County annual report · FIPS 19123
2016 Mahaska County, IA Power Outage Report
In 2016, customers in Mahaska County, IA went without power for an average of 2.7 hours, a total of 22K customer-hours (Iowa average 1.8 hours). That ranks 30th worst of 99 Iowa counties and 1091st of 2,391 nationally.
Compared with IA, the US and 2015
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Mahaska County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 13, 2016 18:30 | July 14, 2016 10:45 | 16h 15m | 2,706 | 6,801 |
| 2 | June 19, 2016 01:00 | June 19, 2016 04:15 | 3h 15m | 1,449 | 2,190 |
| 3 | April 2, 2016 14:00 | April 2, 2016 21:15 | 7h 15m | 1,268 | 2,483 |
| 4 | July 19, 2016 19:00 | July 20, 2016 00:00 | 5h | 924 | 1,422 |
| 5 | July 29, 2016 12:00 | July 29, 2016 15:30 | 3h 30m | 682 | 687 |
| 6 | August 7, 2016 16:15 | August 7, 2016 17:30 | 1h 15m | 405 | 466 |
| 7 | September 26, 2016 19:15 | September 27, 2016 04:00 | 8h 45m | 375 | 1,192 |
| 8 | February 21, 2016 12:00 | February 21, 2016 18:45 | 6h 45m | 318 | 298 |
| 9 | June 30, 2016 12:00 | June 30, 2016 13:00 | 1h | 317 | 250 |
| 10 | August 20, 2016 03:15 | August 20, 2016 03:30 | 15m | 259 | 65 |
Outage episodes by size in 2016: 18 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 Mahaska County reported on EIA Form 861 for 2016, 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 | 2016 | 3.6 hrs | 1.64 | 83 min | 0.90 |
| T I P Rural Electric Coop | 2016 | 1.6 hrs | 1.20 | 1.6 hrs | 1.20 |
| 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 n/a of Iowa's customers in 2016; 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, 2016, 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/2016/iowa/mahaska-county