Structure, condition, and prospects of electrical grids in the Republic of Sakha (Yakutia)N. S. Volotkovskaya, N. N. Kugusheva, A. S. Semenov, I. A. Yakushev, S. N. Pavlova and O. V. KolosovaE3S Web Conf., 124 (2019) 04001DOI: https://doi.org/10.1051/e3sconf/201912404001