in 2006.

Asia

After 1960, systems were marketed in Japan.

Australia has a variety of national and state and regulations for solar thermal starting with MRET in 1997.

Solar water heating systems are popular in China, where basic models start at around 1,500 yuan (US$235), around 80% less than in Western countries for a given collector size. At least 30 million Chinese households have one. The popularity is due to efficient evacuated tubes that allow the heaters to function even

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