India needs $540 billion of investment between 2020 and 2029 to meet its ambitious targets for electricity generation from renewable sources, S&P Global Ratings said on Thursday as it saw private-sector-led energy transition entering a new phase. India is targeting to cut its emissions to net zero by 2070. In the transition to that, it is targeting 500 gigawatts (GW) of non-fossil electricity capacity, half of the energy from renewables, a reduction of emissions by one billion tonne and an emissions intensity of the GDP by 45 per cent by 2030.