Harnessing the Sun's Energy for Water and Space Heating

Installation of rooftop solar water heaters is increasing worldwide, according to the Earth Policy Institute.



rooftop solar
Solar rooftop thermal collectors are gaining popularity around the world as a convenient and inexpensive way to heat both water and space.
PHOTO:ALEKSANDER BOLBOT/FOTOLIA.COM
rooftop chart 1
Cumulative solar water and space heating installations in top 10 countries, 2009.
Source: EPI from REN21,IEA-SHC
rooftop chart2
Annual solar water and space heating installations in the United States, 2000-2010.
Source: SEIA, GTM Research
rooftop chart3
Solar water and space heating area per person in top 25 countries, 2009.
Source: Earth Policy Institute











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