There is appropriated from the general fund $1,651,000.00 for reimbursement of governmental units and school districts for the amount by which property tax revenue, excluding revenue included in the calculation of payments made under section 21(1) of the state school aid act of 1979, Act No. 94 of the Public Acts of 1979, being section 388.1621 of the Michigan Compiled Laws, is reduced as a result of the inclusion of a power generating facility or a portion of a power generating facility in the definition of lowgrade iron ore mining property.