Figure 06 shows a wind farm profitability-screening chart based on an initial cost of 1100 per kW capacity, cost of capital (discount rate) of 8%, a project life of 15 yr, and operating and maintenance costs of 3% of the initial project cost. 10 9.5 Deprod under anys per Iement 1100 EURONW.O. Profitability Index = NPVA Wind speed at HUD Hege 0.5+ 0.0 OVOD 0.045 0.050 0056 0900 0.065 0400 scop 0000 0.085 0.000 0.005 0.100 0105 0.110 0.115 0.1201 Average Selling Price ASP (EURON 1 EURO = 100 USE) Figure Q6 Annual distribution of wind speed at test site What is the profitability index (PD)? Discuss main factors in deciding the renewable power plant profitability performance. (ii) For a site with 8.5 m/sec wind speed at hub height, determine the average selling price if the Pl would be zero (the break-even point). (it) If the energy price were 0.08/2Wh and the wind speed at hub height is 8.5 m/sec, determine the PI value. The "full-converter permanent magnet synchronous generator based wind turbine" and "doubly-fed induction generator based wind turbine" are two categories of variable speed wind turbine. Compare and contrast these designs