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Major Achievements
 
  • The power surplus in the state is being sold outside the state through a trading company which facilitates additional revenue.
  • Integration of Sikkim in the Transmission Network of the Eastern Region has been achieved with the commissioning of 132 KV lines from Rangit to Melli and construction of 132/66 KV 100 MVA Substation at Melli.
  • Effective measures are being taken to reduce both the technical and the non-technical losses, especially the non-technical losses by introducing Energy Audit by proper monitoring on all feeders and at distribution transformerlevel to identify high loss areas. The augmentation and strengthening of sub-transmission and distribution system will reduce technical losses.
  • The Diesel Power House at Gangtok was upgraded to 4 MW from the previous capacity of 1.7 MW in 1998.
  • 60 MW Rangit Hydel project in West Sikkim was commissioned in 1999.
  • 2 MW Kalez Khola power project in Dentam in West Sikkim and 3 MW Rabomchu power project in North Sikkim were commissioned in 1995-96 and 1998, respectively.
  • 132 KV transmission line from Rangit to Melli was completed in 2006. Construction of similar transmission lines from Sagbari, Gyalshing to Pelling and Ravangla is currently under execution.Another 132/66 KV sub station LLHP near Gangtok has been commissioned.
  • By 2010, all the 22 power projects of the state will be completed. From these projects the Government of Sikkim will get12 % of free power. This is likely to meet the power shortfall in State and will generate lot of revenues.
  • The state will be earning Rs. 600 crore revenue from these projects.
  • 100 % of the jobs generated in these power projects are being given to the local people depending upon their qualifications. All works which can be carried out by local contractors are being given to them.
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Site Map of Hydel Project
 
 
Introduction :
 
Teesta H.E Project, Stage-V, is one of the six hydropower schemes in a cascade identified on river Teesta in East Sikkim District. The Project headquarter at Singtam is at a distance of 110 kms from nearest airport Bagdogra (Siliguri) and about 90 km from railhead at New Jalpaiguri. It is a run of the river scheme with diurnal storage for peaking during the lean season and will generate 2573 MUs of energy in a 90% dependable year.
 
 
Layout Plan :
 
 
 
SALIENT FEATURES :
 
  Location Distt. East Sikkim in Sikkim
  Approach Nearest Rail Head - New Jalpaiguri, Nearest Airport - Bagdogra.
  Capacity 510 MW (3 x 170 MW)
  Annual Generation 2573 MUs
  Project Cost Rs.2198.04 Crores (April 99 price level)
  Beneficiary States Bihar, Sikkim, West Bengal,Orissa and DVC
  Year of Commissioning/Completion Schedule 2008
 
 
TECHNICAL FEATURES :
 
  96.45 m high concrete gravity dam.
  9.5 m dia, 17.106 km long Head Race Tunnel (Horse shoe shape)
  3 Nos., D-shaped 6 m dia 155 m, 165 m, 175 m long Tail Race Tunnels.
  Underground Power House containing 3 units of 170 MW each.
 
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