solar power rebates arizona

How much did your solar water heater for you? 10 pts.?
I live in Phoenix, Arizona and say that a typical installation costs $ 5000. But with the power company incentives in 1300, the state rebate of 25% and 30% federal discount that would ultimately cost about $ 1600. I was wondering if these numbers are accurate. Were there any hidden additional costs? About how much did you save a month / year? Give me all the details that can please and get 10 points. I am with the power of SRP helps.Thanks
Phoenix is well worth it and it sounds cheap in many places costwise benefits are questionable if you make large solar panels on your roof to get free hot water and a cooler house because the roof is really cold water and saves money on A / C
Arizona solar power Exhibit & Conference in Phoenix, Arizona