09:00 | 15m | 221 | 55 |
| 10 | March 3, 2020 04:45 | March 3, 2020 08:30 | 3h 45m | 188 | 474 |
Outage episodes by size in 2020: 17 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 Poweshiek 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 |
| 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 91% of Iowa's customers in 2020; 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, 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/poweshiek-county