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Participating countries

Austria, Canada, France, Italy, the Netherlands, Norway, Switzerland, USA

Thermally Driven Heat Pumps for Heating and Cooling

The goal of Annex 34 was to reduce the environmental impact of heating and cooling by the use of thermally driven heat pumps. It was based on the results from Annex 24, ”Absorption Machines for Heating and Cooling in Future Energy Systems”, and cooperated with the IEA-SHC task 38, “Solar Air-Conditioning and Refrigeration”.


One of the main objectives was to quantify the economic, environmental and energy performance of integrated thermally driven heat pumps in cooling and heating systems in a range of climates, countries and applications. From this, those areas and applications with the greatest environmental benefit, the best economics and the greatest market potential were identified.