As used in this chapter, the following terms shall have the meanings indicated:
HEIGHTWhen referring to a tower or other structure, the height shall be measured from existing or natural grade, whichever is lower, to the highest point on the tower or other structure, including the base pad and any antenna. The height of a WECS shall be measured from such grade to the apex of the blade in the vertical position.
SITEThe physical location of a WECS, including the related tower and transmission equipment.
SMALL-SCALE (NONCOMMERCIAL) WIND ENERGY CONVERSION SYSTEMA wind energy conversion system consisting of one wind turbine that is incidental and subordinate to another use on the same parcel and that supplies electrical power solely for on-site use, except that when a parcel on which a small-scale WECS is installed also receives electrical power supplied by a utility company, excess electrical power generated by the small-scale WECS, and not presently needed for on-site use, may be used by the utility company in exchange for a reduction in the cost of electrical power supplied by that company to the parcel for on-site use, as long as no net revenue is produced by such excess electrical power.
SWEPT AREAThe largest area of the WECS which extracts energy from the wind stream. In a conventional propeller-type WECS, there is a direct relationship between swept area and the rotor diameter.
TOWERThe support structure, including guyed, monopole and lattice types, upon which a wind turbine or other mechanical device is mounted.
TOWER HEIGHTThe height above grade of the uppermost fixed portion of the tower, excluding the length of any axial rotating turbine blades.
WIND ENERGY CONVERSION SYSTEM (WECS)Any mechanism designed for the purpose of converting wind energy into electrical energy. A WECS may include one or more wind turbines, towers, associated control or conversion electronics, transformers and/or other maintenance or control facilities or other components used in the system. A WECS may be either a utility-scale wind energy conversion system or a small-scale wind energy conversion system.
WIND ENERGY FACILITYAny wind energy conversion system or wind measurement tower, including related infrastructure, electrical lines and substations, access roads and accessory structures.
WIND ENERGY SYSTEMThe equipment that converts and then stores or transfers energy from the wind into usable forms of energy and includes any base, blade, foundation, generator, nacelle, rotor, tower, transformer, turbine, vane, wire, substation, maintenance or control facilities or other component used in the system.
WIND MEASUREMENT TOWERA tower used for the measurement of meteorological data such as temperature, wind speed and wind direction.