County annual report · FIPS 16087
2015 Washington County, ID Power Outage Report
In 2015, customers in Washington County, ID went without power for an average of 0.7 hours, a total of 1,958 customer-hours (Idaho average 2.6 hours). That ranks 18th worst of 31 Idaho counties and 1973rd of 2,484 nationally.
Compared with ID, the US
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Washington County, 2015
The 3 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 8, 2015 05:30 | September 8, 2015 09:00 | 3h 30m | 481 | 1,684 |
| 2 | August 13, 2015 20:45 | August 13, 2015 22:15 | 1h 30m | 186 | 263 |
| 3 | August 12, 2015 03:30 | August 12, 2015 04:00 | 30m | 23 | 12 |
Outage episodes by size in 2015: 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 Washington 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 |
|---|---|---|---|---|---|
| Idaho Power Co | 2015 | 4.8 hrs | 1.76 | 4.4 hrs | 1.64 |
| City of Weiser - (ID) | - | - | - | - | - |
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 Idaho's customers in 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,900 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. Washington County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Washington County, ID 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/idaho/washington-county