Plumas County Power Outage History
2017–2025 · California
Bottom 20% least reliable nationally — frequent and/or long outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 28, 2019 | 7 hrs | 11,918 (64%) | Unnamed event |
| Oct 28, 2019 | 1 hrs | 11,918 (64%) | Unnamed event |
| Oct 28, 2019 | 2 hrs | 11,918 (64%) | Unnamed event |
| Sep 8, 2020 | 1 hrs | 11,645 (62%) | Strong Wind |
| Sep 8, 2020 | 7 hrs | 11,645 (62%) | Strong Wind |
Over the 9 years from 2017 to 2025, Plumas County recorded 772 distinct power outage events, averaging 8.5 hours per event.
The single worst outage on record in Plumas County started October 28, 2019, lasting 7 hours and leaving up to 11,918 customers without power (64% of the county) at its peak.
October has historically been the worst month for outages in Plumas County, with 156 events recorded during that month across the dataset.
Based on this history, Plumas County earns a Reliability Grade of F, placing it in the 1st percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Plumas County's outage profile
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Similar counties in California
Counties with the closest reliability grade and national percentile to Plumas County.
| County | Grade | National percentile |
|---|---|---|
| Mariposa County | F | 1st |
| Calaveras County | F | 1st |
| Amador County | F | 1st |
| Tuolumne County | F | 1st |
| Butte County | F | 1st |
FAQ
How often does power go out in Plumas County?
Between 2017 and 2025, Plumas County recorded 772 outage events, averaging 8.5 hours each.
What is Plumas County's reliability grade?
Plumas County has a Reliability Grade of F, in the 1st national percentile.
What was the worst power outage in Plumas County?
The worst outage on record started October 28, 2019, lasting 7 hours and affecting up to 11,918 customers.