County annual report · FIPS 19167
2020 Sioux County, IA Power Outage Report
In 2020, customers in Sioux County, IA went without power for an average of 0.9 hours, a total of 14K customer-hours (Iowa average 27.4 hours). That ranks 88th worst of 99 Iowa counties and 2718th 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 Sioux 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 | April 2, 2020 23:15 | April 3, 2020 06:00 | 6h 45m | 2,459 | 5,477 |
| 2 | June 21, 2020 21:00 | June 22, 2020 16:30 | 19h 30m | 1,331 | 2,529 |
| 3 | April 24, 2020 01:15 | April 24, 2020 03:15 | 2h | 768 | 875 |
| 4 | April 13, 2020 22:15 | April 13, 2020 23:45 | 1h 30m | 732 | 733 |
| 5 | October 6, 2020 14:00 | October 6, 2020 14:30 | 30m | 531 | 148 |
| 6 | May 30, 2020 15:00 | June 1, 2020 12:15 | 1d 21h | 209 | 186 |
| 7 | March 12, 2020 21:30 | March 13, 2020 00:30 | 3h | 174 | 233 |
| 8 | June 12, 2020 00:45 | June 12, 2020 12:45 | 12h | 174 | 336 |
| 9 | July 26, 2020 18:30 | July 26, 2020 20:45 | 2h 15m | 174 | 305 |
| 10 | September 1, 2020 01:45 | September 1, 2020 03:45 | 2h | 174 | 262 |
Outage episodes by size in 2020: 11 reached 100+ customers, 2 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 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 |
| 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 2020; 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, 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/sioux-county