Page number 48.
p.48
"Our focus is on reducing the consumption of major raw materials like Steel, Aluminum etc., through efficient designs. Accordingly, the specific consumption of these raw materials have been reduced over the years through technological innovation using high capacity transmission lines i.e. 765 kV, ±800 HVDC for transmitting bulk power.The scrap is recycled again to reproduce finished products which may be reused in our tower parts/equipment."