County annual report · FIPS 53015
2020 Cowlitz County, WA Power Outage Report
In 2020, customers in Cowlitz County, WA went without power for an average of 0.1 hours, a total of 3,684 customer-hours (Washington average 4.2 hours). That ranks 37th worst of 37 Washington counties and 2952nd of 3,019 nationally.
Compared with WA, the US and 2019
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Cowlitz County, 2020
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 22, 2020 08:30 | December 22, 2020 09:15 | 45m | 565 | 424 |
| 2 | December 23, 2020 02:45 | December 23, 2020 05:30 | 2h 45m | 565 | 937 |
| 3 | September 8, 2020 02:30 | September 8, 2020 05:00 | 2h 30m | 382 | 955 |
| 4 | November 6, 2020 08:15 | November 6, 2020 13:15 | 5h | 185 | 393 |
| 5 | September 9, 2020 02:15 | September 11, 2020 01:45 | 1d 23h | 38 | 657 |
| 6 | November 4, 2020 16:45 | November 4, 2020 22:30 | 5h 45m | 25 | 82 |
| 7 | June 13, 2020 22:45 | June 13, 2020 23:15 | 30m | 14 | 7 |
| 8 | August 2, 2020 00:00 | August 2, 2020 05:30 | 5h 30m | 14 | 60 |
| 9 | September 13, 2020 15:00 | September 13, 2020 20:00 | 5h | 9 | 35 |
| 10 | September 24, 2020 01:30 | September 24, 2020 03:45 | 2h 15m | 6 | 14 |
Outage episodes by size in 2020: 4 reached 100+ customers, 0 reached 1,000+ customers, 0 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 Cowlitz County reported on EIA Form 861 for 2020, 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 |
|---|---|---|---|---|---|
| PacifiCorp | 2020 | 6.8 hrs | 1.88 | 2.0 hrs | 1.22 |
| PUD No 1 of Lewis County | 2020 | 7.2 hrs | 2.69 | 4.3 hrs | 1.91 |
| PUD No 1 of Cowlitz County | 2020 | 2.5 hrs | 1.06 | 2.0 hrs | 0.88 |
| Bonneville Power Administration | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 87% of Washington's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 50,751 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. Cowlitz County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Cowlitz County, WA annual power outage report, 2020, 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/2020/washington/cowlitz-county