Solar Thermal Bar Chart Races

Key Findings from Solar Heat Worldwide 2025


Solar heat on the global scale


Solar heat markets on the rise


5 top markets - total installations


5 top markets - new installations


World's largest solar heat plants


336 towns and cities use solar district heating


Highlights of SHIP market 2023


Eight different collector technologies for various heat needs

Solar Heat Worldwide 

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In Brief

Solar Heat Worldwide is published annually. Since 2005, countries, now 72, have provided data to create the most comprehensive assessment of solar heating and cooling markets worldwide.

Our flagship report stands out for its detailed analysis of solar thermal technologies and serves as a reference source among international organizations, including the IEA, REN21, and IRENA.