Summary:

Solar power hot water heating systems are a highly cost-effective way to produce hot water for your house. They produce hot water in almost climatic conditions and the only fuel they use is sunlight which is available free of charge.

The total installed capacity of solar water heating systems as of 2007 is around 154 GW. China leads in the utilization of solar water heating systems with installed capacity of 70 GW as of 2006 and a plan to achieve 210 GW by 2020. Israel leads in the per capita usage of solar water heating systems with almost 90% of homes using this system. In the United States, Canada and Australia, solar water heating systems are largely used to heat swimming pools with the installed capacity of 18 GW as of 2005.

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