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The combination of aerothermal energy and photovoltaic solar panels is the big trend in air conditioning and energy savings in 2025. This hybrid system allows you to enjoy heating, cooling and domestic hot water while committing to self-consumption and reducing your dependence on the electricity grid. Discover why this combination maximises savings, increases efficiency and contributes to the sustainability of your home or business.
How are aerothermal energy and solar panels integrated?
The integration is based on the electricity generated by the solar panels being used to power the aerothermal heat pump. When the sun shines, the photovoltaic installation produces electricity that can be used directly for air conditioning, cooling or producing hot water. If there is a surplus, it can be stored in batteries or fed into the grid, optimising self-consumption and minimising electricity costs.
Basic operation:
- The heat pump extracts energy from the outside air and transforms it into heat/cooling for air conditioning or DHW.
- The electricity consumption for this process is covered, in large part or in its entirety, by solar production.
- The system can manage solar surpluses by activating the aerothermal system to heat water and store it, maximising the use of renewable energy.
Key advantages of integration
- Savings on bills: It is possible to reduce energy expenditure by up to 75%, achieving minimal monthly bills and amortising the investment more quickly.
- Maximum efficiency: Aerothermal energy is already an efficient system on its own (average COP of 4). Powered by solar energy, this performance translates into real self-consumption and reduced emissions.
- Sustainability: 100% renewable energy consumption, drastic reduction in CO₂ and alignment with the energy transition.
- Energy independence: The larger the photovoltaic surface area, the greater the independence from the grid and protection against electricity price rises.
- Low maintenance: Both systems require minimal maintenance compared to traditional boilers.
- Property revaluation: Increases energy certification and property value.
Savings and payback data
| Type of property | Estimated investment (€) | Annual savings (€) | Payback (years) |
|---|---|---|---|
| Single-family home* | 13.000 – 17.000 | 800 – 1.300 | 6 – 8 |
| Homeowners’ association | 9,500 (per dwelling) | 850 – 1.200 | 7 |
| SME/company | 28.000 – 40.000 | 3.500 – 4.500 | 5 – 7 |
*Includes aerothermal heat pump and photovoltaic solar field correctly sized with current subsidies and grants.
Savings are increased if batteries are added, allowing 80% or more of annual consumption to be covered by renewables alone. In addition, there are state and regional subsidies that can cover up to 80% of the total cost of the system.
Technical requirements and key steps
- Professional sizing: It is crucial to calculate the optimal power of the heat pump and the appropriate photovoltaic surface area. A certified installer will carry out this customised study.
- Installation space: An outdoor area is required for the aerothermal unit and a sunny space to install the panels, usually on the roof.
- Compatibility and smart management: New systems allow you to programme the aerothermal system to take advantage of peaks in solar generation and store surpluses in DHW or batteries.
- Legalisation and subsidies: Apply for a building permit and register for self-consumption and subsidies with a certified installation company.
Comparison with other systems
| System | Grid consumption | Performance | CO₂ emissions | Maintenance | Service life |
|---|---|---|---|---|---|
| Aerothermal+Solar | Very low | Very high | Very low | Low | 20+ years |
| Diesel/Boiler | Very high | Medium | High | High | 10 years |
| Direct electricity | High | Low | High | Low | 10 years |
*Renewable integration is the only solution that allows bills close to £0 and maximum autonomy.
Conclusion: maximum efficiency and savings with renewable energy
The integration of aerothermal energy and solar panels is currently the safest way to achieve savings, efficiency, autonomy and sustainability. A smart investment with benefits from day one, capable of transforming any Spanish home or business into a benchmark for responsible consumption and the future of air conditioning.
Do you have any questions? Consult a certified installer, request your free study and discover how you can save more with self-consumption and renewable energy.
