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Swiss Institut for Solar Technology

Switzerland: The Advantages of Solar Thermal and Heat Pump Combinations

Submitted by Baerbel Epp on December 17, 2013

Combining a heat pump and a solar thermal system increases overall system efficiency and substantially reduces the heat pump’s electricity consumption. The various possibilities of using both technologies together were illustrated by Dr Michel Haller’s presentation entitled "Solar and Heat Pump Systems - A Question of Technology?" and held at the SHC conference in Freiburg (see attached document). Haller is project leader at the Swiss Institute for Solar Technology, SPF, in Rapperswil. The ideal combination depends on the type of application, the type of collector and the local climate conditions. The figure above shows a common parallel configuration.
Figure: SPF Rapperswil

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