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Global solar water heating capacity 2009-2019

This statistic portrays the installed capacity of solar water heating (SWH) systems worldwide from 2009 to 2019. Solar collectors, typically found on a structures roof, are used to convert the suns energy into heat which is then used for heating water. Up until 2018, the installed capacity increased annually, rising from 203 to 482 gigawatts thermal. However, 2019 experienced a decrease with the global solar water heating (SWH) capacity dropping to 479 gigawatts thermal. China is the world's biggest solar water heating market.

Capacity of solar water heating (SWH) systems worldwide from 2009 to 2019*

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Release date

June 2020



Survey time period

2009 to 2019

Supplementary notes

* Data are for glazed and unglazed solar water collectors and do not include concentrating, air or hybrid collectors

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Statistics on "Solar energy industry worldwide"

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