Section 7-9-112 - Deduction; gross receipts; solar energy systemsA. Receipts from the sale and installation of solar energy systems may be deducted from gross receipts. B. As used in this section, "solar energy system" means an installation that is used to provide space heat, hot water or electricity to the property in which it is installed and is: (1) an installation that utilizes solar panels that are not also windows, including the solar panels and all equipment necessary for the installation and operation of the solar panels; (2) a dark-colored water tank exposed to sunlight, including all equipment necessary for the installation and operation of the water tank as a part of the overall water system of the property; or (3) a non-vented trombe wall, including all equipment necessary for the installation and operation of the trombe wall. Laws 2007, ch. 204, § 10.