[Adopted 8-11-1977]
Any building or addition to a building, the construction of which is commenced on or after October 1, 1976, and before October 1, 1991, which is equipped with a solar-energy heating or cooling system shall be exempt from taxation to the extent of the amount by which the assessed valuation of such real property equipped with such solar heating or cooling system exceeds the assessed valuation of such real property equipped with the conventional portion of the heating or cooling system, exclusive of any portion of such system related to solar energy, provided this exemption shall only apply to the first 15 assessment years following construction of such building or addition.