County annual report · FIPS 53011
2018 Clark County, WA Power Outage Report
In 2018, customers in Clark County, WA went without power for an average of 0.6 hours, a total of 120K customer-hours (Washington average 2.1 hours). That ranks 19th worst of 27 Washington counties and 2475th of 2,798 nationally.
Compared with WA, the US and 2017
Coverage line is EAGLE-I's share of Washington customers tracked each year.
Biggest outages in Clark County, 2018
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 15, 2018 00:15 | December 15, 2018 12:15 | 12h | 6,146 | 14K |
| 2 | June 27, 2018 23:45 | June 28, 2018 01:15 | 1h 30m | 5,295 | 6,998 |
| 3 | March 13, 2018 03:45 | March 13, 2018 13:00 | 9h 15m | 3,666 | 6,837 |
| 4 | June 24, 2018 09:45 | June 24, 2018 14:45 | 5h | 3,401 | 3,788 |
| 5 | August 5, 2018 14:15 | August 5, 2018 14:30 | 15m | 2,825 | 706 |
| 6 | July 6, 2018 08:00 | July 6, 2018 12:45 | 4h 45m | 2,723 | 5,278 |
| 7 | April 23, 2018 18:15 | April 23, 2018 19:45 | 1h 30m | 2,696 | 1,727 |
| 8 | July 17, 2018 05:45 | July 17, 2018 12:00 | 6h 15m | 2,439 | 4,863 |
| 9 | July 30, 2018 01:30 | July 30, 2018 05:30 | 4h | 2,175 | 2,187 |
| 10 | April 1, 2018 01:15 | April 1, 2018 15:30 | 14h 15m | 2,153 | 1,274 |
Outage episodes by size in 2018: 91 reached 100+ customers, 21 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 Clark County reported on EIA Form 861 for 2018, 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) | 2018 | 36 min | 0.43 | 36 min | 0.43 |
| 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 71% of Washington's customers in 2018; 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, 2018, 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/2018/washington/clark-county