Ghunsa Khola Hydroelectric Project is proposed to be developed in Lelep VDC of Taplejung District of Nepal, utilizing the flow of Ghunsa Khola, a tributary of Arun River. The scheme is 71.5 MW Run-of-Rive type hydropower project with a gross head of 358 m and design discharge of 27.31 cumec at 38.75% flow exceedance level. Based on the earlier study, the proposed major structures of the project are a 9 m high and 49.5 m long weir and two intakes (4 m x 3.68 m). A two chambered underground desanding basin of 76 m length. The headrace tunnel is 3.675 km long, which will lead to a 30.1 m high surge shaft. The design flow will be directed towards the underground powerhouse through a 345.16 m high vertical shaft followed by a 215 m long horizontal penstock tunnel. The estimated annual energy generation from the project will be 414.853 GWh and the electricity generated will be evacuated through the Koshi Corridor.

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