Headquarters of the Presidency, Lehendakaritza (Vitoria-Gasteiz)

Geothermal exchange system for the climate control of the Presidential Headquarters, Lehendakaritza, located in Vitoria-Gasteiz. The system consists of a water-to-water heat pump for the production of heating and SHW at 60°C. Cooling is provided via rooftop condenser loop connected to VRV units.

Characteristics

• Category

  Renovation

• Promoter

  Basque Government (General Secretary of the Presidency)

• Geological material

  Marls and marly limestones

• Heated surface

  5.000 m²

• Thermal production

  Ground source heat pump
  Condensing boilers

• GIS Power

  Heating: 140 kW (40% of peak load)
  Passive cooling: 220 kW

• GIS Covered Demand

  Heating + SHW: 339 MWh/year (72%)
  Cooling: 14 MWh/year (14%)

• Geothermal exchange circuit

  2.700 m: 18 borehole x 150 m

• Distribution

  2 pipes

• Issuers

  Radiators, underfloor heating and fan coils

• Expected energy savings

  396 MWh PE/year (-42%)

• Commissioning

  July 2022