Replace components such as runners with high-efficiency alternatives and optimize the stator and rotor windings of the generator to enhance unit efficiency, capacity, and output stability.

Retrofit the automatic control system in line with the principle of “unattended operations with minimal on-site staffing” and upgrade it to a microcomputer-based monitoring system. Configure advanced primary and secondary electrical systems, including monitoring, protection, and communication systems, to enable remote start/stop, load regulation, and early fault warning.

Retrofit cooling, lubrication, and speed control systems, and replace aging valves, pipelines, and water pumps to ensure the reliability of unit operation. Upgrade the excitation system to improve power quality.

Address the problem of reduced or dewatered river reaches downstream of dams by installing ecological flow release devices and implementing intelligent scheduling strategies so as to improve the effectiveness of ecological flow discharge and fulfill environmental protection requirements.

Through comprehensive measures such as unit efficiency improvement, intelligent transformation, and ecological restoration, the retrofit program aims to transform the facility into a modern, green hydropower plant that carries out intelligent O&M, maintains standardized safe production, and implements routine ecological flow monitoring.