County annual report · FIPS 16087
2018 Washington County, ID Power Outage Report
In 2018, customers in Washington County, ID went without power for an average of 2.6 hours, a total of 7,567 customer-hours (Idaho average 2.0 hours). That ranks 23rd worst of 44 Idaho counties and 1632nd 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 Washington 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 | July 17, 2018 05:15 | July 17, 2018 06:45 | 1h 30m | 910 | 1,365 |
| 2 | November 23, 2018 04:30 | November 23, 2018 07:45 | 3h 15m | 687 | 1,397 |
| 3 | September 18, 2018 17:00 | September 18, 2018 17:30 | 30m | 605 | 303 |
| 4 | November 23, 2018 22:15 | November 24, 2018 00:15 | 2h | 595 | 1,190 |
| 5 | April 12, 2018 23:15 | April 13, 2018 00:30 | 1h 15m | 526 | 550 |
| 6 | December 17, 2018 10:00 | December 17, 2018 13:00 | 3h | 423 | 671 |
| 7 | June 13, 2018 17:00 | June 13, 2018 17:30 | 30m | 418 | 209 |
| 8 | June 18, 2018 22:15 | June 18, 2018 22:30 | 15m | 417 | 104 |
| 9 | December 18, 2018 12:00 | December 18, 2018 16:15 | 4h 15m | 252 | 687 |
| 10 | May 26, 2018 02:00 | May 26, 2018 03:45 | 1h 45m | 198 | 347 |
Outage episodes by size in 2018: 12 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 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 |
| 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 91% of Idaho's customers in 2018; 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, 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/washington-county