An energy certificate is a transferable certificate, record or guarantee, in any form (including electronic) in relation to the amount of a specific type of energy or material goods consumed by an energy conversion device in the production of a quantity of energy or material goods and/or the attributes of the method and quality of its production. Energy certificates for renewable energy are also referred to as: Support certificates are also used in the United States of America, Australia, Turkey and Japan. They are under consideration elsewhere, including Russia and South Africa.