County annual report · FIPS 53067
2018 Thurston County, WA Power Outage Report
In 2018, customers in Thurston County, WA went without power for an average of 3.6 hours, a total of 512K customer-hours (Washington average 2.1 hours). That ranks 7th worst of 27 Washington counties and 1333rd of 2,798 nationally.
Compared with WA, the US and 2017
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Thurston 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 | December 12, 2018 18:45 | December 15, 2018 02:30 | 2d 7h | 17,852 | 22K |
| 2 | January 27, 2018 16:45 | January 30, 2018 03:30 | 2d 10h | 12,970 | 107K |
| 3 | March 31, 2018 00:00 | March 31, 2018 22:30 | 22h 30m | 10,039 | 24K |
| 4 | June 25, 2018 07:45 | June 25, 2018 22:45 | 15h | 9,590 | 5,572 |
| 5 | September 30, 2018 15:45 | October 1, 2018 10:45 | 19h | 8,664 | 22K |
| 6 | December 20, 2018 12:30 | December 20, 2018 19:15 | 6h 45m | 8,097 | 18K |
| 7 | December 15, 2018 12:30 | December 20, 2018 07:45 | 4d 19h | 6,548 | 51K |
| 8 | April 25, 2018 16:15 | April 25, 2018 21:30 | 5h 15m | 6,318 | 3,263 |
| 9 | June 28, 2018 08:30 | June 28, 2018 11:30 | 3h | 5,441 | 14K |
| 10 | July 11, 2018 16:45 | July 12, 2018 10:00 | 17h 15m | 5,255 | 5,089 |
Outage episodes by size in 2018: 98 reached 100+ customers, 26 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 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 |
|---|---|---|---|---|---|
| Puget Sound Energy Inc | 2018 | 7.2 hrs | 1.52 | 2.4 hrs | 0.99 |
| PUD No 1 of Lewis County | 2018 | 4.9 hrs | 1.68 | 3.4 hrs | 1.48 |
| PUD No 1 of Grays Harbor County | 2018 | 4.7 hrs | 1.29 | 2.3 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 71% of Washington's customers in 2018; 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, 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/washington/thurston-county