Md. Code, Natural Resources § 3–306.1

In view of the safeguards provided by this subtitle through State units, and to assure the controlling effect of their determinations, any property certified as a suitable site by the Secretary of Natural Resources and placed in inventory as provided in this subtitle or any sites acquired and placed in inventory as provided in this subtitle shall be used and operated for electric generating and associated on-site transmission purposes without regard to any local zoning rule, regulation, law, or ordinance, and this use is not required to be submitted to or approved by any county or municipal zoning board, authority, or unit.