Solar energy and silicon product manufacturers

From the 2024 DOR Tax Exemption Study

PDF RCW 82.04.294 Tax on manufacturers or wholesalers of solar energy systems. (Expires July 1, 2032.) (1) Upon every person engaging within this state in the business of manufacturing solar energy systems using photovoltaic modules or stirling converters, or of manufacturing solar grade silicon, silicon solar wafers, silicon solar cells, thin film solar devices, or compound semiconductor solar wafers to be used exclusively in components of such systems; as to such persons the amount of tax with respect to such business is, in the case of manufacturers, equal to the value of the product manufactured, or in the case of processors for hire, equal to the gross income of the business, multiplied by the rate of 0.275 percent. (2) Upon every person engaging within this state in the business of making sales at wholesale of solar energy systems using photovoltaic modules or stirling converters, or of solar grade silicon, silicon solar wafers, silicon solar cells, thin film solar devices, or compound semiconductor solar wafers to be used exclusively in components of such systems, manufactured by that person; as to such persons the amount of tax with respect to such business is equal to th