The closing date for interest in participation was 2 September 2004, while the final date for receipt of pre-qualification documents was 16 September.Bids were received by Empresas Públicas de Medellín E.S.P. (EE.PP.M), which also carried out the conceptual design for the project. The scheme will have an installed capacity of 660MW, with an annual generation of 3106GWh. For more information, see the feature article on page 20.