Modeling of reliability of power supply systems with autonomous energy source M.S. Ershov, R.B. Jalilov, S.P. Shayimova, A.I. Choriyev and M.R. Charieva E3S Web Conf., 139 (2019) 01036 Published online: 16 December 2019 DOI: 10.1051/e3sconf/201913901036