Renewable Energy (RE) tariffs continued to fall in 2017-18 as solar and wind tariffs hit historic lows of Rs.2.44/kWh and Rs.2.43/kWh respectively. Competitive bidding remained a major game changer responsible for this ongoing trend. Other key factors that drove the Indian RE market during this time included falling prices of solar panels, increased investments in RE vis-a-vis the conventional power sector, and the growth of grid-connected solar rooftop via the net metering route. In addition to accelerated RE market development, capacity addition from renewables exceeded that of conventional energy, for the second year in a row. All these major trends and developments are presented in Renewables India 2018, part of a series of reports that present an annual review of India's renewable energy sector.