County annual report · FIPS 16015
2018 Boise County, ID Power Outage Report
In 2018, customers in Boise County, ID went without power for an average of 37.1 hours, a total of 129K customer-hours (Idaho average 2.0 hours). That ranks 1st worst of 44 Idaho counties and 158th 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 Boise 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 | November 21, 2018 20:15 | November 21, 2018 23:30 | 3h 15m | 2,960 | 6,479 |
| 2 | July 26, 2018 08:00 | July 27, 2018 07:30 | 23h 30m | 2,934 | 64K |
| 3 | May 9, 2018 21:45 | May 10, 2018 00:15 | 2h 30m | 2,902 | 7,012 |
| 4 | July 23, 2018 04:45 | July 23, 2018 05:30 | 45m | 2,689 | 2,017 |
| 5 | April 9, 2018 22:30 | April 10, 2018 02:00 | 3h 30m | 2,656 | 9,296 |
| 6 | December 2, 2018 10:00 | December 3, 2018 10:00 | 1d | 1,610 | 28K |
| 7 | May 26, 2018 01:45 | May 26, 2018 07:30 | 5h 45m | 652 | 1,170 |
| 8 | February 14, 2018 21:45 | February 14, 2018 23:30 | 1h 45m | 650 | 1,138 |
| 9 | March 5, 2018 00:30 | March 5, 2018 00:45 | 15m | 634 | 159 |
| 10 | July 14, 2018 18:15 | July 14, 2018 18:30 | 15m | 574 | 144 |
Outage episodes by size in 2018: 23 reached 100+ customers, 6 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 Boise 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 |
|---|---|---|---|---|---|
| Idaho Power Co | 2018 | 2.3 hrs | 1.01 | 2.3 hrs | 1.00 |
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 ÷ 3,491 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. Boise County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Boise 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/boise-county