RusHydro started designing Tolmachevskaya HPP-4, which is to become the final stage of a cascade of hydroelectric power plants on the Tolmacheva River in the Ust-Bolsheretsky District of the Kamchatka Territory. Design work is planned to be completed by the end of 2025. According to preliminary design studies and feasibility calculations, the capacity of the plant will be 6 MW, and it will be able to generate 41.55 million kWh of environmentally clean, renewable electricity per year.