County annual report · FIPS 53053
2019 Pierce County, WA Power Outage Report
In 2019, customers in Pierce County, WA went without power for an average of 2.7 hours, a total of 517K customer-hours (Washington average 2.0 hours). That ranks 17th worst of 37 Washington counties and 1749th of 2,945 nationally.
Compared with WA, the US and 2018
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Pierce County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 8, 2019 00:00 | September 10, 2019 05:30 | 2d 5h | 23,068 | 60K |
| 2 | February 4, 2019 06:30 | February 5, 2019 01:15 | 18h 45m | 15,089 | 46K |
| 3 | January 2, 2019 18:15 | January 6, 2019 10:15 | 3d 16h | 14,682 | 12K |
| 4 | January 6, 2019 19:30 | January 6, 2019 23:15 | 3h 45m | 9,733 | 26K |
| 5 | July 18, 2019 17:00 | July 18, 2019 22:45 | 5h 45m | 8,627 | 16K |
| 6 | November 25, 2019 11:45 | November 28, 2019 14:00 | 3d 2h | 8,347 | 30K |
| 7 | February 27, 2019 01:30 | February 27, 2019 10:15 | 8h 45m | 7,319 | 3,825 |
| 8 | January 7, 2019 19:15 | January 10, 2019 13:30 | 2d 18h | 5,125 | 13K |
| 9 | January 7, 2019 09:30 | January 7, 2019 17:45 | 8h 15m | 5,113 | 6,970 |
| 10 | February 9, 2019 02:00 | February 12, 2019 00:15 | 2d 22h | 4,405 | 31K |
Outage episodes by size in 2019: 131 reached 100+ customers, 44 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 Pierce County reported on EIA Form 861 for 2019, 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 |
| City of Tacoma - (WA) | 2018 | 86 min | 0.77 | 56 min | 0.49 |
| Peninsula Light Company | 2018 | 3.0 hrs | 1.86 | 32 min | 0.39 |
| Bonneville Power Administration | - | - | - | - | - |
| Puget Sound Energy Inc,pugetsoundenergy | - | - | - | - | - |
| 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 86% of Washington's customers in 2019; 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, 2019, 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/2019/washington/pierce-county