Currently, Goa’s base electricity demand is 650 MW. The power demand is primarily catered through the Western Grid via the 400kV Kolhapur-Mapusa line, and from the south, through a single 220kV line. 

In 2015, the Ministry of Power, envisaged the Goa Tamnar Transmission Project Limited (GTTPL) to create an additional source of power for Goa.  Subsequently, the decision to provide a new 400 kV substation in South Goa along with its interconnections with the Inter State Transmission System was discussed and approved in the various meetings convened by the Standing Committee on Power System Planning and Standing committees of Western Region and Southern Region in 2016.

The GTTPL project, once operational, will play a vital role in meeting Goa’s increasing power requirements and providing long-term energy security to the state. It will provide residents and industries in Goa with a highly reliable power feed by opening access to both Western and Southern grids, thereby reducing the dependence of this region on expensive and polluting diesel based power.