County annual report · FIPS 19167
2017 Sioux County, IA Power Outage Report
In 2017, customers in Sioux County, IA went without power for an average of 0.5 hours, a total of 7,902 customer-hours (Iowa average 2.0 hours). That ranks 91st worst of 99 Iowa counties and 2312th of 2,786 nationally.
Compared with IA, the US and 2016
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Sioux County, 2017
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 17, 2017 03:00 | May 17, 2017 08:45 | 5h 45m | 305 | 616 |
| 2 | May 16, 2017 08:30 | May 16, 2017 18:30 | 10h | 217 | 877 |
| 3 | April 13, 2017 23:15 | April 14, 2017 03:15 | 4h | 102 | 148 |
| 4 | September 27, 2017 19:15 | September 27, 2017 20:00 | 45m | 101 | 76 |
| 5 | September 8, 2017 22:30 | September 9, 2017 00:15 | 1h 45m | 91 | 137 |
| 6 | April 22, 2017 18:00 | April 22, 2017 19:15 | 1h 15m | 90 | 112 |
| 7 | April 19, 2017 17:45 | April 20, 2017 04:30 | 10h 45m | 88 | 231 |
| 8 | October 31, 2017 21:15 | October 31, 2017 23:45 | 2h 30m | 87 | 131 |
| 9 | July 11, 2017 11:30 | July 11, 2017 15:45 | 4h 15m | 80 | 292 |
| 10 | September 14, 2017 00:45 | September 14, 2017 04:15 | 3h 30m | 78 | 273 |
Outage episodes by size in 2017: 4 reached 100+ customers, 0 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 2017, 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 | 2017 | 1.9 hrs | 1.00 | 1.6 hrs | 0.91 |
| Lyon Rural Electric Coop | 2017 | 58 min | 1.03 | 58 min | 1.03 |
| 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 n/a of Iowa's customers in 2017; 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, 2017, 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/2017/iowa/sioux-county