"The commissioning of one 765kV (kilovolt) Raichur-Solapur transmission line by Power Grid Corporation and synchronous interconnection of Southern Regional grid with the rest of the grid was achieved in December 2013," an official statement said.

The second 765kV Raichur–Solapur transmission line implemented through private sector participation has been completed on June 30, 2014, with guidance from Power Grid, the statement said.

The transmission line connects Raichur in Karnataka with Solapur in Maharashtra.

With both the transmission lines now in operation, the interconnection has helped in achieving a pan-India synchronous grid of 2,49,000 MW, one of the largest synchronous operating grids in the world, it added.

This transmission link will help in establishing reliable and resourceful infrastructure for import of power from the regional grids of northern, eastern, western and north-eastern parts to southern region during the time of peak demand, it said adding the line will also facilitate export of surplus power from southern region during off-peak demand.

"Augmentation of inter-regional capacity of southern region with rest of the grid will help in overcoming the constraints being faced in meeting the region’s maximum demand during summer season with the existing inter-regional links of southern region with western and eastern regions," the statement added.

It will provide access to bigger market for the existing and envisaged renewable generation capacity addition in resource rich southern region.

Synchronous operation of the southern region with rest of the country will give a boost to economic growth, it further added.

Earlier this week, Modi laid the foundation stone of Leh-Kargil-Srinagar transmission system in Jammu & Kashmir being executed by Power Grid Corporation.

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