[1] Upon completion, the Moragolla Power Station would have a gross installed capacity of 30 megawatts from two francis turbines, capable of generating approximately 85 GWh annually.
[2] Preliminary assessments and feasibility studies of the hydroelectric dam and power station began on 24 September 2012,[2] with an estimated commissioning date in 2021.
The dam is planned to impound the Mahaweli River at Weliganga and have five spillways,[1] with the powerhouse located approximately 500 m (1,600 ft) from the tailrace discharge of the Kotmale Power Station.
The construction of the Moragolla Dam and underground penstocks posed significant threats to the endangered green labeo fish species in the project site.
Moragolla Hydro Power Plant consists of 37 m high dam with five spillway gates, intake, head race tunnel, surge tank, penstock tunnel and shaft, power house with switchyard, relocation of irrigation and access roads.