TY JOUR TI Economic aspects of the provision of adequacy in planning the development of energy systems in modern conditions KW adequacy KW regulatory indicator KW power balance KW power demand KW specific damage KW costs JO Proceedings of the Komi Science Centre of the Ural Division of the Russian Academy of Sciences AU Chukreev, Y.Y. AU Chukreev, M.Y. PY 2026 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"