PowerGrid Corporation Limited celebrated the anniversary of the achievement of “One Nation One Grid”, as a part of Azadi Ka Amrit Mahotsav.

Highlights

On this occasion, Free health check-up and medical camps were organised across 70 locations.

History of National Grid in India

• In India, Grid management started in sixties on regional basis. Initially, grids were inter-connected to form regional grid. Following this, India was divided into 5 regions on the basis of grid-

1. Northern Grid
2. Eastern Grid
3. Western Grid
4. North Eastern Grid and
5. Southern region.

• The North Eastern and Eastern Grid were connected in October 1991.
• Western Grid and North Eastern Grid were interconnected in March 2003.
• In 2006, North and East grids were interconnected.
• Thus, 4 regional grids Northern, Eastern, Western and North Eastern grids were inter-connected to form a central grid operating at one frequency.
• Southern Region was connected to Central Grid in 2013, with the commissioning of 765kV Raichur-Solapur Transmission line.
• With this, ‘ONE NATION’-‘ONE GRID’-‘ONE FREQUENCY’ objective was achieved.

Total Transmission Capacity

Currently, India has a total inter-regional transmission capacity of about 1,12,250 MW. It is likely to enhance to about 1,18,740 MW by 2022.