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supported by | | Ground broken for Germany's biggest GSHP projectMar. 21, 2007 - On 7 March 2007 work began on a large housing estate nearby Cologne to be heated by ground source heat pumps (GSHP). The estate is to comprise 383 single-family homes and apartments for a further 1,000 people when completed. 21 boreholes are drilled up to 100 metres into the soil and fluid is circulated through pipes to extract the soil heat, which is constant from summer through winter. GAG, the publicly owned company building the 65-million-Euro estate on former factory land said residents would be able to halve their heating bills. | |
