Essex CountyPower Outage History
2014–2025 · Vermont
Bottom 20% least reliable nationally — frequent and/or long outages.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jul 15, 2023 | <1 hr | 2,682 (66%) | Flash Flood |
| Jun 26, 2019 | <1 hr | 2,608 (64%) | Unnamed event |
| Jan 13, 2024 | 30 hrs | 2,214 (55%) | Winter Weather |
| Nov 1, 2019 | 70 hrs | 2,147 (53%) | Flood |
| Dec 19, 2025 | 32 hrs | 2,084 (51%) | High Wind |
Over the 12 years from 2014 to 2025, Essex County recorded 1,024 distinct power outage events, averaging 2.6 hours per event.
The single worst outage on record in Essex County started July 15, 2023 (Flash Flood), lasting less than 1 hour and leaving up to 2,682 customers without power (66% of the county) at its peak.
November has historically been the worst month for outages in Essex County, with 178 events recorded during that month across the dataset.
Based on this history, Essex County earns a Reliability Grade of F, placing it in the 9th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Essex County's outage profile
See more picks in our Best Dual-Fuel Portable Generators for Power Outages roundup.
Champion Power Equipment 4375-Watt Dual Fuel RV Ready Portable Generator with Free 3-Year Warranty
Outage-prep kit
See our outage-prep guides.
Similar counties in Vermont
Counties with the closest reliability grade and national percentile to Essex County.
| County | Grade | National percentile |
|---|---|---|
| Windsor County | F | 11th |
| Orange County | F | 7th |
| Addison County | F | 15th |
| Windham County | F | 2nd |
| Orleans County | D | 24th |
Most reliable counties in Vermont
The top 3 counties in Vermont by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Chittenden County | B | 66th |
| Franklin County | C | 42nd |
| Lamoille County | C | 41st |
Least reliable counties in Vermont
The bottom 3 counties in Vermont by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Windham County | F | 2nd |
| Orange County | F | 7th |
| Essex County | F | 9th |
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 Essex County?
Between 2014 and 2025, Essex County recorded 1,024 outage events, averaging 2.6 hours each.
What is Essex County's reliability grade?
Essex County has a Reliability Grade of F, in the 9th national percentile.
What was the worst power outage in Essex County?
The worst outage on record started July 15, 2023 (Flash Flood), lasting less than 1 hour and affecting up to 2,682 customers.