5,256,000 kWh.
1. If we assume that the hydroelectric plant operates all year round, then the number of hours in a year is 8,760 hours. Currently, we can calculate electricity production = 600 kW × 8,760 h = 5,256,000 kilowatt hours (kWh).
2. However, in real situations, the operating time of hydropower plants will be affected by factors such as maintenance and seasonal water level changes, so the actual electricity generation will be different.