Energy Conservation Opportunities and its Techniques in Net Zero Energy Buildings Kambhampati Venkata Govardhan Rao, Thalanki Venkata Sai Kalyani, Tellapati Anuradha Devi, Malligunta Kiran Kumar, Kunduru Anusha and Thulasi Bikku E3S Web of Conf., 547 (2024) 03003 Published online: 09 July 2024 DOI: 10.1051/e3sconf/202454703003