Sustainable Approach for Conversion of Building to ‘Zero Energy Building’ Shruti S. Wadalkar, Vanishri A. Patil, Deepa A. Joshi, Radhika Menon and Pratiksha Sonawane E3S Web Conf., 455 (2023) 03017 Published online: 05 December 2023 DOI: 10.1051/e3sconf/202345503017