County annual report · FIPS 53053
2016 Pierce County, WA Power Outage Report
In 2016, customers in Pierce County, WA went without power for an average of 2.0 hours, a total of 381K customer-hours (Washington average 3.2 hours). That ranks 10th worst of 21 Washington counties and 1337th of 2,391 nationally.
Compared with WA, the US and 2015
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Pierce County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 13, 2016 22:45 | March 15, 2016 03:15 | 1d 4h | 14,229 | 70K |
| 2 | December 23, 2016 20:45 | December 24, 2016 06:30 | 9h 45m | 5,821 | 1,487 |
| 3 | February 26, 2016 17:30 | March 3, 2016 11:00 | 5d 17h | 4,755 | 28K |
| 4 | January 25, 2016 21:00 | January 29, 2016 18:15 | 3d 21h | 4,374 | 23K |
| 5 | December 24, 2016 17:15 | December 24, 2016 17:30 | 15m | 2,712 | 678 |
| 6 | November 28, 2016 02:00 | November 28, 2016 04:15 | 2h 15m | 2,561 | 4,695 |
| 7 | January 29, 2016 20:45 | February 3, 2016 21:15 | 5d | 2,544 | 4,669 |
| 8 | November 14, 2016 13:45 | November 15, 2016 01:00 | 11h 15m | 2,483 | 2,437 |
| 9 | December 3, 2016 05:15 | December 3, 2016 09:15 | 4h | 2,253 | 3,990 |
| 10 | January 14, 2016 19:15 | January 14, 2016 21:30 | 2h 15m | 2,245 | 566 |
Outage episodes by size in 2016: 86 reached 100+ customers, 32 reached 1,000+ customers, 1 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 2016, 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 | 2016 | 6.5 hrs | 1.63 | 2.6 hrs | 1.02 |
| PUD No 1 of Lewis County | 2016 | 7.0 hrs | 1.36 | 4.2 hrs | 1.24 |
| Peninsula Light Company | 2016 | 2.7 hrs | 0.98 | 44 min | 0.58 |
| 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 2016; 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, 2016, 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/2016/washington/pierce-county