County annual report · FIPS 16033
2025 Clark County, ID Power Outage Report
In 2025, customers in Clark County, ID went without power for an average of 6.5 hours, a total of 4,430 customer-hours (Idaho average 5.6 hours). That ranks 24th worst of 43 Idaho counties and 1226th of 3,000 nationally.
Compared with ID, the US and 2024
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Clark County, 2025
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 4, 2025 05:30 | July 4, 2025 08:30 | 3h | 495 | 421 |
| 2 | July 18, 2025 21:30 | July 19, 2025 03:00 | 5h 30m | 219 | 560 |
| 3 | July 19, 2025 14:15 | July 19, 2025 15:30 | 1h 15m | 219 | 274 |
| 4 | August 8, 2025 16:00 | August 8, 2025 17:30 | 1h 30m | 109 | 164 |
| 5 | September 4, 2025 02:45 | September 4, 2025 05:45 | 3h | 109 | 311 |
| 6 | July 15, 2025 15:30 | July 15, 2025 22:00 | 6h 30m | 108 | 675 |
| 7 | August 30, 2025 17:30 | August 30, 2025 20:15 | 2h 45m | 94 | 103 |
| 8 | May 20, 2025 03:45 | May 21, 2025 02:00 | 22h 15m | 73 | 163 |
| 9 | February 3, 2025 19:00 | February 3, 2025 21:00 | 2h | 62 | 124 |
| 10 | August 25, 2025 16:45 | August 25, 2025 19:45 | 3h | 48 | 84 |
Outage episodes by size in 2025: 6 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 Clark County reported on EIA Form 861 for 2025, 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 | 2024 | 4.6 hrs | 1.67 | 2.0 hrs | 1.11 |
| Fall River Rural Elec Coop Inc | 2024 | 14 min | 0.11 | 10 min | 0.08 |
| Vigilante 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 n/a of Idaho's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 685 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. Clark County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Clark County, ID annual power outage report, 2025, 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/2025/idaho/clark-county