Free cooling consists in using the outside air cooling capacity to renew and cool the inside air of a room, reducing the energy consumption of the cooling equipment. As consequence, the system only switches on extraction and air conditioning fans, avoiding starting up the compressor of the cooling equipment.
The energy consumption reduction potential is medium. With this measure, it is estimated that the achieved savings in the total energy consumption can be up to 18%
Reduction in energy dissipation
Effectiveness linked to environmental conditions (the determination of the dissipation depends entirely on environmental characteristics)
Initial investment: low. In some cases the cost of this measure will be zero, if a ventilation system coupled to the installation of air conditioning is already available.