3. (20%) A certain wind turbine is rated at 5 MW and has an installed cost of $6,000,000. The capacity factor is 0.38. The turbine is paid for with a down payment of 1/ 10 of the installed cost and a loan. The loan interest rate, b, is 8% and the period of the loan, N, is 15 years. The economic lifetime of the turbine, L, is to be 20 years, the inflation rate is 4% and the discount rate, r, is 5 %. The O&M cost is 1% of the initial cost each year, increasing at the inflation rate $0.10/kWh? 2) Find i) the net present value of all the costs, in S, and ii) the levelized cost of producing the energy, S per kWh