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

SES Classifications

There are four categories of solar energy systems contemplated by this zoning ordinance, and they are as follows:

  • 1. Roof-mounted system: a solar energy system that is accessory to a primary structure. An accessory roof-mounted system shall be installed only on the roof of a structure.
  • 2. Small SES: a ground-mounted solar energy system that is an accessory use to the primary structure use. A small system shall consist of no more than 1,600 square feet of solar panel surface area.
  • 3. Medium SES: a ground-mounted solar energy system that is the primary use or an accessory use of a lot or lots which may be designed to produce more energy than consumed by the primary use of the property as a secondary use. A medium system shall consist of more than 1,600 square feet of solar panel surface area, but equal to or less than 40,000 square feet of solar panel surface area.
  • 4. Large SES: a ground-mounted solar energy system that is the primary use or an accessory use of a lot or lots which may be designed to produce more energy than consumed by the primary use of a lot or lots as a secondary use. A large system shall consist of more than 40,000 square feet of solar panel surface area.