Two of the three units of 170 MW each are expected to become commercially operational shortly, while the first unit is already functional, the company said in a statement.
The cost of the project is about Rs2,650 crore and the provisional tariff approved by the Central Electricity Regulatory Commission is Rs1.62 per unit. It would generate 2,573 million units of energy annually.
Teesta-V is one of the six hydro projects identified for execution by NHPC in Sikkim. The company has added 1,420 MW of generation capacity in the last one year with the commissioning of 390 MW Dul Hasti project in Jammu and Kashmir, 520 MW Omkareshwar project in Madhya Pradesh, and Teesta-V.
The run-on-river Teesta-V project would benefit Bihar, Orissa, Jharkhand, West Bengal and Sikkim.