Carson City CountyPower Outage History
What this grade means
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Nov 20, 2019 | 4 hrs | 14,038 (45%) | Unnamed event |
| Aug 31, 2016 | 4 hrs | 11,297 (36%) | Unnamed event |
| Jan 1, 2023 | 94 hrs | 9,209 (30%) | Heavy Snow |
| Dec 31, 2022 | 2 hrs | 6,214 (20%) | Heavy Snow |
| Jan 4, 2023 | 3 hrs | 5,068 (16%) | Heavy Snow |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Carson City County, Nevada that day.
Over the 11 years from 2015 to 2025, Carson City County recorded 339 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Carson City County started November 20, 2019, lasting 4 hours and leaving up to 14,038 customers without power (45% of the county) at its peak.
July has historically been the worst month for outages in Carson City County, with 56 events recorded during that month across the dataset.
Based on this history, Carson City County earns a Reliability Grade of B, placing it in the 71st percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Nevada
Counties with the closest reliability grade and national percentile to Carson City County.
| County | Grade | National percentile |
|---|---|---|
| Churchill County | B | 71st |
| Eureka County | B | 64th |
| Lyon County | C | 58th |
| Elko County | C | 56th |
| Washoe County | C | 54th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Carson City County?
Between 2015 and 2025, Carson City County recorded 339 outage events, averaging 2.7 hours each.
What is Carson City County's reliability grade?
Carson City County has a Reliability Grade of B, in the 71st national percentile.
What was the worst power outage in Carson City County?
The worst outage on record started November 20, 2019, lasting 4 hours and affecting up to 14,038 customers.