Teesta Urja Limited expects to commission all six units of its 1200 MW Teesta-III hydroelectric project by November 2014. In a review meeting with the Central Electricity Authority, the developer informed that the work on the project had stopped earlier from September 2011 to December 2012 due to earthquake in March 2011, collapse of Rangchangkhola bridge and financial crunch with the company.

The project works restarted in December 2012 and about 60 per cent mobilization has taken place. The reconstruction of Rangchangkhola bridge is nearing completion. The project authorities informed CEA that they now have to take clearance for transport of heavy consignment. The first unit is programmed to be commissioned in May 2014 subject to clearance from Border Road Organization for transportation of heavy consignment to site.

Critical works that need to be expedited at the project site include the hydro-mechanical works since spillway gates are yet to be erected. Another critical area is steel lining of the vertical pressure shafts. Work on these fronts have to be accelerated for commissioning as per the schedule.

Teesta-III project is a run-of-the-river project in North Sikkim district with six units of 200 MW each. The project includes construction of a 60m high concrete faced rockfill dam, two tunnel spillways, one reservoir flushing tunnel, two desilting chambers, 13.86 km long head race tunnel and 1080 m long tail race tunnel. The units of the project will be housed in an underground power house. The project authorities are planning to commission the units from May 2014 to November 2014 at interval of one month each.


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