Heat pump have always been identified with air conditioning systems that provide cooling in summer and warm in winter at a very high cost. However the extraordinary advances in aerothermal technology have provided stationary yields above 10 (producing 10kW cooling with 1kW of electricity consumption).
According to Carlos Gómez Cano, CEO of Toshiba Heating and Air Conditioning an aerothermal system saves 60% compared to a diesel boiler and 40% compared to a natural gas boiler. And while combustion boilers have already reached almost the limit of technical improvements, heat pumps still have a long haul to improve their performance.
Heat pumps and aerothermal as a whole are considered renewable energies because they are able to extract energy from the air and transfer it to another place in the form of cold or heat. It is obvious that power is required for the operation of a heat pump, and its generation may be related to CO2 emissions.
“Ideally, the facility should be supported by photovoltaic generation,” notes Gomez Cano
However, CO2 emissions from the Spanish energy mix are around 100gr. of CO2 per kW produced, compared with 204gr. CO2 emitted by natural gas per thermal kW generated and more than 280gr. CO2 of gas oils. It should be noted that the mix of electricity generation in our country is free of CO2 by approximately 60%.
Not only air
Aerothermal systems are not only cooling system using hot or cold air, but they can supply hot water and heating in winter and cold water for distribution in the summer. In essence, the aerothermal or heat pump is a domestic renewable energy generator that uses heat from the air to produce 70% of the energy needed to provide heating (from -25 ° C) or cooling (up to 46 ° C). In addition, the new generation of aerothermal equipment also allows heating water, so it is now a real alternative to replace oil and natural gas boilers and bring about a revolution capable of producing a change in the energy needs of the Spanish economy.
Toshiba says that although the initial investment in an aerothermal system is significantly higher than that of a combustion boiler, both the low maintenance (cleaning the filter from time to time) as the power savings and performance make the installation is written off in a short time.
For Gómez Cano, on recalling that in 2070 full decarbonization should be reached, aerothermal will be the only air conditioning system in the coming years.