The project


The project
    The Høje Taastrup Community
    Key figures for Høje Taastrup Community
    The Kortrijk Community
    Key figures for Kortrijk Community
    The Birstonas Community
    Key figures for Birstonas Community


Project results

Pictures and videos

The Concerto initiative


Key figures Høje Taastrup Community

Her mangler en billedtekst

Inhabitants of municipality: 46,000 and inhabitants of ECO-Life community: 12,000 The main components in Høje Taastrup will be:

Renewable energy supply (RES)

  • 20-25,000 m2 new high-efficient solar thermal collector field possibly connected to the VEKS inter-municipal district heating transmission line - of this 3,000 m2 are dedicated to the project partly as solar collectors on buildings and in connection with the energy conversion central. Alternatively WTE / biogasification plant or other RES.

Group portrait in Hedeland, Denmark

  • 1 wind turbine
  • Approx. 18,000 m2 Photo Voltaic panels
  • Decentral heat pumps

Energy efficiency in buildings (RUE)

  • Participatory approach to involve and commit citizens.
  • 3 experimental flex houses for testing of new solutions to be rolled out in large scale.
  • 40 passive dwellings on 4573 m2 (as the beginning of a major passive house settlement).
  • 102 dwellings to be ECO-rehabilitated - a total of 10,800 m2.
  • 70 A+dwellings (better than Class 1 standard) are dedicated to the project - a total of 7,000 m2, to become the first of 2,500 new ECO-dwellings that will be constructed in the Vision area.
  • 8,000 m2 tertiary buildings to be built as low-energy buildings (school, institution and administration offices).
  • RUE in dwellings and tertiary buildings covering offices, schools and institutions obtained through yearly improvements and campaigns.
  • The buildings include extra insulation with focus on avoiding cold bridges, new types of low-energy windows, special emphasis on air tightening, demand controlled ventilation, heat recovery and metering etc.


  • 376 kW combined heat pump(s) and cooling plant combined with seasonal energy storage as a ground source TES system to show how the high temperature in the transmission line can operate thermal cycles enabling extra energy to be extracted from the surroundings used to produce low-temperature district heating. This will reduce grid losses; improve energy production capacity and increase (gear) the share of renewable energy in the DH supply, which is already based on a mixture of geothermal energy, biomass, energy from waste, and surplus heat from industries and CHP power plants. The CHP plants in the system are designed to operate with a large share of biomass as fuel.

Integration of RES and RUE

  • Extra RES covers need of the included ECO buildings after improving their energy efficiency by various RUE actions. The buildings will be supplied with RES dominated DH supply.
  • Improvement of efficiency of DH generation and supply (system layout, decentralized buffers).
  • Integrated use of a segmented underground seasonal energy storage.
  • Integration of SMART GRID solution e.g. for battery charging of electric cars. These stations will be controlled according to real-time fluctuations in production and demand on the power grid using ICT-based solutions, e.g. Power Line Control PLC or Internet Protocol.
  • Intelligent 2-way energy metering, information and control equipment.
  • Use of low-energy street lighting.

Specific innovations

  • "Whole Town Approach" - involvement of citizens' right from the start to influence the design of the city, including implementation and use of different RUE and RES solutions.
  • New types of user installations will be tested (first in the flex houses and then on a larger scale) e.g. a new type of DH units with primary side buffer tanks, enabling houses to be supplied with very small pipe dimensions with a constant tiny flow, leading to very low energy pipe losses avoiding daily fluctuations.
  • A new type of smart metering, control and information systems (further development of APTUS and/or Housekeeper units). Improved control and management of heating, ventilation, air conditioning, lighting, and other devices, as well as the use of new / intelligent lighting techniques.
  • Use of prefab TABS (Thermo Active Building Systems) in office buildings for base load climatisation and load shedding, night cooling and off-peak charging / supply.

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If you have any questions about our project, please contact:

Reto M. Hummelshøj
Project coordinator (DK)
E-mail: Reto M. Hummelshøj

Phone: +45 5640 2766

Ilse Piers
Local coordinator (BE)
E-mail: Ilse Piers

Jolanta Žaltkauskiene
Local coordinator (LT)
E-mail: Jolanta Žaltkauskiene


Høje Taastrup Community
Kortrijk Community
Birstonas Community