NEW DELHI, October 19 — The Ministry of Power alongside Power Grid Corporation of India Limited (POWERGRID) announced on Monday that the construction of high-voltage transmission lines under the Green Energy Corridor (GEC) and Inter-State Transmission System (ISTS) has crossed the landmark threshold of 100,000 circuit kilometres (ckm).
Engineered to evacuate bulk green electricity from utility-scale solar parks in Rajasthan and offshore-onshore wind clusters in Gujarat and Tamil Nadu to heavy industrial load centres, the transmission grid incorporates 765 kV double-circuit AC lines and state-of-the-art ±800 kV High Voltage Direct Current (HVDC) bi-pole corridors. The ultra-high voltage architecture curtails long-distance technical line losses to under 3%, maintaining absolute grid synchronization within statutory frequency bands.
Grid-India operational reports confirmed that the milestone expands national inter-regional power transfer capacity to an unprecedented 118,740 MW, guaranteeing that renewable generation curtailed in resource-rich states can be instantly dispatched to eastern and northern urban centres without transmission congestion.
The corporate profile of POWERGRID (Maharatna Central Public Sector Enterprise established in 1989), the engineering advantages of HVDC versus HVAC transmission, regulatory mechanisms under the Central Electricity Regulatory Commission (CERC), and the Electricity Act 2003 are staple topics across UPSC GS-III and engineering services.