Features of optimization of increasing the efficiency of an autonomous photo thermal installation for rural regionsR. Muminov, M. Tursunov, I. Yuldoshev, H. Sabirov, U. Kholov and T. AkhtamovE3S Web of Conf., 216 (2020) 01146DOI: https://doi.org/10.1051/e3sconf/202021601146