India is currently undergoing a massive transition towards clean and renewable energy. By 2047, the renewable energy capacity is likely to grow to 13 times the current, energy storage by 65 times, nuclear power by 8 times, power generation output by 4 times and an annual production capacity of 25 MMT of green hydrogen. These will require corresponding investments in electric and hydrogen grid infrastructure expansion. The challenge is not only implementation of these targets but also to do it in the most efficient and affordable manner.