Get latest articles and stories on Business at LatestLY. According to Fitch's report, the rating on the notes reflects the 'bb' credit assessment of a restricted group of operating entities under ReNew Power Private Limited (BB-/Stable) - one of the largest renewable-energy independent power producers in India - notched down because of the orphan issuance structure. Business News | India's Green Energy Sector Receives Strong 'BB-' Credit Rating: Fitch.