Solar Heat Worldwide, Edition 2022

The Solar Heat Worldwide report is giving an overview of the general trends, highlight special applications and outstanding projects, document the solar thermal capacity installed in the important markets worldwide, and ascertain the contribution of solar thermal systems to the supply of energy and the CO2 emissions avoided as a result of operating these systems.

This report is split into three parts. The first part (Chapters 3 - 4) gives an overview of the global solar thermal market development in 2021. In addition, general trends are described and detailed 2021 data on successful applications, such as solar assisted district heating, solar heat for industrial processes and hybrid photovoltaic thermal systems, are documented.

The second part (Chapters 5 - 7) presents detailed market figures for 2020 from the 70 surveyed countries. In addition to the data from 68 countries documented in previous years, data from Bhutan and Kenya are new additions to this year’s report. These chapters include the installed collector area, the distribution of the collectors across various systems and applications and the solar yields and avoided emissions.

The third part (chapter 8) documents the methodological approach, reference systems, climate and population data, literature references and data sources.