GS 3: Disaster Management

Why in News?

Power Grid Corporation of India Ltd. (POWERGRID), a Navratna Central Public Sector Enterprise under the Ministry of Power, Government of India is playing a major role in quick restoration of power supply in the state of Odisha.

POWERGRID:

• Power Grid Corporation of India Limited (POWERGRID), is an Indian state-owned electric utility company headquartered in Gurugram, India.
• POWERGRID transmits about 50% of the total power generated in India on its transmission network.

Evolution of National Grid:

Grid management on regional basis started in sixties.

Initially, State grids were inter-connected to form regional grid and India was demarcated into 5 regions namely Northern, Eastern, Western, North Eastern and Southern region.

First the North Eastern and Eastern grids were connected.

Next the western Grid and the northern grid was interconnected with the former grid.

In 2013 Southern Region was connected to Central Grid in Synchronous mode with the commissioning of Raichur-Solapur Transmission line thereby achieving ‘ONE NATION’-‘ONE GRID’-‘ONE FREQUENCY’