County annual report · FIPS 53007
2020 Chelan County, WA Power Outage Report
In 2020, customers in Chelan County, WA went without power for an average of 0.4 hours, a total of 21K customer-hours (Washington average 4.2 hours). That ranks 35th worst of 37 Washington counties and 2845th 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 Chelan 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 | June 7, 2020 21:15 | June 7, 2020 23:30 | 2h 15m | 1,254 | 1,210 |
| 2 | August 16, 2020 13:15 | August 16, 2020 14:45 | 1h 30m | 666 | 667 |
| 3 | January 15, 2020 18:15 | January 16, 2020 00:45 | 6h 30m | 542 | 3,388 |
| 4 | September 24, 2020 06:15 | September 24, 2020 07:30 | 1h 15m | 507 | 258 |
| 5 | June 30, 2020 16:30 | July 1, 2020 02:45 | 10h 15m | 380 | 581 |
| 6 | June 27, 2020 23:30 | June 28, 2020 08:00 | 8h 30m | 287 | 974 |
| 7 | August 27, 2020 13:45 | August 27, 2020 22:30 | 8h 45m | 181 | 116 |
| 8 | September 7, 2020 18:30 | September 19, 2020 23:00 | 12d 4h | 143 | 9,060 |
| 9 | July 12, 2020 00:30 | July 13, 2020 01:00 | 1d | 139 | 366 |
| 10 | November 14, 2020 01:15 | November 14, 2020 03:15 | 2h | 128 | 256 |
Outage episodes by size in 2020: 13 reached 100+ customers, 1 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 Chelan 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 |
|---|---|---|---|---|---|
| Bonneville Power Administration | - | - | - | - | - |
| PUD No 1 of Chelan County | - | - | - | - | - |
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 ÷ 50,456 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. Chelan County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Chelan 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/). https://massoutage.com/reports/2020/washington/chelan-county