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Solar hot water

Solar hot water. Installed worldwide (2006): 108 GW, (70 GW in China); Growth rate: ~20% pa; Fraction of energy used for water heating (USA): ~14%.

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Solar hot water

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  1. Solar hot water Installed worldwide (2006): 108 GW, (70 GW in China); Growth rate: ~20% pa; Fraction of energy used for water heating (USA): ~14%

  2. The total market for glazed collectors in the 27 EU Member States and Switzerland decreased by 9% to 1,9 GWth of new capacity (2,7 million m2 of colector area). The total capacity in operation at the end of 2007 reached 154, GWth (22 million m2) The total market for glazed collectors in the 27 EU Member States and Switzerland decreased by 9% to 1,9 GWth of new capacity (2,7 million m2 of colector area). The total capacity in operation at the end of 2007 reached 154, GWth (22 million m2)

  3. Monthly averages of the Linke turbidity coefficient (TLK)

  4. Monthly averages of daily sum of clear-sky global irradiation (Ghc)

  5. Monthly averages of the clear-sky index (kc)

  6. September average Monthly averages of daily sum of global irradiation (Gh)

  7. Annual average

  8. x

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