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U.S. Department of Energy
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Economy of a retrofit solar system

Technical Report ·
DOI:https://doi.org/10.2172/5228517· OSTI ID:5228517
A privately financed solar-augmented hot water system has been demonstrated to pay off in less than 10 years if a loan is obtained at 10.5% interest. Calculations were made on the assumption that electricity costs 5 cents per kWh and water consumption averages 30 gallons per day (using current technology on an existing dwelling in Tennessee).
Research Organization:
Oak Ridge Y-12 Plant, TN (USA)
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
5228517
Report Number(s):
Y-2098
Country of Publication:
United States
Language:
English