Hamburg, Germany

The City of Hamburg

Hamburg 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 Demonstrator

The 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:

  • Installation of the seasonal thermal energy storage system
  • Utilisation of PV panels to cover heat pump electricity consumption, combined with smart control strategies
  • A turnkey solution for an “Energy Centre” including centralised heat pumps and the integration of advanced controllers to maximise the consumption of PV-generated electricity. The centre will be energy autonomous.