Simbuwa Khola Hydroelectric Project is proposed to be developed in Tapethok VDC of Taplejung district of Nepal, utilizing the flow of Simbuwa Khola, a tributary of Arun River. The scheme is 70.34 MW Run-of-Rive type hydropower project with a gross head of 888.6 m and design discharge of 9.24 cumec at 40% flow exceedance level. The major structures of the project are the spillway weir, undersluice and appurtenant structures, approach canal, desanding basin, a headrace tunnel of 4.392 km length, which will lead to a 24.22m high surge shaft. The design flow will be directed towards the powerhouse through 2710.42 m pressure shaft. The annual energy generation from the project will be 378.96 GWh and the electricity generated will be evacuated through the Koshi Corridor.