In energy efficiency and conservation: the technology comprised mainly of solar panels and other electromechanical components that convert solar energy into usable electricity [Section 3.8, DOE Department Circular No. DC2024-06-0021, Guidelines on the Registration Process for Solar Photovoltaics (PV) Installers Under the Government Energy Management Program (GEMP), otherwise known as the Solar PV Installers Registration Process for GEMP]