Exempting from the property tax personal property of a certain electric generation facility, specifying certain facility qualification and construction commencement requirements; excluding the facility from the definition of commercial industrial property under tax relief area revenue distribution (fiscal disparities) provisions; exempting from the sales tax building materials and supplies and certain machinery and equipment used in the construction or operation of the gasification facility; authorizing local government units to grant property tax abatements for the facility, limit; temporarily exempting a certain wind energy conversion system associated with the facility from the personal property tax, specifying certain system developer schedule filing requirements (ra)