County annual report · FIPS 53053
2017 Pierce County, WA Power Outage Report
In 2017, customers in Pierce County, WA went without power for an average of 4.0 hours, a total of 753K customer-hours (Washington average 3.3 hours). That ranks 9th worst of 31 Washington counties and 1121st of 2,786 nationally.
Compared with WA, the US and 2016
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Pierce County, 2017
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 23, 2017 13:45 | November 5, 2017 04:00 | 12d 14h | 13,675 | 34K |
| 2 | April 13, 2017 13:00 | April 13, 2017 17:45 | 4h 45m | 12,505 | 8,101 |
| 3 | April 23, 2017 01:15 | April 23, 2017 04:45 | 3h 30m | 10,200 | 14K |
| 4 | November 20, 2017 14:30 | November 21, 2017 00:15 | 9h 45m | 10,175 | 27K |
| 5 | July 17, 2017 13:00 | July 20, 2017 23:30 | 3d 10h | 9,516 | 9,642 |
| 6 | November 13, 2017 10:15 | November 15, 2017 18:15 | 2d 8h | 9,022 | 63K |
| 7 | October 22, 2017 03:30 | October 23, 2017 04:45 | 1d 1h | 8,157 | 33K |
| 8 | April 7, 2017 16:15 | April 11, 2017 22:15 | 4d 6h | 8,089 | 50K |
| 9 | October 18, 2017 06:00 | October 21, 2017 00:15 | 2d 18h | 7,969 | 43K |
| 10 | February 23, 2017 01:15 | February 23, 2017 04:00 | 2h 45m | 5,825 | 9,839 |
Outage episodes by size in 2017: 104 reached 100+ customers, 47 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 Pierce County reported on EIA Form 861 for 2017, 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 | 2017 | 8.0 hrs | 1.80 | 2.9 hrs | 1.12 |
| PUD No 1 of Lewis County | 2017 | 2.8 hrs | 1.21 | 2.2 hrs | 1.06 |
| Peninsula Light Company | 2017 | 2.9 hrs | 1.84 | 37 min | 0.51 |
| Bonneville Power Administration | - | - | - | - | - |
| Puget Sound Energy Inc,pugetsoundenergy | - | - | - | - | - |
| City of Tacoma - (WA) | - | - | - | - | - |
| PUD No 3 of Mason County | - | - | - | - | - |
| Tanner Electric Coop | - | - | - | - | - |
| City of Milton - (WA) | - | - | - | - | - |
| Elmhurst Mutual Power & Light Co | - | - | - | - | - |
| Lakeview Light & Power | - | - | - | - | - |
| Ohop Mutual Light Company, Inc | - | - | - | - | - |
| Parkland Light & Water Company | - | - | - | - | - |
| Town of Eatonville - (WA) | - | - | - | - | - |
| Town of Ruston - (WA) | - | - | - | - | - |
| Town of Steilacoom | - | - | - | - | - |
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 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 190,282 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. Pierce County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Pierce County, WA annual power outage report, 2017, 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/2017/washington/pierce-county