1. Active Solar Water Heating Alyssa D’Addezio and Nicole Ramsey

2. Goal of Technology  Efficiently heat water in homes  Renewable technology  Cost effective heating systems  Saves energy during summertime http://img.en.china.cn/0/0,0,271,17894,695,600,129c3ecc.jpg

3. Technology Potential  Reduction of air pollution  Decreased emission of greenhouse gases  Generates electricity http://wheresmyamerica.files.wordpress.com/2007/08/smoke-stack1.jpg

4. Operations  Flat-Plate Collector weatherproof boxes with dark absorber plate to collect sunlight  Integral Collector-Storage Systems uses tubes and tanks to take warm water heated by flat plate collector to conventional back-up water heater  Evacuated-Tube Solar Collectors glass tubes that inhibit radiative heat loss http://www.flasolar.com/active_dhw.htm

5. Technological Obstacles  Needs warm climate with large amounts of sun and rarely freezes  No sunlight = No warm water  Solar plates are expensive and fragile

6. Political and Economic Obstacles  Expensive installment and repairs throughout the entire system  Government regulation and neighborhood covenants

7. Environmental Impacts  No negative environmental impacts The solar water heating for the home drastically reduces a family’s utility bills and environmental impact. During the winter, the solar heater eliminates the air pollution created by using traditional heating systems. http://fennerschool.anu.edu.au/studying/postgrad/environment/fenner_ clouds.jpg

8. Bibliography http://www.flasolar.com/active_dhw.htm http://www1.eere.energy.gov/solar/sh_basics_water.html http://www.energysavers.gov/your_home/water_heating/index.cf m/mytopic=12850