You are to size a grid-connected south-facing pv system for, Ask an Expert

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You are to size a grid-connected south-facing PV system for Las Vegas to deliver 4000 kWh/yr. Use a tilt equal to latitude minus 15°.

a. What should be the ac-rated power of the PV/inverter system?

b. What temperature derating should you use if the modules have an NOCT of 45° C, the maximum power drops by 0.36%/° C, and for ambient the average annual daily high given in Appendix E is appropriate.

c. For 3% dirt, 3% mismatched modules, and a 92% efficient inverter, what should the DC, STC rated power of the modules?

d. If the modules are 13% efficient, what area of PVs would be required?

e. If the installed system cost is $6 per dc, STC W, what is the total cost of the system?

f. Suppose the system is paid for with a 6%, 30-year loan with interest being tax deductible, The customer is married and has a taxable income around $200,000/yr, which puts them in the 35.5% marginal tax bracket. Nevada has no state income tax. There is a renewable energy credit (Green Tag program) that will pay the owner 5¢/kWh generated. What would be the first year cost of PV electricity for this customer (¢/kWh)?

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Electrical & Electronics, Engineering

Category:- Electrical & Electronics
Reference No.:- M92060105

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