Solar Thermal

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High Temperture Example: Building 209, EPA Lab, Edison NJ • Three closed loop systems with evacuated tube collectors, heat exchanger in the preheat tank. Food-grade Propylene Glycol solution for freeze protection. – Bay F 80 gallon preheat tank and 20 ft 2 of collector area. – Bay B 80 gallon preheat and 40 ft 2 of collector area – Bay D 120 gallon preheat tank and 90 ft 2 of collector area , measured output averaged 50,000 Btu/day in December, 98. • Total Cost=$26,000, 15 yr payback
High Temperature Example: Phoenix Federal Correctional Institution • 17,040 square feet of parabolic trough collectors • 23,000 gallon storage tank • Installed cost of $650,000 • Delivered 87.1% of the water heating load in 1999. • Saved $77,805 in 1999 Utility Costs. • Financed, Installed (1998) and Operated under Energy Savings Performance Contract with Industrial <strong>Solar</strong> Technology, Inc. • The prison pays IST for energy delivered by the solar system at a rate equal to 90% of the utility rate (10% guaranteed savings), over 20 years.
Page 1 and 2: Solar Water Heating Is Not New! •
Page 3 and 4: Solar Hot Water is Worth Investigat
Page 5 and 6: Technology Overview • Low-tempera
Page 7 and 8: Which collector is best depends on
Page 9 and 10: Low Temperture Example: Barnes Fiel
Page 11: Mid Temperature Example: USCG Kiai
Page 15 and 16: Industrial Process Heating Gould El
Page 17 and 18: Passive, Integral Collector Storage
Page 19 and 20: Active, Open-loop, Pumped Direct Sy
Page 21 and 22: Mazatlan, Mexico; El Cid Mega Resor
Page 23 and 24: Tempering Valve to Prevent Scalding
Page 25 and 26: Tribal Opportunities in the Solar W
Page 27 and 28: Procuring Solar Water Heating Syste
Page 29 and 30: Help in implementing your solar wat
Page 31: Worksheet Solar Thermal Opportunity

Solar Thermal

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