This run-of-river hydropower plant is located in Bukwo District in Eastern Uganda. The Project commenced construction in February 2015, started evacuating power to the grid during May 2017 at reduced capacity due to issues with the quality and stability of the power evacuation line, and formally achieved its commercial operation date (COD) in August 2017 following improvements to the line.
During 2018, the first full calendar year of operation, the Project delivered 19.7 GWh of energy to the grid. Substantial grid failures and outages continued throughout 2018 and were approximately equivalent to 26 % of the potential plant output (energy delivered plus deemed energy), which is especially high. The long-term power evacuation solution for the Siti 1 SHP, and the Siti 2 SHP further downstream comprises a new 132 kV transmission line between Mbale and Bulambuli, which is expected to substantially improve the reliability of power evacuation from the plant. The line is not expected to be completed before 2021.
Adjusting for the partial availability of the power evacuation line, the cumulative energy output of the plant during 2018 would instead have been 26.6 GWh, approximately equivalent to 106 % of the average energy estimated at application stage. Combined with the output generated in 2017, the Project has so far delivered a total of 31.1 GWh to the Ugandan grid.
Figure 4 - Siti 1 SHP - Planned versus Actual Energy Output (2018)