County annual report · FIPS 19161
2022 Sac County, IA Power Outage Report
In 2022, customers in Sac County, IA went without power for an average of 2.3 hours, a total of 8,902 customer-hours (Iowa average 1.6 hours). That ranks 38th worst of 99 Iowa counties and 2183rd of 2,976 nationally.
Compared with IA, the US and 2021
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Sac County, 2022
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 24, 2022 02:30 | July 24, 2022 06:00 | 3h 30m | 1,217 | 2,533 |
| 2 | May 30, 2022 20:45 | May 31, 2022 02:30 | 5h 45m | 960 | 1,278 |
| 3 | November 4, 2022 08:00 | November 4, 2022 09:45 | 1h 45m | 522 | 794 |
| 4 | May 30, 2022 11:30 | May 30, 2022 19:45 | 8h 15m | 516 | 1,643 |
| 5 | March 13, 2022 23:30 | March 13, 2022 23:45 | 15m | 468 | 117 |
| 6 | March 22, 2022 11:00 | March 22, 2022 13:00 | 2h | 394 | 199 |
| 7 | July 5, 2022 22:45 | July 6, 2022 02:30 | 3h 45m | 230 | 413 |
| 8 | August 12, 2022 03:45 | August 12, 2022 06:00 | 2h 15m | 171 | 125 |
| 9 | July 11, 2022 08:45 | July 11, 2022 15:45 | 7h | 156 | 193 |
| 10 | March 18, 2022 22:15 | March 19, 2022 00:30 | 2h 15m | 155 | 296 |
Outage episodes by size in 2022: 12 reached 100+ customers, 1 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 Sac County reported on EIA Form 861 for 2022, 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 | 2022 | 1.8 hrs | 1.03 | 87 min | 0.88 |
| Iowa Lakes Electric Coop | 2022 | 71 min | 0.69 | 68 min | 0.67 |
| Western Iowa Power Coop | 2018 | 47 min | 0.76 | 47 min | 0.76 |
| North West Rural Electric Coop | - | - | - | - | - |
| Raccoon Valley Electric Cooperative | - | - | - | - | - |
| Calhoun County Elec Coop Assn | - | - | - | - | - |
| City of Auburn - (IA) | - | - | - | - | - |
| City of Lake View - (IA) | - | - | - | - | - |
| City of Wall Lake - (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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,895 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. Sac County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sac County, IA annual power outage report, 2022, 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/2022/iowa/sac-county