Druk Green Power Corporation
Druk Green was incorporated on January 1, 2008, through a merger of the erstwhile Chhukha, Kurichhu, Basochhu and Tala Hydro power corporations with the vision of “Harnessing and Sustaining Bhutan’s Renewable Energy Resources”.
On its formation, Druk Green was placed under the Druk Holding & Investments, the holding company for all government owned corporate entities. Druk Green is a Nu.65 billion company with 1,685 employees (as of October, 2011).The installed hydropower generating capacity of 1,488 MW as detailed below:
|1||Basochhu Hydropower Plant||64 MW|
|2||Chhukha Hydropower Plant||336 MW|
|3||Kurichhu Hydropower Plant||64 MW|
|4||Tala Hydropower Plant||1020 MW|
|5||23 Plants(8 MW)||8 MW|
Chhukha Hydropower Plant
Chhukha Hydroelectric Project, Bhutan’s first mega power project, with an installed capacity of 336 MW, is located on the wangchhu and uses the discharges of the Thimphu, Paro and Haa valleys. The chhukha hydropower plant like many of the other power projects was financed by the government of India through an Agreement which was signed in 1974 between the two governments.
The total cost of the project on completion was Nu.2, 460 million. With the 336 MW installed capacity, the project generates over 1,800 million units annually.
Basochhu Hydropower Plant
The preliminary design of the Basochhu project using the Basochhu and the Rurichhu, both tributaries of the Punatsangchhu, was carried out by 1994.The construction of the project was financed by the government of Austria and the Royal government of Bhutan. The project was built in two stages; the lower stage with an installed capacity of 40 MW commissioned in 2005 at a total cost of Nu. 3,261 million.
The upper stage plant of 24 MW has a mean annual energy generation of 105 million units. The lower stage plant with an installed capacity of 40 MW has a mean annual energy generation of 185 million units.
Kurichhu Hydropower Plant
The first investigations for the Kurichhu hydroelectric project were undertaken in the early 1980s for meeting the energy needs of eastern Bhutan. The detailed project report was reviewed by the National Hydroelectric Power Corporation in 1993, based on which the government of India agreed to finance the construction of the 60 MW project on a turnkey basis in 1994.
With an installed capacity of 60 MW built at a total cost of Nu. 5,600 million, the Kurichhu project generates over 380 million units and with its associated transmission network, it is today the only source of electricity for the eastern and central Dzongkhags of Bhutan.
Tala Hydropower Plant
The tala Hydroelectric Project is located just downstream of the chhukha plant. Based on the Detailed Project Report prepared by the Water & Power Consultancy Services, the Royal government of Bhutan and the government of India entered into an agreement in 1996 to construct the project through financing from the government of India. The government of India funded the total project cost of Nu. 41,258 million, excluding the interest accrued during construction, on 60% grant and 40% loan basis as with the Chhukha and Kurichhu projects.
The tala project is the biggest hydropower plant in Bhutan with an installed capacity of 1,020 MW. It is rated to generate over 4,865 million units annually.