Green Energy Corridor in Ladakh

Green energy corridor project in Ladakh

The CCEA Sanction of Green energy corridor in Ladakh phase II inter state transmission system for 13 GW renewable projects in Ladakh. Non-existence of any transmission system and adverse climatic conditions in Ladakh, state-of-the-art Voltage Source Converter (VSC) based High Voltage Direct Current (HVDC) system and Extra High Voltage Alternating Current (EHVAC) systems will be deployed.   

The Transmission system would pass through difficult mountainous terrain of high altitude and extreme climatic conditions viz. temperature going as low as minus 45°C, heavy snow (maximum standing snow of approx. 5-6 metres), etc. In order to counter the sub-zero temperature of the region, special kind of steel would have to be used in towers and its associated accessories. The transmission system would also be passing through avalanche prone zones and, thus, state-of-the art technology would be used to establish a first of its kind system in the world in such topography.

Objectives of green energy corridor in ladakh

The interstate transmission system project setting up of about 713 km [or 1268 circuit kilometers (ckm)] transmission lines and two nos. of 5 GW capacity of high voltage direct current (hvdc) terminals. One each at Pang (Ladakh) and Kaithal (Haryana). The project will facilitate evacuation of power from renewable energy (RE) power project comprising of 13 GW capacity along with 12 GWh Battery Energy Storage System (BESS) in Ladakh.

The broad scope of the project is as under.

AC/DC Line	Transmission line stations	km
HVDC Terminals	+350 kV, 5000MW VSC HVDC terminal each at Pang (Leh) and Kaithal (Haryana)
HVDC Line	+ 350 kV HVDC line between Pang and Kaithal	480 km
AC System	400 kV PS-1 (Pang) - Pang Double Circuit (D/C) line	7 km
	400 kV PS-2 (Pang) - Pang D/C line	27 km
	400 kV PS-3 (Pang) - Pang D/C line	41 km
	220 kV Pang - Leh (Phyang) D/C line (single circuit strung)	158 km

 

Implementing agency

The project will be implemented by Power Grid Corporation of India Limited (POWERGRID). The project will be implemented in a single phase and is scheduled to be completed by Financial Year 2029-30.

Central Financial Assistance

The total estimated project cost is Rs. 20,773.70 Crore The approved Central Financial Assistance (CFA) @ 40% of the project cost is Rs. 8,309.48 Crore. The CFA will be capped at Rs. 8,309.48 Crore or 40% of the DPR cost or 40% of project completion cost, whichever is lower

Optical ground wire

The OPGW is envisaged at peaks of the transmission line towers by providing direct optical fiber connectivity between pang and Kaithal. The OPGW in the transmission line is meet power transmission system requirement like control, protection and remote operation etc. The telecom facilities will be as per CERC sharing regulation 2020 through power teleservices limited.

Reference: Green energy corridor in Ladakh pdf

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