County annual report · FIPS 53067
2021 Thurston County, WA Power Outage Report
In 2021, customers in Thurston County, WA went without power for an average of 10.7 hours, a total of 1.5M customer-hours (Washington average 8.7 hours). That ranks 9th worst of 33 Washington counties and 739th of 2,974 nationally.
Compared with WA, the US and 2020
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Thurston County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 12, 2021 10:00 | January 17, 2021 16:15 | 5d 6h | 39,455 | 682K |
| 2 | September 27, 2021 05:15 | September 29, 2021 04:45 | 1d 23h | 24,958 | 21K |
| 3 | November 15, 2021 14:45 | November 18, 2021 07:30 | 2d 16h | 23,248 | 234K |
| 4 | December 11, 2021 06:00 | December 14, 2021 07:45 | 3d 1h | 11,503 | 86K |
| 5 | October 6, 2021 17:00 | October 7, 2021 07:15 | 14h 15m | 7,681 | 37K |
| 6 | July 31, 2021 13:00 | August 1, 2021 04:00 | 15h | 6,521 | 15K |
| 7 | August 12, 2021 19:15 | August 12, 2021 20:45 | 1h 30m | 5,724 | 1,432 |
| 8 | April 13, 2021 00:45 | April 13, 2021 08:15 | 7h 30m | 5,515 | 5,604 |
| 9 | April 12, 2021 09:45 | April 12, 2021 14:30 | 4h 45m | 5,509 | 18K |
| 10 | July 31, 2021 01:00 | July 31, 2021 07:30 | 6h 30m | 5,370 | 13K |
Outage episodes by size in 2021: 125 reached 100+ customers, 43 reached 1,000+ customers, 4 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 2021, 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 | 2021 | 14.2 hrs | 2.27 | 3.5 hrs | 1.26 |
| PUD No 1 of Lewis County | 2021 | 14.9 hrs | 4.20 | 5.8 hrs | 2.37 |
| PUD No 1 of Grays Harbor County | 2021 | 8.4 hrs | 2.30 | 3.4 hrs | 1.30 |
| 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 87% of Washington's customers in 2021; 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, 2021, 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/2021/washington/thurston-county