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Ex. Solar Heating System Assume that a solar-powered home heating system can be built supplying all the heating requirements of a house for 20 years. If the original investment could earn 10%/year, compounded daily, and annual fuel savings could earn 8%/year, compounded daily, calculate the annual saving when the system is installed, where breakeven point is at the end of 20 years. (Initial cost : $8000, SV : $5000, annual fuel cost increment rate : 6%/year)