Basque National Orchestra in Miramon (Donostia/San Sebastián)

Vertical closed-loop geothermal exchange system that supplies renewable thermal energy to a ground source heat pump. The system is complemented by an air source heat pump as auxiliary support.

Characteristics

• Category

  Renovation

• Promoter

  Euskadiko Orkestra, S.A.

• Geological material

  Marls and sandy limestones

• Heated surface

  2.800 m²

• Thermal production

  Ground source heat pump
  Air source heat pump as backup

• GIS Power

  Heating: 116 kW (41% of peak load)
  Cooling: 90 kW (53% of peak load)

• GIS Covered Demand

  Heating: 126 MWh/year (75%)
  Cooling: 73 MWh/year (89%)

• Geothermal exchange circuit

  1.650 m: 11 borehole x 150 m

• Distribution

  2 pipes

• Issuers

  Fan coil units

• Expected energy savings

  187 MWh PE/year (-52%)

• Commissioning

  January 2025