Exhibit 99.1 ReNew Announces Results for the Third Quarter (Q3 FY23) and Nine Months of Fiscal 2023, both ended December 31, 2022 February 16, 2023: ReNew Energy Global Plc (“ReNew” or “the Company”) (Nasdaq: RNW, RNWWW), a leading decarbonisation solutions company, today announced its consolidated results for Q3 FY23 and nine months ended December 31,2022. Operating Highlights: • As of December 31, 2022, the Company’s portfolio consisted of 13.4 GWs, a 30.2% increase year on year, of which 7.8 GWs are comm ...