County annual report · FIPS 16023
2018 Butte County, ID Power Outage Report
In 2018, customers in Butte County, ID went without power for an average of 16.3 hours, a total of 1,318 customer-hours (Idaho average 2.0 hours). That ranks 5th worst of 44 Idaho counties and 346th of 2,798 nationally.
Compared with ID, the US and 2017
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Butte County, 2018
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 10, 2018 03:30 | May 10, 2018 06:30 | 3h | 175 | 324 |
| 2 | October 5, 2018 09:30 | October 5, 2018 11:15 | 1h 45m | 79 | 61 |
| 3 | February 5, 2018 04:45 | February 5, 2018 07:15 | 2h 30m | 77 | 62 |
| 4 | April 2, 2018 20:45 | April 2, 2018 22:45 | 2h | 63 | 36 |
| 5 | August 28, 2018 01:00 | August 28, 2018 03:00 | 2h | 42 | 64 |
| 6 | July 16, 2018 21:15 | July 17, 2018 05:30 | 8h 15m | 38 | 242 |
| 7 | July 12, 2018 16:00 | July 12, 2018 18:00 | 2h | 28 | 49 |
| 8 | September 15, 2018 20:30 | September 15, 2018 22:30 | 2h | 25 | 50 |
| 9 | October 3, 2018 15:00 | October 3, 2018 20:00 | 5h | 20 | 96 |
| 10 | May 12, 2018 02:15 | May 12, 2018 03:15 | 1h | 13 | 7 |
Outage episodes by size in 2018: 1 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 Butte 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 |
|---|---|---|---|---|---|
| PacifiCorp | 2018 | 3.2 hrs | 1.62 | 2.0 hrs | 1.25 |
| Bonneville Power Administration | - | - | - | - | - |
| Lost River Electric Coop Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of Idaho's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 81 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. Butte County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Butte County, ID 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/idaho/butte-county