Town of Portsmouth
Town of Portsmouth Zoning Ordinance
§ XX-E

SES dimensional requirements

  • 1. Height requirement:
    • a) Ground-mounted SES: The maximum height must not exceed 12 feet from existing grade.
    • b) Building-mounted SES: The total height of the building and photovoltaic panel must not exceed the maximum building height regulation for the zoning district per Article IV, Section B.
  • 2. Yard setbacks and vegetative buffer area requirements:
    • a) Small SES: Yard setback areas are as required by Article IV, Section B, Land Use Requirement Table.
    • b) Medium and large SES:
      • i. Yard setback areas must maintain one-hundred-foot (100') minimum setbacks on all sides, and one-hundred-fifty-foot (150') minimum setbacks on all sides that abut residentially zoned property. Where this standard conflicts with the requirements of yard setbacks in Article IV, Section B, this standard is to supersede.

        [Amended 11-8-2021 by Ord. No. 2021-11-2008]

      • ii. Vegetated buffer areas must be a minimum of thirty feet (30') within the yard setback where abutting residential and Town Center (C-TC) zones and a minimum of twenty feet (20') within the yard setback where abutting all other zones.
  • 3. Lot coverage:
    • a) Small SES: The lot coverage for a small system shall follow the individual zoning district regulations. The lot coverage calculations will be a sum of the area of each individual panel's outer dimensions as if lying flat on the ground plus the footprints of all other countable structures under this article.
    • b) Medium and large SES: Medium and large systems shall meet the setback and screening requirements, and site plan review; otherwise, there is no lot coverage limitation. This exemption is not intended to apply to municipal stormwater regulations, as the panels could have the effect of altering volume, velocity, and discharge pattern of stormwater runoff.