Investment giants BlackRock and Mubadala agreed to pay $525m for a stake to help propel Tata Power Renewables, the green energy unit of Indian conglomerate Tata, into the clean power big-league.

BlackRock Real Assets, a unit of the world’s largest asset manager, and Abu Dhabi sovereign investor Mubadala, already a major presence in global clean energy via Masdar and other interests, will hold 10.53%