WIND FARM PLANNING: For a 200 MW installed capacity wind farm planning in Northwest of Texas where 15 m/s ave wind speed is available; complete the following feasibility studies/calculations. Given: Available U.S. made 1.5 MW GE XLE HAWT Wind Turbines (you are obligated to use "Made in USA" wind Turbines to be eligible for federal incentives); each 1.5 MW XLE cost $2,000,000 ($2 Millions) as wind turbine purchase price. According to following cost of a typical wind power farm; 64% of the total cost is the price of wind turbine. The rest 36% must be added as the other cost (grid connection-planning-foundation-construction-transmission). Wind Variability factor is 0.31 in the field selected optimally. Therefore one wind turbine cost is $2M and an additional $1.06 M must be added for the operation and construction cost (grid connection-planning-foundation-construction-transmission). That means, one 1.5 MW GE XLE turbine total cost installed and ready to be operated is in fact: $2.0 M+$1.125M = $ 3.125M Calculate:

(a)How many wind turbines needed for 200 MW total installed capacity wind farm? (must be an integer number): (b)Total Cost for wind farm (including 36% grid-planning-foundation-construction-transmission cost) (that means $1.125 M for each turbine) to be added as the other cost: (c)Annual Power Output of one wind turbine? Use 1500 kW X 8760 hr X 0.31 to obtain annual kWh electricity production from one turbine: (d)Multiply (c) by total number of turbines: (e)Using the energy price of $0.10/kWh, calculate total electrical sales income: $ = $/kWh * Grand Total of Annual kWh Income from (d) (f)Subtract about 20% from (e) for annual operation/deprecation cost and employee salaries: Write the $ balance after subtracting 20% from (e): (g)Calculate Payback for the entire project in years: [The $ amount in (b)] /[The $ amount (f) ] in years:

(h)If GE offers 20 years of maintenance warranty for major breakdowns, discuss if this 200 MW wind farm is a feasible economical investment not including all other very positive environmental savings (other than some bird chops) and reductions in CO2 emissions.