Kennebec County Power Outage History
2014–2025 · Maine
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 |
|---|---|---|---|
| Dec 18, 2023 | 21 hrs | 67,586 (77%) | High Wind |
| Dec 19, 2023 | 96 hrs | 67,325 (77%) | High Wind |
| Oct 30, 2017 | 132 hrs | 49,159 (56%) | Tropical Storm Phillipe |
| Oct 30, 2017 | 0 hrs | 48,136 (55%) | Tropical Storm Phillipe |
| Oct 30, 2017 | 11 hrs | 47,222 (54%) | Tropical Storm Phillipe |
Over the 12 years from 2014 to 2025, Kennebec County recorded 1,242 distinct power outage events, averaging 3.0 hours per event.
The single worst outage on record in Kennebec County started December 18, 2023 (High Wind), lasting 21 hours and leaving up to 67,586 customers without power (77% of the county) at its peak.
July has historically been the worst month for outages in Kennebec County, with 131 events recorded during that month across the dataset.
Based on this history, Kennebec County earns a Reliability Grade of F, placing it in the 6th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Kennebec County's outage profile
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Similar counties in Maine
Counties with the closest reliability grade and national percentile to Kennebec County.
| County | Grade | National percentile |
|---|---|---|
| Knox County | F | 6th |
| Piscataquis County | F | 7th |
| York County | F | 6th |
| Franklin County | F | 3rd |
| Penobscot County | F | 3rd |
FAQ
How often does power go out in Kennebec County?
Between 2014 and 2025, Kennebec County recorded 1,242 outage events, averaging 3.0 hours each.
What is Kennebec County's reliability grade?
Kennebec County has a Reliability Grade of F, in the 6th national percentile.
What was the worst power outage in Kennebec County?
The worst outage on record started December 18, 2023 (High Wind), lasting 21 hours and affecting up to 67,586 customers.