PHASE I
| Date | Activity |
| October 2007 | Commenced Field Investigations |
| January 2008 | Commenced Preparatory Works |
| December 2008 | River Diversion Completed |
PHASE II
| Date | Activity |
| January – November 2009 | Riverbed excavation & foundation works |
| December 2009 | Commenced Main RCC Dam |
| June 2011 | Commencement of Reservoir Filling |
| May 2013 | Commissioned First Unit |
| July 2013 | Commissioned Second Unit |
| December 2013 | Completion and Commissioning of Bui Generating Station |