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Typical installed Home thermal solar system for family of 4 or larger.
Iowa- $6,000 installed - 30% federal rebate =
$ 4,200.00 total system cost.
Illinois $6,000.00 installed - 30% state rebate. = $ 4,200.00
plus 30% federal rebate of $4,200 = $ 2,940.00 total system cost.
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