In recent years, aerothermal energy has become established in Spain as one of the most effective solutions for air conditioning and hot water in the residential sector. Thanks to its ability to extract renewable energy from outside air, this system has positioned itself as a strategic option for those who want to save on their energy bills and contribute to the fight against climate change.
The advancement of aerothermal energy responds to the need to decarbonize Spanish homes and reduce dependence on fossil fuels. It allows traditional heating systems, such as diesel or natural gas boilers, to be replaced with much more efficient and cleaner heat pump equipment, providing advantages from the first day of operation.
How does aerothermal energy contribute to energy savings and emissions reduction?
The adoption of aerothermal systems in typical homes can achieve up to a 60% reduction in non-renewable primary energy consumption and a reduction of up to 75% in COXNUMX emissions.2. In addition, users can experience an average reduction of 35% in their energy bill, a percentage that can reach 50% if the installation is complemented by solar energy.
Current equipment allows for complete climate control of a home, integrating heating, cooling, and domestic hot water, and is adaptable to both new construction and renovation projects. This provides greater comfort and efficiency in the long term.
Costs, investment, and profitability: Is geothermal energy affordable?
One of the great attractions of aerothermal energy today is that installation costs have been significantly reduced, making it possible to implement it even in existing or older buildings. In many cases, the initial investment is recovered in less than five years, and the savings generated begin to be felt in the household economy from the first full year.
This positive economic impact, combined with a lower maintenance requirement compared to conventional systems and improved environmental quality, means that aerothermal energy is gaining increasing prominence in the energy efficiency sector.
Difference between aerothermal energy and heat pump: clarifying concepts
It's fundamental distinguish between the concept of aerothermal energy and that of heat pump. While Aerothermal energy refers to the use of thermal energy present in the airThe heat pump is the device responsible for capturing and converting it into useful energy for heating, cooling, and hot water. This difference is key to understanding the technology's role in the energy transition and decarbonization policies.
New tax breaks and incentives for the adoption of aerothermal energy
The Government has recently approved a package of measures that allows local councils to implement tax reductions of up to 50% on the IBI (Property Tax) and up to 95% on the ICIO (Tax). for aerothermal and geothermal energy installations. This decision responds to a long-standing demand from the sector, which called for equalizing tax incentives for ambient energy with those for photovoltaic energy.
These tax incentives represent a significant benefit for homeowner associations and individuals, as the national decision is transferred to the regulations of each municipal government, which will be able to implement these reductions.
Along with these discounts, decision-making procedures in residential communities have also been modified, thus facilitating the adoption of agreements to install renewable energy in residential buildings. Now, aerothermal energy has a safer and more agile framework for its deployment in the community.
More incentives: Energy Saving Certificates (CAEs) and public subsidies
In addition to the municipal bonuses, the following are maintained: Energy Savings Certificates (CAEs), a private instrument that provides a cash reward to those who manage to reduce energy consumption. Each MWh saved can be compensated with between €115 and €140 after technical validation and within an average of three months of installation.
On the other hand, there are state and regional subsidies financed with European Next Generation EU funds.These grants are managed through the autonomous communities, so it's possible to benefit from both CAEs and public subsidies at the same time, significantly increasing the attractiveness of investing in aerothermal energy.
The combination of these incentives makes aerothermal energy one of the most powerful levers for renovating the housing stock, moving toward energy efficiency, and reducing the carbon footprint of the Spanish real estate sector.
Current regulations facilitate the energy modernization of homes
The recent approval of the Real Decreto-ley 7/2025 It brings with it important legislative reforms, such as the possibility for city councils to apply the aforementioned bonuses or the modification of the Horizontal Property Law. This streamlines decision-making in owners' meetings and provides legal certainty for renewable energy installations, including aerothermal and geothermal energy..
More and more Spanish homes are expected to be able to upgrade their heating and air conditioning systems, with the goal, according to industry estimates, of replacing around 270.000 units annually by 2050.
Aerothermal energy continues to grow and gain popularity, supported by its efficiency, profitability, lower environmental impact, and an increasingly favorable legal framework. Furthermore, new municipal and state aid consolidates the energy transition, turning it into a real opportunity for individuals and communities in Spain.
