The Afulilo Dam is a gravity dam on the Afulilo River about 3 km (1.9 mi) south of Ta'elefaga in the district of Va'a-o-Fonoti on Upolu island of Samoa. The primary purpose of the dam is hydroelectric power generation and it supports a 4 megawatts (5,400 hp) power station. It is the largest hydroelectric power station by installed capacity in Samoa. First studied in 1980, construction on the project began in 1990 and the power station was commissioned in 1993. Funding for the US$26.6 million project was provided by the World Bank, Asian Development Bank, International Development Association, European Investment Bank, and European Economic Community loans and grants.