The homes of the future are already here, and are built on a very clear foundation: energy efficiency, sustainability, and savings. One of the most prominent players in this new energy model is the aerothermal, a technology that combines perfectly with other renewable energies such as solar photovoltaic. You can also learn more about the impact of these energies on the environmental impact of solar panels.
But beyond the savings on your electricity bill, installing an aerothermal system at home has a direct consequence: improves the energy certificate rating, an essential document for selling, renting, or renovating a home. Want to know how aerothermal energy can help you achieve a more sustainable home? We'll tell you everything here.
What is an energy certificate and why is it mandatory?
The energy certificate It is a legal document in Spain since 2013 that classifies the energy efficiency of a property using a letter scale ranging from A (maximum efficiency) to G (minimum efficiency). This rating is based on heating, cooling, and domestic hot water consumption, as well as the CO2 emissions generated by these consumptions.
To obtain this certificate, an authorized technician must visit the home and collect all necessary information, such as the type of insulation, HVAC system, orientation, and construction materials. The certificate is valid for 10 years except in cases with a G rating, where its validity is reduced to five years. In this context, it is vital to consider the use of natural thermal insulators to achieve a better grade.
This document is essential in any property purchase or rental process, and its rating can directly influence the property's value, its attractiveness to buyers, and access to subsidies and tax deductions.
What is aerothermal energy and how does it work?
La aerothermal It is a technology that uses the heat from the outside air to produce Heating in winter, cooling in summer and hot water all year roundAll of this is done through a heat pump that, thanks to thermal exchange, is capable of moving heat from one room to another.
This system consists of three main elements:
- Outdoor unit, which captures energy from the air.
- Indoor unit or heat pump, which raises the temperature and transfers it to the system.
- distribution systems: underfloor heating, low-temperature radiators or fan coils.
In summer, the process is reversed, functioning as an efficient air conditioner. Furthermore, there is no combustion, eliminating any risk of harmful emissions, as is the case with gas or diesel boilers. For more information on the installation and operation of aerothermal energy, visit the guide to aerothermal energy.
Advantages of aerothermal energy for the energy certificate
Install an aerothermal system can significantly improve the energy rating of a homeThis has very positive consequences from an economic, environmental, and regulatory perspective.
Why? Because aerothermal energy achieves efficiency ratios far superior to most traditional systems. For every 1 kWh of electricity consumed, it generates between 3 and 4 kWh of useful energy (COP between 3 and 4), which represents a energy savings of 60% to 75%.
According to real examples, in homes that previously operated with gas or diesel boilers, a energy savings of 50% to 70% after replacing them with aerothermal systems. For this reason, it is crucial to consider the most efficient heating systems.
Furthermore:
- Reduce CO2 emissions, improving the environmental index of the certificate.
- It is officially considered renewable energy according to European directive 2009/28/EC.
- It is compatible with other renewable systems such as photovoltaic panels.
Aerothermal energy combined with solar energy: the perfect combo
La combination of aerothermal energy and photovoltaic solar panels It is one of the most effective ways to achieve a self-sufficient home with an excellent energy rating. To gain a complete understanding of the benefits of solar panels at home, it is important to consider this synergy.
Solar energy covers part or even all of the heat pump's electrical consumption, making the system practically 100% renewableThis hybridization further reduces the carbon footprint and optimizes long-term savings.
On sunny days, it is even possible pour surplus energy into the grid through self-consumption systems with compensation (net metering), generating electricity credits that are deducted from the monthly bill.
How this influences the home's energy assessment
The energy certificate takes into account numerous aspects such as insulation, orientation, air conditioning system, hot water consumption, or use of renewable energy. Aerothermal energy directly impacts several of these factors, improving overall efficiency. Remember that proper installation can include ecological insulating materials.
Heating a home with aerothermal energy is much more efficient. than using electric radiators or traditional boilers. It also allows for a better grade in the non-renewable primary energy section, one of the most critical aspects of the certificate.
For example, replacing an electric heating system with an aerothermal system can make you go from an F or G rating to a B or even A rating, which increase the value of your home and drastically reduces the environmental impact of the home.
Real examples of savings with aerothermal systems
Several cases confirm the benefits of aerothermal energy in homes and businesses:
- A single-family home in Almería reduced its energy costs by half after replacing its gas boiler with an air source heat pump.
- A building in Zaragoza improved both efficiency and thermal comfort thanks to this system.
- Supermarkets like Mercadona They have adopted aerothermal energy in their stores, achieving a 25% reduction in energy consumption.
- The Riu Hotel in Madrid achieved 40% savings in air conditioning and ACS thanks to this type of installation.
- A food plant in Valencia saved up to 30% by applying aerothermal energy in its conservation processes.
These data show that it is not only viable at the domestic level, but also very profitable for businesses and industries.
The installation of solar panels perfectly complements the efficiency that can be achieved with aerothermal systems.
Aid, deductions and tax benefits for improving energy efficiency
The installation of systems such as aerothermal energy You can benefit from a wide variety of grants and tax deductions, both at the state and regional levels.
Within the Recovery, Transformation and Resilience Plan, for example, deductions in personal income tax are included such as:
- 20% deduction if you reduce heating and cooling demand by 7%.
- 40% deduction If you reduce non-renewable primary energy consumption by 30% (demonstrable with certificates).
- 60% deduction if you renovate your home to achieve a high energy efficiency certification.
In addition, many banks offer low-interest financing for energy efficiency improvements, and some energy companies also offer direct assistance programs.
Is it for every home?
Aerothermal energy is especially recommended in new construction homes or comprehensive renovations, as it can be easily integrated into the structure and design of the building. However, it is also viable for partial renovations if the insulation and installation allow it. Remember that the use of quality insulation systems helps optimize this type of installation.
Therefore, if you are thinking of selling or renting your property, Installing this system not only increases its value, but also improves your grade on the certificate, making you much more attractive in the market.
Opting for aerothermal energy is not only a renewable and environmentally responsible choice, but also a smart investment that improves your quality of life, reduces your energy costs, optimizes your home's energy efficiency, and, most importantly, helps build a more environmentally friendly housing model.
