I live in Silicon Valley, I want to estimate good prices for 8007 KWhr per year usage to get close to 98-100% energy coverage. I am told because of East-West facing roof of cement tile, that I will need 26 panels of 250 watts each. Can someone give me estimates of price for installation of such a system? The PPA proposals I have seen are for no cost and price of $0.162 KW and yearly increase maxed out at 2.92%. Is this a reasonable alternative to buying? My big question is I don't know how long I will stay in the house.....maybe 4years....maybe 20years. Just don't have a good foercast of what I will do after I retire. Any advice would be appreciated.
ted
ted
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