County annual report · FIPS 53011
2021 Clark County, WA Power Outage Report
In 2021, customers in Clark County, WA went without power for an average of 1.8 hours, a total of 388K customer-hours (Washington average 8.7 hours). That ranks 25th worst of 33 Washington counties and 2304th of 2,974 nationally.
Compared with WA, the US and 2020
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Clark County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 13, 2021 06:00 | February 14, 2021 05:00 | 23h | 28,581 | 34K |
| 2 | June 26, 2021 21:45 | June 27, 2021 09:30 | 11h 45m | 21,997 | 12K |
| 3 | January 13, 2021 00:45 | January 14, 2021 11:30 | 1d 10h | 13,732 | 75K |
| 4 | February 15, 2021 04:45 | February 17, 2021 11:15 | 2d 6h | 7,338 | 99K |
| 5 | October 24, 2021 21:00 | October 25, 2021 12:00 | 15h | 6,176 | 16K |
| 6 | August 25, 2021 13:00 | August 25, 2021 20:30 | 7h 30m | 5,766 | 9,056 |
| 7 | June 30, 2021 13:00 | June 30, 2021 14:00 | 1h | 5,716 | 4,268 |
| 8 | August 11, 2021 13:45 | August 11, 2021 16:15 | 2h 30m | 5,246 | 1,316 |
| 9 | May 1, 2021 16:00 | May 1, 2021 20:00 | 4h | 4,073 | 6,116 |
| 10 | September 17, 2021 23:00 | September 18, 2021 01:00 | 2h | 3,177 | 5,685 |
Outage episodes by size in 2021: 126 reached 100+ customers, 46 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 Clark County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| PUD No 1 of Clark County - (WA) | 2021 | 2.0 hrs | 0.88 | 42 min | 0.54 |
| 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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 210,595 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. Clark County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Clark County, WA annual power outage report, 2021, 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/2021/washington/clark-county