The following words and phrases when used in this chapter shall have the meanings given to them in this section unless the context clearly indicates otherwise:

“Municipal power agency.” A separate body politic and corporate under the laws of this Commonwealth created by agreement between or among two or more boroughs pursuant to section 24A04 (relating to municipal power agencies).

“Project.” Electric plants, hydroelectric plant works, system, facilities or real or personal property, together with their parts and appurtenances, used or useful in connection with the generation, production, transmission, purchase, sale, exchange or interchange of electric power or energy, or any interest therein or right to capacity thereof.

“Revenue bond.” An instrument imposing an obligation for the repayment of money borrowed, payable as to both principal and interest exclusively from the income and revenues derived from an interest in an electric plant or project.