County annual report · FIPS 19167
2022 Sioux County, IA Power Outage Report
In 2022, customers in Sioux County, IA went without power for an average of 2.1 hours, a total of 35K customer-hours (Iowa average 1.6 hours). That ranks 44th worst of 99 Iowa counties and 2271st 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 Sioux 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 | May 11, 2022 21:45 | May 13, 2022 07:30 | 1d 9h | 3,204 | 11K |
| 2 | November 9, 2022 16:45 | November 9, 2022 17:00 | 15m | 1,862 | 466 |
| 3 | September 28, 2022 18:00 | September 28, 2022 20:45 | 2h 45m | 1,830 | 4,746 |
| 4 | May 30, 2022 23:45 | May 31, 2022 20:00 | 20h 15m | 891 | 1,117 |
| 5 | July 14, 2022 18:45 | July 14, 2022 19:45 | 1h | 846 | 218 |
| 6 | December 8, 2022 16:45 | December 8, 2022 18:00 | 1h 15m | 760 | 396 |
| 7 | December 13, 2022 08:15 | December 14, 2022 00:30 | 16h 15m | 616 | 2,032 |
| 8 | April 22, 2022 10:00 | April 22, 2022 12:30 | 2h 30m | 558 | 1,369 |
| 9 | July 5, 2022 21:45 | July 6, 2022 03:00 | 5h 15m | 473 | 457 |
| 10 | January 6, 2022 02:45 | January 6, 2022 05:45 | 3h | 363 | 998 |
Outage episodes by size in 2022: 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 Sioux 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 |
| Lyon Rural Electric Coop | 2018 | 34 min | 0.38 | 34 min | 0.38 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Interstate Power and Light Co | - | - | - | - | - |
| North West Rural Electric Coop | - | - | - | - | - |
| City of Alton | - | - | - | - | - |
| City of Hawarden - (IA) | - | - | - | - | - |
| City of Orange City - (IA) | - | - | - | - | - |
| City of Sioux Center | - | - | - | - | - |
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 ÷ 16,993 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. Sioux County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sioux 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/sioux-county