US lawWashingtonRegulationsTitle 504 — WASHINGTON STATE UNIVERSITYChapter 504-49 — RENEWABLE ENERGY SYSTEM INCENTIVE PROGRAM504-49-180WAC 504-49-180WAC 504-49-180. Solar energy systemLast amended: 2018Year: 2026Length: 28 wordsOfficial source "Solar energy system" means any device or combination of devices or elements that rely on direct sunlight as an energy source for use in the generation of electricity.PreviousWAC 504-49-175NextWAC 504-49-185