Connecticut Power Outage History
17 counties tracked, 2014–2025. County-level reliability grades and outage frequency below.
Counties tracked
17
Avg national percentile
27th
Higher = more reliable
Grade F counties
4
County rankings (worst to best)
| County | Grade | National percentile |
|---|---|---|
| Windham County | F | 15th |
| Litchfield County | F | 18th |
| New London County | F | 19th |
| Fairfield County | F | 19th |
| Middlesex County | D | 21st |
| Tolland County | D | 26th |
| New Haven County | C | 44th |
| Hartford County | C | 58th |
| Capitol County | Not yet graded | — |
| Naugatuck Valley County | Not yet graded | — |
| South Central Connecticut County | Not yet graded | — |
| Southeastern Connecticut County | Not yet graded | — |
| Western Connecticut County | Not yet graded | — |
| Greater Bridgeport County | Not yet graded | — |
| Lower Connecticut River Valley County | Not yet graded | — |
| Northwest Hills County | Not yet graded | — |
| Northeastern Connecticut County | Not yet graded | — |