Question: The array spacing is 5D by 10D, for 1 MW wind turbines, 60 m diameter. a. How many turbines can be placed in a

The array spacing is 5D by 10D, for 1 MW wind turbines, 60 m diameter. a. How many turbines can be placed in a square kilometer? b. Assuming the average wind power potential is 500 W/m2 at 50 m height and the capacity factor of 35%, estimate the annual energy production for each turbine and the designed wind farm. c. Calculate the cost of gearbox for each turbine if a medium speed generator is used. In what condition you can eliminate that cost?

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