India has ambitious renewable energy targets of 175GW by 2022. In order to meet this target, the renewable energy sector in India will require $189 billion in additional investment, including $57 billion in equity, and $132 billion in debt. The potential amount of investment in the renewable energy sector in India is more than double the investment required. However, the amount of investment expected falls short of the investment required, by 29% for equity and 27% for debt. Institutional investors show significant potential to help fill this financing gap. This study examines institutional investors and their investment potential, expected investments, barriers to investment, and financial instruments and policy solutions which can address these barriers to scale up the investment needed to meet the renewable energy targets.