During the auction, there was a considerable variation in prices, particularly for the EPC component – ranging from INR 1.79 billion ($28 million) for Mahindra Susten to INR 3.42 billion ($53 million) for Hero – suggesting an inconsistent understanding of the technical specification. Mahindra Susten has won an auction for a 20 MW solar project integrated with 10 MW of battery storage capacity on India 's Andaman and Burma Islands , the first large - scale solar project in India . Mahindra won with a bid of INR2.99bn ( $ 46 million ) . The islands have a population of 400,000 and peak power demand of 67 MW , usually covered by diesel gensets .
Mahindra Susten has won an auction for a 20 MW solar project integrated with 10 MW of battery storage capacity on India 's Andaman and Burma Islands , the first large - scale solar project in India . Mahindra won with a bid of INR2.99bn ( $ 46 million ) . The islands have a population of 400,000 and peak power demand of 67 MW , usually covered by diesel gensets .