Submitted by: Gemeinnützige Salzburger Wohnbauges.m.b.H.
Implemented country: Austria
Title: Solar heat pump
Solar thermal systems are now commonly designed to be a "solar fraction" from 15-20% for space heating and water heating can be achieved, ie 15-20% of energy for heating and hot water are free from the sun.
An increase in the coverage ratio is technically possible, but is associated with a relatively high cost. In order to cover about a third of the energy needs of the solar system may have collector areas and storage tanks are sized at least twice as large. This usually fails to fit the available space and also to the costs.
With the integration of a "solar heat pump" is the new GSWB a way with which to be possible at relatively low additional cost of a significant increase in the solar performance.