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Home News Power Sector News PGCIL to lay India - Sreelanka under sea 400 KV HVDC cable

PGCIL to lay India - Sreelanka under sea 400 KV HVDC cable

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PGCIL to lay India - Sreelanka under sea 400 KV HVDC cable PowerGrid Corporation of India had taken initial steps to lay down an under sea line between India and Sri Lanka. The proposed undersea high voltage direct current (HVDC) transmission line will be for the transfer of 500MW, which will be subsequently upgraded to 1,000 MW. The proposed undersea transmi-ssion line entails an invest-ment of around Rs 1,500 crore.  Undeterred by the ongoing war by LTTE, the governments of Sri Lanka and India are going ahead with the implementation of an ambitious Rs 1,500-crore under sea transmission link project between the two countries.

A pre-feasibility study is already carried out by the PowerGrid Corporation for the proposed venture. So far undersea HVDC transmission lines are in place between the UK and the France for transmission of 2,000 mw. PowerGrid Corporation’s plan was according to the bilateral investment arrange-ment between India and Sri Lanka. Both the governments have given top priority to this project and are expected to sign an MoU soon, which will pave for an appointment of an agency to carry out a comprehensive under sea / marine survey. The proposed survey is like to be completed in six months and there-after, a detail project report will be prepared.

The link is likely to connect Madurai in Tamil Nadu and Anuradhapura in Sri Lanka’s North Central Province. The transmission line is expected to be 400 KV HVDC overhead lines from Madurai to the Indian coast (near Rameshwaram (139 km), a 400 KV HVDC cable from the Indian sea coast to the Sri Lankan sea coast (39 km), a 400 KV HVDC over-head line from the Sri Lankan coast to Anuradhapura / Puttalam (125km). PowerGrid Corporation, which is India’s central transmission utility, will be the project implementation agency.

Both the governments will decide on sharing expenditure even on carrying out under sea survey and thereafter for the entire project. Initially, it was discussed to share the cost of the undersea/marine survey equally. However, after signing the MoU, the actual sharing pattern will be finalised.

The proposed undersea transmission line could be useful for NTPC which plans to set up 500 mw imported coal-based power project at Trincomalee in Sri Lanka. PowerGrid has installed inter regional transmission capacity of 18,000 mw and plans to increase it to 37,000 mw by 2012.

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