ZE Downsize Calculator
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ZE Downsize Calculator developed by Bruce Sullivan with Zero Energy Project www.zeroenergyproject.org Sept 2018
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Downsizing to pay for total zero energy cost
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Use this calculator to see how reducing house size can pay for energy improvements in new construciton.
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Enter your assumptions in the green cells.Instructions:
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Conventional Construction Cost
180000
Enter the cost of the conventional house you would build.
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Size (square feet)1100
Enter the size of the conventional house you would build.
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Zero Energy Package Cost40000Enter the estimated cost of energy improvements, Take it all the way to zero energy! If you don't have an idea of what zero energy might cost, you can start by using 5% if you are eligible for significant incentives and 10% to estimate your project without incentives. For the construction cost you've entered in cell B4, this would be:
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With incentives 5% =\$9,000
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See the answer here:
Without incentives 10% =\$18,000
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Size of ZE house for same price
900
The calculator shows you the size to the nearest 100 square feet.
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Price of ZE house 180000
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Conventional Cost per SF164
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ZE Cost per SF200
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