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Transmission System Strengthening in India System for Transfer Power from New HEPs in Bhutan

Punatsangchhu-I (1200MW), Punatsangchhu-II (990MW), Mangdechhu(720MW) and Wangchhu (570MW) Hydro Generation Projects in Bhutan are at various stages of development. Power from these generation projects would be transferred to India after meeting small local demand in Bhutan

Power from above generation projects is proposed to be brought to Alipurduarsub-station in West Bengal (India). Power transfer from Alipurduar onwards shall be done through + 800 kV, 6000MW Bishwanath Chariyal (Assam) – Alipurduar (West Bengal) – Agra (Uttar Pradesh) HVDC bipole link and Alipurduar – Siliguri & Kishanganj – Darbhanga400kV D/c (quad moose) lines.

Project Elements

Transmission Lines:

Alipurduar - Siliguri 400 kV D/C line (2nd) with Quad moose conductor

Kishanganj - Darbhanga 400kV D/C line with Quad moose conductor

400 kV Bay Requirements

1. 400 kV line bays at Darbhanga: 2 nos.

2. 80 MVAR switchable line reactors (400 Ohm NGR) in each circuit at Darbhanga end of Kishanganj - Darbhanga 400kV D/C (quad) line

Name of project specific SPV

Alipurduar Transmission Limited

Name of the successful Bidder

M/s Kalpataru power Transmission Limited

Date of transfer of SPV to successful Bidder/Effective Date


Scheduled COD of the Project


Levelized Transmission tariff of successful Bidder

1294.24 Millions


Results of Financial Bids

Click here to view Grid Map

Click here to view Comparitive Transmission Charges


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