Connecticut solar permitting
Grade distribution
Overview
Every Connecticut county is scored on the SitePath solar permitting index. About half are graded A or B, meaning they present low to moderate permitting risk for utility-scale solar projects. About half sit in the C range — moderate risk with meaningful process uncertainty.
The most favorable jurisdictions in Connecticut include Fairfield County (grade B), Middlesex County (grade B), New London County (grade B). The most challenging include Tolland County (grade C), Litchfield County (grade C), Windham County (grade C).
Connecticut's RPS framework (RPS 48% by 2030) has a mixed effect on local solar permitting: state incentives can accelerate projects, but county boards often act independently of state policy direction. No Connecticut counties currently have an active utility-scale solar moratorium.
All counties — sorted by risk score (best first)
| County | Grade | Score | Trajectory | Moratorium |
|---|---|---|---|---|
| Fairfield County | B | 33 | — | |
| Middlesex County | B | 35 | — | |
| New London County | B | 41 | — | |
| New Haven County | B | 41 | — | |
| Hartford County | C | 45 | — | |
| Tolland County | C | 47 | — | |
| Litchfield County | C | 50 | — | |
| Windham County | C | 50 | — |
See the full interactive map
County grades, scores, and ordinance data are also available on the interactive county map with filtering by grade, state, and risk factor.
Open the county map →About SitePath scoring
Every U.S. county is scored 0–100 on solar permitting risk (lower is friendlier to development). The grade is a weighted composite of compliance stringency, market saturation, regulatory trajectory, and data uncertainty. Every figure traces back to a primary government document. Read the full methodology →
SitePath Intelligence is a research platform. Data verified as of 2026-05-02. Scores update on a quarterly review cycle.