County annual report · FIPS 31149
2015 Rock County, NE Power Outage Report
In 2015, customers in Rock County, NE went without power for an average of 0.0 hours, a total of 9 customer-hours (Nebraska average 0.8 hours). That ranks 38th worst of 42 Nebraska counties and 2428th of 2,484 nationally.
Compared with NE, the US
Coverage line is EAGLE-I's share of Nebraska customers tracked each year.
Biggest outages in Rock County, 2015
The 4 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 1, 2015 14:15 | November 1, 2015 14:45 | 30m | 10 | 5 |
| 2 | December 19, 2015 22:45 | December 20, 2015 00:15 | 1h 30m | 3 | 3 |
| 3 | August 20, 2015 22:30 | August 20, 2015 23:15 | 45m | 1 | 1 |
| 4 | September 25, 2015 14:15 | September 25, 2015 14:30 | 15m | 1 | 0 |
Outage episodes by size in 2015: 0 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 Rock County reported on EIA Form 861 for 2015, 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 | 2015 | 44 min | 0.60 | 44 min | 0.60 |
| KBR Rural Public Power District | - | - | - | - | - |
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 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,374 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. Rock County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Rock County, NE annual power outage report, 2015, 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/2015/nebraska/rock-county