Tabulate the annual cash flows of a solar energy system that has an initial cost of $7000 for a 12-year analysis, where the following economic parameters apply; Down payment = 20% Interest rate = 9% First year fuel saving = $ 1250 Market discount rate = 8% Maintenance and parasitic cost = 0.5% increasing at 1% per year Resale value = 25% Also estimate the life cycle savings and the return on investment, using the P_1, P_2 method