Competitive bidding in the renewable energy space has never failed to surprise. Solar tariffs had their share of excitement with falling tariffs, and now it is the turn of wind energy. The very recent wind energy auction by SECI, its second, saw tariffs of Rs.2.64 per kwh, much lower than the Rs.3.46 per kwh seen in the first auction in February 2017, which by itself was an incredulous figure.

There are reports that NLC India (formerly Neyveli Lignite Corporation) encountered similarly surprisingly low quotes for its solar energy cum battery storage projects. Mahindra Susten (the renewable energy arm of Mahindra & Mahindra Group) has emerged the L1 bidder with a quote of Rs.298.8 crore for a 20-mw solar power project equipped with a battery storage system. NLC India was expecting quotes upward of Rs.500 crore and there were five bidders (including Adani Group, Sterling and Wilson, etc) that quoted below this benchmark figure.