Down payment = 15%
Ratio of first-year miscellaneous costs to the initial investment, M1 = 0.01.
Ratio of assessed value of the system in the first year to the initial investment, Vi = 1
Ratio of resale value = 0.4.
Property tax, tp = 2%.
Effective income tax,te = 40%.
In addition,the solar fraction to the collector area varies as follows. Determine the optimum collector area that maximizes the LCS and the LCS