Assume total system cost is $2.8/W and it is financed by 50% upfront cash and 50% loan with 4% interest and loan period of 15 years. Assume annual O&M costs are about $0.0078/W, assume an inverter replacement in year 12 for $2,100, salvage value of $1,600 at the end of life and a tilt angle of 34. Assume 25 years of lifetime. Assume owner has a discount value of 6% and inflation is 2%. What is the LCOE for this system? (Note: NPV = 0. Use cash flow calculations) What is the NPV of the project if electricity cost of $0.10/kWh? Show your calculations. How can we improve the NPV?