State-owned NTPC is considering listing its green energy vertical in the next 1-2 years due to higher demand and a 30-40% rise in capex. The company is focusing on solar and hydrogen-based power, with a goal of achieving almost equivalent capacity between fossil and non-fossil fuels within the next 5-7 years. The company is working on coal-based verticals, more aggressively on solar, green, and new fuels like green hydrogen chemicals.