Heat and Cold Storage (ATES)

TU/e has a Heat and Cold Storage (ATES) installation which is one of the biggest of its kind in Europe. The ATES has been executed with two central rings; a cold ring and a hot ring. Buildings can independently use heat and cold simultaneously, while heat and cold can be exchanged on the rings. This is a unique feature of the installation at TU/e. A total of 70% of the built-up area of TU/e (19 buildings) is connected with the ATES. 

The buildings forming part of the Campus 2020 projects are fully heated by means of the ATES in combination with a heat pump and low-temperature heating (in these buildings no natural gas is used for the heating). Likewise, the cooling of the buildings (high-temperature cooling) is realized by the ATES. In addition, the decentralized spaces where individual installations are used are fitted with presence detection and window contacts that can switch off the climate installation (induction ceiling) when the windows are opened.

To give you an idea of the size of the ATES installation, we mention some characteristic features of the Aquifer Thermal Energy Storage:

  • current number of sources: 32, to be extended to 48 (3x8 cold + 3x8 hot)
  • current source water flow: 2000 m³/h, to be extended to 3000 m³/h
  • design cooling capacity (in case of 3000m³): 25MW

By storing heat and cold in the soil, TU/e annually saves some three million KWh on electricity and more than 450,000 m³ on gas.

Watch the film about the ATES installation of TU/e.