India saved over $100 billion in coal and gas imports through renewable energy between 2011 and 2025, says IEA. Cumulative savings could reach $240 billion by 2030 as capacity expands. Mumbai: India's rapid expansion in renewable energy has helped the country save more than $100 billion (approximately ₹9.4 lakh crore) in coal and natural gas import costs between 2011 and 2025, according to the International Energy Agency (IEA).