Transition of Uzbekistan to renewable energy sources: Challenges and prospects Temur Shaydanov, Guzal Abirova, Nelya Engalicheva, Ulugbek Aliev and Anora Gulyamova E3S Web of Conf., 405 (2023) 02018 Published online: 26 July 2023 DOI: 10.1051/e3sconf/202340502018