CPPIB invests $247 million in ReNew to support the acquisition. : ReNew Power became the largest renewable energy company in India after it acquired Ostro Energy on Monday. The deal size is estimated to be $1.55 billion (Rs 100 billion), the biggest deal in the renewable energy sector. The deal is funded in a 60:40 equity-debt ratio with the company open to debt refinancing later, according to persons close to the development. Canada Pension Plan Investment Board (CPPIB) had pumped in $247 million to assist ReNew in finalising the deal, the company said.