County annual report · FIPS 53053
2023 Pierce County, WA Power Outage Report
In 2023, customers in Pierce County, WA went without power for an average of 3.7 hours, a total of 701K customer-hours (Washington average 2.6 hours). That ranks 12th worst of 33 Washington counties and 1733rd of 2,977 nationally.
Compared with WA, the US and 2022
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Pierce County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 15, 2023 17:00 | November 16, 2023 08:30 | 15h 30m | 57,100 | 78K |
| 2 | November 11, 2023 07:15 | November 14, 2023 09:15 | 3d 2h | 18,311 | 71K |
| 3 | September 14, 2023 12:15 | September 15, 2023 06:45 | 18h 30m | 18,043 | 4,893 |
| 4 | October 7, 2023 04:30 | October 9, 2023 23:30 | 2d 19h | 12,394 | 17K |
| 5 | March 26, 2023 14:45 | March 27, 2023 02:00 | 11h 15m | 7,587 | 21K |
| 6 | February 3, 2023 16:45 | February 4, 2023 05:15 | 12h 30m | 7,358 | 17K |
| 7 | May 25, 2023 14:45 | May 26, 2023 03:15 | 12h 30m | 5,535 | 6,669 |
| 8 | March 28, 2023 15:15 | March 29, 2023 08:00 | 16h 45m | 3,993 | 8,396 |
| 9 | October 14, 2023 03:45 | October 17, 2023 13:30 | 3d 9h | 3,705 | 6,014 |
| 10 | August 24, 2023 02:00 | August 27, 2023 02:00 | 3d | 3,580 | 4,150 |
Outage episodes by size in 2023: 161 reached 100+ customers, 74 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 2023, 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 | 2023 | 3.4 hrs | 1.30 | 2.8 hrs | 1.10 |
| PUD No 1 of Lewis County | 2023 | 7.4 hrs | 3.04 | 7.1 hrs | 2.94 |
| City of Tacoma - (WA) | 2023 | 55 min | 0.60 | 55 min | 0.60 |
| Peninsula Light Company | 2023 | 3.0 hrs | 1.34 | 1.8 hrs | 0.88 |
| 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 n/a of Washington's customers in 2023; 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, 2023, 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/2023/washington/pierce-county