County annual report · FIPS 31165
2021 Sioux County, NE Power Outage Report
In 2021, customers in Sioux County, NE went without power for an average of 15.6 hours, a total of 2,236 customer-hours (Nebraska average 8.3 hours). That ranks 6th worst of 54 Nebraska counties and 547th of 2,974 nationally.
Compared with NE, the US and 2020
Coverage line is EAGLE-I's share of Nebraska customers tracked each year.
Biggest outages in Sioux County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 14, 2021 03:15 | January 14, 2021 08:30 | 5h 15m | 570 | 354 |
| 2 | February 16, 2021 14:15 | February 16, 2021 16:00 | 1h 45m | 187 | 227 |
| 3 | March 14, 2021 15:45 | March 14, 2021 23:00 | 7h 15m | 125 | 269 |
| 4 | October 13, 2021 06:30 | October 13, 2021 18:45 | 12h 15m | 118 | 598 |
| 5 | April 8, 2021 15:15 | April 8, 2021 16:15 | 1h | 108 | 108 |
| 6 | November 1, 2021 11:15 | November 1, 2021 13:00 | 1h 45m | 80 | 41 |
| 7 | December 15, 2021 21:00 | December 16, 2021 04:45 | 7h 45m | 53 | 388 |
| 8 | July 1, 2021 12:00 | July 1, 2021 12:15 | 15m | 48 | 12 |
| 9 | July 28, 2021 14:00 | July 28, 2021 14:15 | 15m | 48 | 12 |
| 10 | July 24, 2021 18:15 | July 24, 2021 20:30 | 2h 15m | 17 | 35 |
Outage episodes by size in 2021: 5 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 2021, 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 |
|---|---|---|---|---|---|
| Nebraska Public Power District | 2021 | 4.0 hrs | 1.14 | 71 min | 0.66 |
| Wyrulec Company | 2018 | 3.0 hrs | 1.03 | 71 min | 0.72 |
| Northwest Rural Pub Pwr Dist | 2018 | 7.5 hrs | 2.75 | 7.1 hrs | 2.66 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Panhandle Rural El Member Assn | - | - | - | - | - |
| Niobrara Electric Assn, Inc | - | - | - | - | - |
| Chimney Rock Public Power Dist | - | - | - | - | - |
| Roosevelt Public Power Dist | - | - | - | - | - |
| Village of Morrill - (NE) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 48% of Nebraska's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 143 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 2019–2025.
Cite this report
MassOutage (massoutage.com), Sioux County, NE annual power outage report, 2021, 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/2021/nebraska/sioux-county