A WS hydroelectric system is installed in the pathway of a small river with current speed of 5 m/s. The diameter of the swept area of the turbine is 1.2 m. Assume that the coefficient of performance...

A WS hydroelectric system is installed in the pathway of a small river with current speed of 5 m/s. The diameter of the swept area of the turbine is 1.2 m. Assume that the coefficient of performance is 30%, the turbine efficiency is 90%, and the efficiency of the generator is 90%. Compute the output power of the plant and the energy generated in 1 year. If the price of the energy is $0.1/kWh, compute the income from this small hydroelectric plant in 1 year.