County annual report · FIPS 31149
2018 Rock County, NE Power Outage Report
In 2018, customers in Rock County, NE went without power for an average of 1.4 hours, a total of 1,866 customer-hours (Nebraska average 2.5 hours). That ranks 15th worst of 44 Nebraska counties and 2155th of 2,798 nationally.
Compared with NE, the US and 2017
Coverage line is EAGLE-I's share of Nebraska customers tracked each year.
Biggest outages in Rock County, 2018
The 5 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 13, 2018 22:45 | April 14, 2018 02:45 | 4h | 566 | 1,558 |
| 2 | May 23, 2018 15:30 | May 23, 2018 16:00 | 30m | 566 | 283 |
| 3 | June 28, 2018 12:30 | June 28, 2018 13:00 | 30m | 42 | 21 |
| 4 | April 10, 2018 16:00 | April 10, 2018 17:15 | 1h 15m | 1 | 1 |
| 5 | August 1, 2018 13:45 | August 1, 2018 16:15 | 2h 30m | 1 | 3 |
Outage episodes by size in 2018: 2 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 2018, 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 | 2018 | 2.6 hrs | 0.74 | 49 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 45% of Nebraska's customers in 2018; 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, 2018, 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/2018/nebraska/rock-county