The project includes four 400 kV double circuit transmission lines spanning 143 km, along with three Gas Insulated Substations (GIS) at Prithla, Kadarpur and Sohna Road, two bay extensions at Dhanonda, and a LILO connection to the 400kV DC Gurgaon-Manesar transmission line.
Notably, it introduces India’s first vertical GIS substations at Prithla, Kadarpur, and Sohna, featuring a multi-storied design with a rooftop 220kV open switchyard. Compared to conventional GIS substations, this innovative approach reduces land usage by 75%, from 12 acres to 3.8 acres.
The Gurgaon Palwal Transmission Project (GPTL) not only addresses Haryana's peak energy demands, expected to surpass 12,000 MW in FY 20-21, but also aims to significantly reduce pollution levels by minimizing the use of over 10,000 diesel generators in Gurugram. Innovative solutions, such as multi circuit monopole towers and vertical GIS substations, optimize space usage and reduce land requirements by 75%, resulting in a substantial offset of over 18,000 tons of CO2 emissions annually. These advancements not only ensure reliable power supply but also contribute to cleaner air in the National Capital Region (NCR).