Current aerothermal equipment provides energy efficiency to our homes. The high energy yields in cold and heat imply significant reductions in CO2 compared to other conventional systems.
The aerothermal system provides us with the hot water necessary for consumption (ACS) and at the same time, generates cold and heat for our interior equipment, whether they are fan coils, low-temperature radiators or underfloor heating. The system only needs electricity, therefore, the contracting of natural gas is not necessary. Below is a diagram of the principle of a typical installation with the equipment located outside, the interior equipment, the distribution in the ACS and the climate based on two fan coils:
In the Granollers block promoted by Granollers TTASL Promotora Inmobiliaria, a Panasonic unit was designed with its model Aquarea All in One Compact with built-in ventilation PAW-A2W-VENTA. The installation is connected to the Aquarea Smart Cloud system, which allows us to visualize and control the operation of the installation.
The integration of ventilation allows us to maintain a healthy air quality, since it renews the interior air stale with filtered air from the outside. The heat recuperator, having an efficiency of 83%, implies that the energy losses in the renovation of the interior air are small. It is important that the regulation of the fan is as optimal as possible in order to reduce these forced energy losses as much as possible.
At PACI Global we bet on conventional installations for aerothermal equipment with heat recuperators and photovoltaic panels. The system we propose is currently the system with the least environmental impact and the one with the lowest long-term economic costs. To corroborate this, we have developed a study of different conventional and current technologies in order to define the best system in environmental and economic terms. The results of the CO2 emissions of different systems are detailed for each dwelling in a block of flats:
As we can see, the emissions of the last three systems based on aerothermal equipment, the CO2 emissions decrease considerably. The latest system based on aerothermal energy with heat recovery and photovoltaic plate, is the one with the lowest emissions, emitting only 12.31% compared to a current conventional system. The contribution of the photovoltaic panel has been accounted for with 500W simulating one panel per home since the real space on the roof is usually precarious. If there is enough space on the roof, the solar contribution can be higher, and therefore further optimize the reduction of emissions from the system.
On an economic level, despite having a higher initial financial investment, if we take into account the 25-year invoice costs, surface cost and maintenance, aerothermal energy is 12% cheaper than the conventional system.
With the help of the Next Generation, we have a very good opportunity to improve and renew the current real estate park, both in energy rehabilitation and in technological innovation and efficient installations, let’s take advantage of it and let’s not let it escape!