County annual report · FIPS 31165
2025 Sioux County, NE Power Outage Report
In 2025, customers in Sioux County, NE went without power for an average of 65.0 hours, a total of 9,292 customer-hours (Nebraska average 6.1 hours). That ranks 2nd worst of 55 Nebraska counties and 52nd of 3,000 nationally.
Compared with NE, the US and 2024
Coverage line is EAGLE-I's share of Nebraska customers tracked each year.
Biggest outages in Sioux County, 2025
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 18, 2025 23:15 | May 20, 2025 19:15 | 1d 20h | 1,274 | 3,357 |
| 2 | June 17, 2025 07:00 | June 17, 2025 11:00 | 4h | 560 | 1,468 |
| 3 | April 29, 2025 02:30 | April 29, 2025 04:00 | 1h 30m | 546 | 414 |
| 4 | April 9, 2025 19:00 | April 9, 2025 22:30 | 3h 30m | 274 | 367 |
| 5 | February 27, 2025 21:15 | February 27, 2025 22:30 | 1h 15m | 271 | 339 |
| 6 | June 12, 2025 20:00 | June 12, 2025 21:45 | 1h 45m | 271 | 383 |
| 7 | September 19, 2025 01:00 | September 19, 2025 01:15 | 15m | 240 | 60 |
| 8 | October 7, 2025 12:15 | October 7, 2025 12:30 | 15m | 240 | 60 |
| 9 | June 9, 2025 15:15 | June 9, 2025 17:15 | 2h | 224 | 448 |
| 10 | July 15, 2025 05:45 | July 15, 2025 08:15 | 2h 30m | 223 | 467 |
Outage episodes by size in 2025: 11 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 Sioux County reported on EIA Form 861 for 2025, 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 | 2024 | 74 min | 0.74 | 74 min | 0.74 |
| 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 n/a of Nebraska's customers in 2025; 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, 2025, 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/2025/nebraska/sioux-county