Supply and operating device means one or more components of a system providing power to one or more parts of the system, including such as power and/or voltage control(s) for one or more light sources as e.g. electronic light source control gears;
Ethanol means a high octane gasoline blend stock that is used to make various grades of gasoline.
Fossil fuel-fired means, with regard to a unit:
Biodiesel means a fuel composed of mono-alkyl esters of long chain fatty acids derived from vegetable oils or animal fats, and, in accordance with standards specified by the American society for testing and materials, designated B100, and meeting the requirements of D-6751, as approved by the department of agriculture.