Grant County Power Outage History
2019–2023 · Washington
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 24, 2019 | 0 hrs | 2,026 (4%) | Unnamed event |
| Aug 10, 2019 | 1 hrs | 1,457 (3%) | Unnamed event |
| Feb 23, 2020 | 27 hrs | 1,307 (2%) | Unnamed event |
| Dec 27, 2020 | 1 hrs | 920 (2%) | Freezing Fog |
| May 31, 2020 | 10 hrs | 776 (1%) | Thunderstorm Wind |
Over the 5 years from 2019 to 2023, Grant County recorded 23 distinct power outage events, averaging 3.7 hours per event.
The single worst outage on record in Grant County started April 24, 2019, lasting 0 hours and leaving up to 2,026 customers without power (4% of the county) at its peak.
May has historically been the worst month for outages in Grant County, with 5 events recorded during that month across the dataset.
Based on this history, Grant County earns a Reliability Grade of A, placing it in the 99th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Grant County's outage profile
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Similar counties in Washington
Counties with the closest reliability grade and national percentile to Grant County.
| County | Grade | National percentile |
|---|---|---|
| Klickitat County | A | 99th |
| Franklin County | A | 98th |
| Skamania County | A | 99th |
| Okanogan County | A | 97th |
| Benton County | A | 95th |
FAQ
How often does power go out in Grant County?
Between 2019 and 2023, Grant County recorded 23 outage events, averaging 3.7 hours each.
What is Grant County's reliability grade?
Grant County has a Reliability Grade of A, in the 99th national percentile.
What was the worst power outage in Grant County?
The worst outage on record started April 24, 2019, lasting 0 hours and affecting up to 2,026 customers.