County annual report · FIPS 53025
2025 Grant County, WA Power Outage Report
In 2025, customers in Grant County, WA went without power for an average of 0.0 hours, a total of 169 customer-hours (Washington average 7.0 hours). That ranks 33rd worst of 33 Washington counties and 2988th of 3,000 nationally.
Compared with WA, the US and 2024
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Grant 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 | December 6, 2025 05:45 | December 6, 2025 10:00 | 4h 15m | 10 | 43 |
| 2 | February 23, 2025 16:00 | February 23, 2025 16:30 | 30m | 4 | 2 |
| 3 | June 11, 2025 04:15 | June 11, 2025 12:00 | 7h 45m | 4 | 31 |
| 4 | June 11, 2025 21:30 | June 12, 2025 04:15 | 6h 45m | 4 | 27 |
| 5 | June 17, 2025 02:15 | June 17, 2025 04:00 | 1h 45m | 4 | 7 |
| 6 | June 20, 2025 01:30 | June 20, 2025 02:45 | 1h 15m | 4 | 5 |
| 7 | July 11, 2025 21:30 | July 12, 2025 02:45 | 5h 15m | 4 | 21 |
| 8 | December 24, 2025 18:45 | December 24, 2025 19:45 | 1h | 4 | 4 |
| 9 | December 29, 2025 17:30 | December 29, 2025 22:15 | 4h 45m | 4 | 19 |
| 10 | December 17, 2025 13:45 | December 18, 2025 00:15 | 10h 30m | 1 | 11 |
Outage episodes by size in 2025: 0 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 Grant 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 |
|---|---|---|---|---|---|
| Avista Corp | 2024 | 3.1 hrs | 1.11 | 2.3 hrs | 0.94 |
| Big Bend Electric Coop, Inc | 2024 | 4.1 hrs | 0.93 | 3.2 hrs | 0.79 |
| Bonneville Power Administration | - | - | - | - | - |
| PUD No 2 of Grant County | - | - | - | - | - |
| City of Coulee Dam - (WA) | - | - | - | - | - |
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 Washington's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 50,667 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. Grant County has data for 2016–2025.
Cite this report
MassOutage (massoutage.com), Grant County, WA 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/washington/grant-county