Grand CountyPower Outage History
What this grade means
Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Sep 8, 2020 | 30 hrs | 1,163 (6%) | Unnamed event |
| Aug 24, 2020 | <1 hr | 888 (4%) | Unnamed event |
| Jul 13, 2020 | <1 hr | 888 (4%) | Thunderstorm Wind |
| Jul 13, 2020 | 4 hrs | 850 (4%) | Thunderstorm Wind |
| Jun 1, 2020 | <1 hr | 692 (3%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Grand County, Colorado that day.
Over the 4 years from 2017 to 2020, Grand County recorded 52 distinct power outage events, averaging 11.1 hours per event.
The single worst outage on record in Grand County started September 8, 2020, lasting 30 hours and leaving up to 1,163 customers without power (6% of the county) at its peak.
October has historically been the worst month for outages in Grand County, with 14 events recorded during that month across the dataset.
Based on this history, Grand County earns a Reliability Grade of A, placing it in the 95th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Colorado
Counties with the closest reliability grade and national percentile to Grand County.
| County | Grade | National percentile |
|---|---|---|
| Gunnison County | A | 97th |
| Montrose County | A | 93rd |
| Washington County | A | 98th |
| Baca County | A | 98th |
| Rio Blanco County | A | 99th |
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 Grand County?
Between 2017 and 2020, Grand County recorded 52 outage events, averaging 11.1 hours each.
What is Grand County's reliability grade?
Grand County has a Reliability Grade of A, in the 95th national percentile.
What was the worst power outage in Grand County?
The worst outage on record started September 8, 2020, lasting 30 hours and affecting up to 1,163 customers.