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November 19, 2021

Sankosh / Sunkosh, Bhutan

By Carmen

Sankosh / Sunkosh is a 2,584.99MW hydro power project. It is planned on Sankosh river/basin in Sarpang, Bhutan. The project is currently in permitting stage. It will be developed in multiple phases. The project construction is likely to commence in 2024 and is expected to enter into commercial operation in 2028.

Project Type Total Capacity (MW) Active Capacity (MW) Pipeline Capacity (MW) Project Status Project Location Project Developer
Hydropower 2,584.99 2,584.99 Permitting Sarpang, Bhutan THDC India


The project is being developed and currently owned by THDC India.

Sankosh / Sunkosh is a reservoir based project. The hydro reservoir capacity is planned to be 1,349.8 million cubic meter. The project is expected to generate 6,365.39 GWh of electricity.

Sankosh / Sunkosh (Sankosh Main Dam) consists of 8 units of francis turbines with 312.5MW nameplate capacity.

Sankosh / Sunkosh (Sankosh Regulating Dam) consists of 3 units of francis turbines with 28.33MW nameplate capacity.

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Development Status

The project construction is expected to commence from 2024. Subsequent to that it will enter into commercial operation by 2028.

About THDC India

THDC India Ltd (THDCIL) formerly Tehri Hydro Development Corporation Ltd, subsidiary of NTPC Limited, is a renewable energy corporation that operates, develops, and maintains hydroelectric projects. The corporation offers services such as power project development and operation, corporate and project planning, construction management, design engineering, erection and commissioning, contracts management, project management, human resource management, financial management, and commercial management. Its projects include Tehri Dam and HPP, Patan Wind Power Project and Dhukwan SHP, among others. The corporation has its operations in Rishikesh and Tehri, India. THDCIL is headquartered in Rishikesh, Uttarakhand, India.


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.

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