(35 ILCS 200/10-605)
Valuation of wind energy devices.
Beginning in assessment year 2007, the fair cash value of wind energy devices shall be determined by subtracting the allowance for physical depreciation from the trended real property cost basis. Functional obsolescence and external obsolescence may further reduce the fair cash value of the wind energy device, to the extent they are proved by the taxpayer by clear and convincing evidence.
(Source: P.A. 95-644, eff. 10-12-07.)