A Power Purchase Agreement (PPA) specifies the contract between two parties: a) the seller, who generates electricity,and; b) the buyer, who is looking to buy electricity. It defines all the terms for the sale between the two. A PPA secures the payment stream for a Build-Own Transfer (BOT) or concession project for an independent power plant (IPP). It is between the purchaser (often a state-owned electricity utility) and a privately owned power producer.
