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Maryland solar permitting

A sizeable minority at low to moderate risk A sizeable minority at high risk No active solar moratorium
State policy: RPS 50% by 2030

Grade distribution

BCD

Overview

Every Maryland county is scored on the SitePath solar permitting index. A sizeable minority 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. A sizeable minority are rated D or F — high to very high risk, often due to active moratoria, restrictive setback ordinances, or strong local opposition.

The most favorable jurisdictions in Maryland include Anne Arundel County (grade B), Washington County (grade B), St. Mary's County (grade B). The most challenging include Carroll County (grade D), Frederick County (grade D), Harford County (grade D).

At the state level, Maryland's RPS 50% by 2030 commitment creates a supportive macro environment for solar development, though county-level boards retain significant discretion over individual project approvals. No Maryland counties currently have an active utility-scale solar moratorium.

All counties — sorted by risk score (best first)

County Grade Score Trajectory Moratorium
Anne Arundel CountyB33—
Washington CountyB36—
St. Mary's CountyB38—
Kent CountyB40—
Baltimore CityB40—
Worcester CountyB41—
Allegany CountyC43—
Garrett CountyC44—
Queen Anne's CountyC45—
Talbot CountyC45—
Baltimore CountyC46—
Dorchester CountyC47—
Prince George's CountyC47—
Cecil CountyC49—
Somerset CountyC49—
Wicomico CountyC50—
Caroline CountyC50—
Charles CountyD52—
Howard CountyD53—
Montgomery CountyD55—
Calvert CountyD57—
Carroll CountyD63—
Frederick CountyD65—
Harford CountyD65—

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.