Billionaire businessman Gautam Adani on Tuesday announced that his conglomerate will be investing $20 billion during the course of the next 10 years in the renewable energy segment and will also produce the world's cheapest green electron. Mr Adani, who was addressing an investor summit, said that the investment will be made in renewable energy generation, component manufacturing as well as transmission and distribution. The Adani Group has been active in the renewable sector segment for many years now and interestingly the announcement about investing such a quantum of money in the sector has come just weeks after Reliance Industries Limited chairman Mukesh Ambani had said in June that he would be investing ₹ 75,000 crore over the next three years in clean energy and hydrogen fuel.