ᐃᑯᒪᐅᑎᑦᓴᒥᒃ ᓂᐅᕕᕈᓐᓇᓂᕐᒧᑦ ᐊᖏᖃᑎᒌᒍᑎ – A legal contract between an electricity generatorᐃᑯᒪᐅᑎᓕᐅᕐᕕᖓ - A machine that converts mechanical energy into electrical energy. and a buyer, defining the terms of purchasing energy.