In a house is planned to be built a wind turbine. The wind turbine will be designed using a 300 W DC generator, and aims to produce 60 kWh in 30 days.

a)What is the required capacity factor for the machine?

b)If the average wind speed is 5 m/s, and Rayleigh Statistics apply, what rotor diameter is required to meet the desired design specifications?

c)What wind speed is required for the turbine to produce maximum power? Assume the system efficiency is 27.5%.

d)If the turbine is assumed to have a tip-speed-ratio of 4, what is the wind turbine rotor speed?