For the purpose of this chapter, all words defined herein are in addition to all other words defined in other chapters of the City of Grinnell, Municipal Code.
1. Approved Wind Turbine: Wind turbines used in a wind energy system must be approved under a certification program recognized by the American Wind Energy Association.
2. Commercial Wind Energy System: A wind energy system which is intended to produce electricity for sale to a rate regulated or non-regulated utility or for use off site. NO COMMERCIAL WIND ENERGY SYSTEM SHALL BE INSTALLED WITHIN THE CORPORATE LIMITS OF GRINNELL, IA.
3. Height: The height above grade of the wind energy system, including the tower, generating unit, and the highest vertical extension of any blades or rotors. Height shall be measured from the adjacent grade of the tower to the tip of the turbine (blade) at it highest point.
4. Wind Energy System:
A. Dispersed wind energy system: A system that is located on property zoned C-1, C-2, M-1, M-2 and has a rated capacity of one hundred (100) kilowatts or more which is incidental and subordinate to a permitted use on the same parcel and which is intended to produce electricity primarily for use on site.
B. Residential wind energy system: A system that is located on a property zoned R-1, R-2, R-3 and has a rated capacity of up to one hundred (100) kilowatts and which is incidental and subordinate to a permitted use on the same parcel.
A wind energy system shall only be allowed as an accessory use to a permitted principal use and shall require a Special Use Permit. Approval of the Board of Adjustment shall be made prior to construction, installation, alteration, or location of such structure. The owner/operator of the wind energy system shall obtain all other permits required by federal, state, and local agencies prior to construction of the system.
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