Belihul Oya
The project commenced commercial operation in May 2002 with an installed capacity of 2.2 MW and the average energy generation is 9.0 GWh per annum.
Project area is located about 10.5 km North East of Balangoda Town near Balangoda Haputale main road. Catchment area of the project is about 21.5 km2. Upper boundary of the catchment extends up to Horton Plains. This catchment is mainly fed by the North East monsoon and the average rainfall is about 2,638 mm. This produces an average daily flow of 0.98 m3/s. Gross head of the project is 178 m and design flow is 1.5 m3/s. There are two units of Turgo type of turbines with the capacity of 1.1 MW each and M/s Wasserkraft Volk AG was the equipment supplier for the project.
Asupini Ella
The project commenced commercial operation in November 2005 with an installed capacity of 4.0 MW and the average energy generation is 16.3 GWh per annum.
Project area is located in the upper reaches of Maha Oya on the border of Gampola and Mawanella electorates. Catchment area at the intake is 27 km2 with an average rainfall of 2,134 mm per year. This produces an average river flow of 1.5 m3/s. Gross head of the project is 210 m and design flow is 2.2 m3/s. There are two units of Pelton type turbines with capacity of 2 MW each. M/s VA Tech was the equipment supplier for the project.
Kadawala
The project commenced commercial operation in March 2008 with an installed capacity of 6 MW and the average energy generation is 13 GWh per annum.
Project area lies between Watawala and Kadawala in Ginigathhena electorate of Nuwara Eliya district. The project land is owned by Carolina Estate of Watawala Plantations PLC. Catchment area of the project is about 26 km². Since the project site is located in wet zone area, the catchment receives a high annual rainfall (approximately 4,406 mm/year) mainly from Southwest monsoon between May and October. Gross head of the project is 132 m and design flow is 5.2 m3/s. There are two units of horizontal shaft Francis type of turbines and M/s Voith Siemens Hydro Kraftwerkstechnik GmbH & Co was the equipment supplier for the project.
Neluwa
The project commenced commercial operation in January 2008 with an installed capacity of 2.2 MW and the average energy generation is 6.3 GWh per annum.
The project lies across Gin Ganga and is located on the border of Galle and Kalutara districts. Catchment area at the diversion site is about 340 km2. The catchment receives an average annual rainfall of 3,973 mm which produces an average river flow of 22.24 m3/s. Gross head of the project is 6 m and design flow is 40 m3/s. There are two open-fume Kaplan type turbines with a rated output of 1.1 MW per turbine and M/s Gugler Hydro Energy GMbH was the equipment supplier for the project.
Theberton
The project commenced commercial operation in September 2015 with an installed capacity of 1.3 MW and the expected energy generation is 4.6 GWh per annum.
Project lies across Maskeli Oya at Theberton Estate located in Kiriwaneliya village in Nuwara Eliya district. Catchment area is about 10 km2 with an average annual rainfall of 4,086 mm, and an average daily flow of 1.10 m3/s. The project has a design flow of 1.95 m3/s with a gross head of 90m. There is one 0.8 MW Francis type turbine supplied by Fuchun Industry Development Company and one 0.5 MW Turgo type turbine supplied by Hongya Power Generating Equipment.
Campion
The project commenced commercial operation in May 2017 with an installed capacity of 1.2 MW and the expected energy generation is 4.76 GWh per annum.
Project lies across Kehelgamuwa Oya in Bogawantalawa in Nuwara Eliya District. Catchment area is about 27 km² with an average annual rainfall of 2,384 mm and an average daily flow of 1.35 m³/s. The project has a design flow of 2.1 m³/s with a gross head of 76 m. There are two Francis type turbines of 0.4 MW and 0.8 MW each supplied by Hongya Power Generating Equipment, China.
Bambarapana
The project commenced commercial operation in February 2018 with an installed capacity of 2.5 MW and the expected energy generation is 8.69 GWh (after development of the Uma Oya multi-purpose project).
Project lies across Uma Oya in Bambarapana in Badulla District. Catchment area is about 180.5 km2 (after development of the Uma Oya multi-purpose project) with an average annual rainfall of between 1,650-1,880 mm and average daily flow of 4.3 m3/s. The project has a design flow 6.5 m3/s and a gross head of 46 m. There are two Francis type turbines of 1.7 MW and 0.8 MW each supplied by Global Hydro Energy GmbH, Austria.