Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. An energy carrier is a substance or phenomenon that can be used to produce mechanical work or heat or to operate chemical or physical processes. It is any system or substance that contains energy for conversion as usable energy later or somewhere else. This could be converted for use in, for example, an appliance or vehicle. Such carriers include springs, electrical batteries, capacitors, pressurized air, dammed water, hydrogen, petroleum, coal, wood, and natural gas.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.