County annual report · FIPS 19123
2019 Mahaska County, IA Power Outage Report
In 2019, customers in Mahaska County, IA went without power for an average of 2.3 hours, a total of 19K customer-hours (Iowa average 2.2 hours). That ranks 53rd worst of 99 Iowa counties and 1930th of 2,945 nationally.
Compared with IA, the US and 2018
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Mahaska County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 27, 2019 11:00 | September 27, 2019 12:45 | 1h 45m | 1,603 | 1,038 |
| 2 | May 22, 2019 00:45 | May 22, 2019 02:45 | 2h | 1,272 | 2,540 |
| 3 | July 13, 2019 12:30 | July 13, 2019 15:30 | 3h | 1,219 | 663 |
| 4 | May 26, 2019 16:00 | May 26, 2019 19:00 | 3h | 1,057 | 534 |
| 5 | December 13, 2019 20:30 | December 13, 2019 22:45 | 2h 15m | 395 | 709 |
| 6 | May 5, 2019 03:45 | May 5, 2019 05:15 | 1h 30m | 389 | 584 |
| 7 | July 21, 2019 00:30 | July 21, 2019 17:00 | 16h 30m | 376 | 3,108 |
| 8 | February 24, 2019 15:30 | February 24, 2019 17:45 | 2h 15m | 374 | 601 |
| 9 | May 17, 2019 02:15 | May 18, 2019 04:45 | 1d 2h | 354 | 1,585 |
| 10 | January 30, 2019 01:30 | January 30, 2019 05:15 | 3h 45m | 337 | 775 |
Outage episodes by size in 2019: 20 reached 100+ customers, 4 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 Mahaska County reported on EIA Form 861 for 2019, 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 | 2018 | 1.9 hrs | 1.18 | 75 min | 0.96 |
| T I P Rural Electric Coop | 2018 | 2.5 hrs | 1.33 | 2.5 hrs | 1.33 |
| Interstate Power and Light Co | - | - | - | - | - |
| Pella Cooperative Elec Assn | - | - | - | - | - |
| City of Pella - (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 89% of Iowa's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,162 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. Mahaska County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mahaska County, IA annual power outage report, 2019, 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/2019/iowa/mahaska-county