Hamburg, GermanyThe City of HamburgHamburg is the second-largest city in Germany after Berlin and 7th largest city in the European Union with a population of over 1.84 million. The city lies on the River Elbe and the metropolitan area is home to over 5 million people. In addition to being Europe’s third-largest port, Hamburg is a major science, research, and education hub The DemonstratorThe German demonstrator operated by Wärme Hamburg GmbH consists of a completely new district, comprising 2000 newly-built apartments and numerous tertiary sector buildings (a hotel, a school, a shopping area, gastronomy, medical practices and offices). The newly built DHC network consists of a low-temperature network that exploits energy from underground water, as well as excess heat from space cooling. Energy loads will be balanced using a seasonal geothermal energy storage, combined with centralised heat pumps, and backed up by a connection to the existing district heating network. The demonstrator aims to achieve the following objectives:
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