New Delhi, Feb. 14 -- In what will rank among the largest green energy tenders in the country, the Indian Railways plans to invite bids for 3 gigawatt (GW) renewable energy projects worth Rs.18,000 crore in the next fiscal, according to two government officials aware of the development. The move is a part of the behemoth's playbook to become a net zero carbon emitter by 2030 while also significantly slashing its fuel costs. According to the officials, the carbon footprint reduction plan will help the national carrier save around Rs.1 trillion in energy costs by 2030. These projects, to be set up on railways' land, rooftops of 8,000 railway stations and along rail tracks, will be bid out by Railway Energy Management Co Ltd (REMCL), a joint v...