TY JOUR TI STATUS AND FORECASTS OF USE OF ENERGY STORAGE SYSTEMS KW review KW energy storage systems KW renewable energy sources KW forecast JO Bulletin of the Angarsk State Technical University AU Konovalov, Y.V. AU Kalinin, E.A. PY 2025 IS 1 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»