Definitions. As used in this section, the following terms shall have the meanings indicated:
AGRIVOLTAICS
A solar energy system co-located on the same parcel of land as agricultural production, including crop production, grazing, apiaries, or other agricultural products or services.
BATTERY ENERGY STORAGE SYSTEM
A system of battery devices that enable energy from renewables, like solar and wind, to be stored and then released when customers need power most.
COMMUNITY SOLAR GARDEN
A solar energy system that provides retail electric power (or a financial proxy for retail power) to multiple community members or businesses residing or located off-site from the location of the solar energy system. Also referred to as "shared solar."
EXISTING SOLAR ENERGY SYSTEMS
A solar energy system lawfully existing at the time of the adoption or amendment of this chapter may be continued even if such a system does not conform to the provisions of this chapter. However, it shall be deemed a nonconforming use or structure, and the provisions of § 525-28, Nonconformities, of this chapter shall apply.
GRID-INTERTIE SOLAR ENERGY SYSTEM
A photovoltaic solar energy system that is connected to an electric circuit served by an electric utility company.
MICROGRID
A self-sufficient energy system that serves individual or multiple buildings and/or a discrete geographic footprint, such as a college campus, medical center, business center or neighborhood. Microgrids must be local, independent, and intelligent. Microgrids may include the use of battery energy storage systems.
PASSIVE SOLAR ENERGY SYSTEM
A solar energy system that captures solar light or heat without transforming it to another form of energy or transferring the energy via a heat exchanger.
PHOTOVOLTAIC SYSTEM
A solar energy system that converts solar energy directly into electricity.
RENEWABLE ENERGY EASEMENT, SOLAR ENERGY EASEMENT
An easement that limits the height or location, or both, of permissible development on the burdened land in terms of a structure or vegetation, or both, for the purpose of providing access for the benefited land to wind or sunlight passing over the burdened land, consistent with § 700.35, Wis. Stats.
ROOF PITCH
The final exterior slope of a roof calculated by the rise over the run, typically but not exclusively expressed in twelfths such as 3/12, 9/12, 12/12.
ROOF-MOUNT
A form of building-mounted solar energy system in which solar panels are mounted on a rack that is fastened to or ballasted on a structure's roof. Roof-mount systems are accessory to the principal use.
SOLAR ACCESS
Unobstructed access to direct sunlight on a lot or building through the entire year, including access across adjacent parcel air rights, for the purpose of capturing direct sunlight to operate a solar energy system.
SOLAR CARPORT
A solar energy system of any size that is installed on a carport structure that is accessory to a parking area, and which may include electric vehicle supply equipment or energy storage facilities.
SOLAR COLLECTOR
A device, structure or a part of a device or structure for which the primary purpose is to transform solar radiant energy into thermal, mechanical, chemical, or electrical energy. The collector does not include frames, supports, or mounting hardware.
SOLAR DAYLIGHTING
Capturing and directing the visible light spectrum for use in illuminating interior building spaces in lieu of artificial lighting, usually by adding a device or design element to the building envelope.
SOLAR ENERGY
Radiant energy received from the sun which can be collected in the form of heat or light by a solar collector.
SOLAR ENERGY SYSTEM (SES)
A device, array of devices, or structural design feature, the purpose of which is to provide for generation or storage of electricity from sunlight, or the collection, storage and distribution of solar energy for space heating or cooling, daylight for interior lighting, or water heating. "Solar energy systems" is further defined in this section, but exclude the following which are permitted accessory uses in all districts:
(1)
Solar-powered light fixtures that are ground- or wall-mounted.
(2)
Solar-powered electric fences.
SOLAR ENERGY SYSTEM, BUILDING-INTEGRATED
A solar energy system that is an integral part of a principal or accessory building, rather than a separate mechanical device, replacing or substituting for an architectural or structural component of the building. Building-integrated systems include but are not limited to photovoltaic or hot water solar energy systems that are contained within roofing materials, windows, skylights, and awnings.
SOLAR ENERGY SYSTEM, BUILDING-MOUNTED
A form of small-scale or mid-scale SES considered as an accessory use which consists of the installation of equipment mounted on a building or incorporated into exterior building materials that uses sunlight to produce electricity or provide heat or water to a building: These systems require a building permit that shall be reviewed and issued by the Building Inspector.
SOLAR ENERGY SYSTEM, GROUND-MOUNTED
A form of SES mounted on a rack or pole that rests or is attached to the ground. Ground-mount systems can be either accessory or principal uses depending on its scale classification.
SOLAR ENERGY SYSTEM, LARGE SCALE (100MW+)
A commercial solar energy system that converts sunlight into electricity for the primary purpose of wholesale sales of generated electricity. A large-scale solar energy system is the principal land use for a parcel(s) generating 100MW or more and will require approval by the Wisconsin Public Service Commission.
SOLAR ENERGY SYSTEM, MID-SCALE (30kW to 100MW)
Either a privately owned solar energy system that converts sunlight into electricity for the purpose of providing power to structures and facilities on the same site, or a commercial solar energy system that converts sunlight into electricity for the primary purpose of wholesale sales of generated electricity. A mid-scale solar energy system can be a principal or accessory land use for a parcel(s) generating between 30kW to 100MW and does not require approval by the Wisconsin Public Service Commission. These may be allowed as an accessory use if a special exception is granted.
SOLAR ENERGY SYSTEM, SMALL-SCALE (Less than 30kW)
A privately owned solar energy system that converts sunlight into electricity for the primary purpose of providing power to structures and facilities on the same site. A small-scale solar energy system is an accessory land use for a parcel(s) generating less than 30kW and does not require approval by the Wisconsin Public Service Commission. A small-scale SES may be ground-mounted or building-mounted.
SOLAR HOT AIR SYSTEM, SOLAR AIR HEAT, or SOLAR FURNACE
A solar energy system that includes a solar collector to provide direct supplemental space heating by heating and recirculating conditioned building air. The most efficient performance includes a solar collector to preheat air or supplement building space heating, typically using a vertically mounted collector on a south-facing wall.
SOLAR HOT WATER SYSTEM
A system that includes a solar collector and a heat exchanger that heats or preheats water for building heating systems or other hot water needs, including residential domestic hot water and hot water for commercial processes.
SOLAR MOUNTING DEVICES
Racking, frames, or other devices that allow the mounting of a solar collector onto a roof surface or the ground.
SOLAR RESOURCE
A view of the sun from a specific point on a lot or building that is not obscured by any vegetation, building, or object for a minimum of four hours between the hours of 9:00 a.m. and 3:00 p.m. Standard time on all days of the year and can be measured in annual watts per square meter.