County annual report · FIPS 53067
2025 Thurston County, WA Power Outage Report
In 2025, customers in Thurston County, WA went without power for an average of 14.9 hours, a total of 2.1M customer-hours (Washington average 7.0 hours). That ranks 7th worst of 33 Washington counties and 508th 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 Thurston 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 | October 24, 2025 14:00 | October 30, 2025 05:45 | 5d 15h | 50,307 | 880K |
| 2 | December 17, 2025 02:00 | December 21, 2025 23:00 | 4d 21h | 31,765 | 583K |
| 3 | February 24, 2025 21:30 | March 2, 2025 21:30 | 6d | 21,133 | 168K |
| 4 | November 27, 2025 21:15 | November 29, 2025 01:30 | 1d 4h | 7,109 | 9,585 |
| 5 | December 22, 2025 04:30 | December 23, 2025 15:30 | 1d 11h | 6,837 | 25K |
| 6 | November 25, 2025 15:30 | November 27, 2025 20:30 | 2d 5h | 6,298 | 58K |
| 7 | March 9, 2025 14:45 | March 11, 2025 01:15 | 1d 10h | 5,031 | 20K |
| 8 | April 17, 2025 14:00 | April 18, 2025 05:15 | 15h 15m | 4,697 | 8,346 |
| 9 | March 18, 2025 16:15 | March 18, 2025 21:15 | 5h | 4,455 | 6,796 |
| 10 | September 30, 2025 19:00 | October 2, 2025 03:30 | 1d 8h | 3,926 | 4,976 |
Outage episodes by size in 2025: 130 reached 100+ customers, 36 reached 1,000+ customers, 3 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 Thurston 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 |
|---|---|---|---|---|---|
| Puget Sound Energy Inc | 2024 | 19.9 hrs | 2.20 | 3.4 hrs | 1.20 |
| PUD No 1 of Lewis County | 2024 | 12.0 hrs | 3.71 | 10.1 hrs | 3.30 |
| PUD No 1 of Grays Harbor County | 2024 | 7.8 hrs | 1.40 | 3.4 hrs | 1.00 |
| Bonneville Power Administration | - | - | - | - | - |
| Puget Sound Energy Inc,pugetsoundenergy | - | - | - | - | - |
| Tanner Electric Coop | - | - | - | - | - |
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 ÷ 141,017 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. Thurston County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Thurston 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/thurston-county