Solar Thermal Bar Chart Races

The 2023 Solar Heat Worldwide document will be posted soon.

Solar Heat Worldwide 2023

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Key Findings from Solar Heat Worldwide 2023

Leading the Way – Countries Driving Market Growth

Lebanon experienced a phenomenal 145% growth last year, driven by people switching to solar water heaters to save money as electricity and fuel prices rose and their currency depreciated.  Europe, Italy, Greece, and Poland recorded positive market developments for the second year.

Large-scale Solar Thermal Plants on the Rise

Demand for large-scale solar thermal plants predicted to grow in 2023, adding to the 571 plants (2.2 GWth capacity) operating today.

Decarbonizing the heat sector in neighborhoods and cities

325 solar district heating systems generate 1.8 GWth at costs between 20-50 €/MWh

Large and Small Solar Hot Water Systems Continue to Dominate the Market

115 million solar thermal systems in operation in 2021. Solar hot water systems for single and multi-family houses, tourism, and public buildings remain the dominant application, with an 85% share of the new installations in 2021.

Solar Heat Worldwide in Brief

Solar Heat Worldwide is published annually. Since 2005, countries, now 70, have provided data to create the most comprehensive evaluation of solar heating and cooling markets worldwide. Our flagship report is unique in its focused, in-depth look at solar thermal and is a reference source among international organizations, including the IEA, REN21, and International Renewable Energy Agency (IRENA). Solar Heat Worldwide was again the main contributor to the solar heating and cooling chapters of REN21’s Renewable 2022 Global Status Report, which is one of the primary policy adviser reports on renewables. Thank you to the lead authors, Werner Weiss and Monika Spörk-Dür from the Austrian research institute AEE INTEC and all the national contributors. This report truly is a work of international collaboration.