S&P Global Ratings revised the outlook to positive from stable and affirmed its 'A+' long-term rating on Indianapolis ' thermal energy system (doing business as Citizens Energy Group ) debt outstanding. At the same time, S&P Global Ratings assigned its 'A+' long-term rating to the thermal energy system's approximately $63 million series 2025A first-lien utility revenue bonds, issued by the Indiana Finance Authority . The outlook revision reflects healthy fixed-cost coverage (FCC) and liquidity in fiscal 2024 and our expectation that FCC will materially improve in the next several years as debt service declines. Net revenue of the thermal energy system secures the debt. It will use bond proceeds for system improvements and current refunding of the series 2013A and