Mercer County Power Outage History
2014–2025 · West Virginia
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 |
|---|---|---|---|
| Apr 2, 2025 | 5 hrs | 25,020 (66%) | Unnamed event |
| Sep 27, 2024 | 206 hrs | 24,483 (64%) | Hurricane Helene |
| Jan 6, 2025 | 140 hrs | 13,807 (36%) | Winter Storm |
| Mar 28, 2015 | 5 hrs | 10,864 (29%) | Unnamed event |
| Mar 24, 2018 | 90 hrs | 6,514 (17%) | Winter Storm |
Over the 12 years from 2014 to 2025, Mercer County recorded 739 distinct power outage events, averaging 4.8 hours per event.
The single worst outage on record in Mercer County started April 2, 2025, lasting 5 hours and leaving up to 25,020 customers without power (66% of the county) at its peak.
May has historically been the worst month for outages in Mercer County, with 93 events recorded during that month across the dataset.
Based on this history, Mercer County earns a Reliability Grade of F, placing it in the 10th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Mercer 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 West Virginia
Counties with the closest reliability grade and national percentile to Mercer County.
| County | Grade | National percentile |
|---|---|---|
| Barbour County | F | 10th |
| Monroe County | F | 10th |
| Hampshire County | F | 10th |
| Raleigh County | F | 9th |
| Cabell County | F | 8th |
FAQ
How often does power go out in Mercer County?
Between 2014 and 2025, Mercer County recorded 739 outage events, averaging 4.8 hours each.
What is Mercer County's reliability grade?
Mercer County has a Reliability Grade of F, in the 10th national percentile.
What was the worst power outage in Mercer County?
The worst outage on record started April 2, 2025, lasting 5 hours and affecting up to 25,020 customers.