The total project costs are estimated to be US$622 million. It is being financed by the government of Ghana's own resources (US$60m) and two credits by the China Exim Bank: a concessional loan of US$270 million at 2% interest and a commercial loan of US$292 million. Both loans have a grace period of five years and an amortization period of 20 years. The proceeds of 30,000 tons per year of Ghanaian cocoa exports to China, which are placed in an escrow account at the Exim Bank, serve as collateral for the loan. Once the dam becomes operational, 85% of the proceeds of electricity sales from the hydropower plant will go to the escrow account. If not all the proceeds are needed to service the loan, the remainder reverts to the government of Ghana.Oliver Hensengerth:Interaction of Chinese Institutions with Host Governments in Dam Construction:The Bui dam in Ghana , German Development Institute, Discussion Paper 3/2011, p. 37f., retrieved on May 7, 2011 (full version not available on-line)
