Combined solar system: how to optimize your heating and your hot water supply?
Nowadays, optimizing heating and the production of domestic hot water in our homes has become a priority for many households. With the rising energy costs and an increasing awareness of the importance of reducing our carbon footprint, the combined solar system (SSC) emerges as an effective and sustainable solution. Thanks to the free energy from the sun, this innovative system not only heats your home but also provides the hot water necessary for your daily life. Let’s examine how an SSC can transform your approach to heating and make your home an example of sustainability.
Understanding the foundations of a combined solar system
The combined solar system is a technology that integrates both the production of domestic hot water and the heating of living spaces. Composed of thermal solar collectors, a heat transfer fluid, and a storage tank, it captures solar energy to optimize your heating needs.
A simple yet effective operation
The principle of operation of an SSC is based on the absorption of solar rays by the collectors installed on your roof. The energy thus recovered is then transferred to the heating sphere, thanks to the heat transfer fluid. This fluid circulates in a closed circuit to a storage tank where the water is heated for your sanitary and heating needs.
Use of renewable and inexhaustible energy
Efficient recovery of heat for sanitary water
The key components of the system
To fully benefit from this type of system, it is crucial to focus on its various components:
Component | Role |
|---|---|
Solar collectors | Capture solar energy |
Heat transfer fluid | Transfers heat |
Storage tank | Heat accumulator for water and heating |
In addition to these elements, an SSC can be coupled with other heating systems for greater efficiency, particularly biomass boilers or heat pumps, which will take over in case of insufficient sunlight.
The advantages of a combined solar system
Installing an SSC is not just a technical choice but also represents a personal and environmental valorization approach. Here are some significant advantages.
Reduction of energy bills
With an SSC, you can significantly reduce your energy bills. This system covers up to 60% of your heating needs and up to 80% of your hot water needs. As a result, you decrease your dependence on fossil fuels and save money in the long term.
Property valuation
A home equipped with a combined solar system has a better perception in the real estate market. In addition to obtaining a good Energy Performance Diagnosis (DPE), it attracts environmentally conscious buyers and energy-saving initiatives, thus increasing the value of your property.
Thermal comfort throughout the year
The SSC guarantees pleasant and constant heating all year round. In winter, it can be paired with an auxiliary heating source, such as a boiler, to ensure optimal comfort.
A gesture for the environment
By using solar energy, you contribute to reducing CO₂ emissions and decrease your carbon footprint. Adopting this solution is an eco-responsible and civic act, conducive to building a sustainable future.
The installation and commissioning steps of a combined solar system
To ensure the proper functioning of your system, the installation must be carried out by a qualified professional according to certain key steps.
Installation of solar collectors
To maximize the efficiency of the solar collectors, it is essential to meet certain conditions:
Minimum surface: about 12 m².
Orientation: due south with an inclination between 30° and 45°.
Absence of shade: install in an open area.
Setting up the storage tank
The tank must have a capacity suitable for your home (between 700 and 1,000 L). It should also be well insulated to minimize thermal losses. The location is also critical: a protected space is preferable.
Installation elements | Recommendation |
|---|---|
Storage tank capacity | 700 - 1,000 L depending on needs |
Required floor area | 1.5 to 3 m² |
Insulation | Well insulated to reduce losses |
Connections and verifications
After the installation of the collectors and the tank, it is necessary to proceed with the connections:
Circulation of the heat transfer fluid to the tank.
Connection to the heating circuit aiming for low-temperature radiators.
Possible installation of an auxiliary heating source.
It is imperative to check the tightness of the system, the pressure, and the proper functioning of the heat transfer fluid before commissioning.
Financial aids for the installation of a combined solar system
Installing a combined solar system can represent a considerable cost, but several financial aids are available to lighten your investment.
The main aids available to you
MaPrimeRénov' : up to €10,000 depending on your income.
Energy Bonus: up to €5,560.
Zero-interest eco-loan: available between €15,000 and €30,000.
Reduced VAT at 5.5%: to reduce the final cost of installations.
To benefit from these aids, it is essential to call upon a certified RGE (Recognized Guarantor of the Environment) professional, who will guarantee the compliance of installations with the required quality standards and access to subsidies.
The eligibility conditions for MaPrimeRénov'
To benefit from aids, you must meet certain conditions:
Have an income below a certain ceiling.
Be the owner of a primary residence.
Renovate a dwelling completed at least 15 years ago.
It is also recommended to verify all conditions with the Anah or expert advisors in energy renovation.
Complementary solutions to your combined solar system
To maximize the effectiveness of your installation, it is possible to combine it with complementary technologies. This allows for an increase in the overall yield of your heating system.
Using a heat pump
The heat pump (PAC) is an effective way to maintain a pleasant temperature in winter. By coupling an SSC with an air-water heat pump, you can benefit from a continuous supply of heat, even during low sunlight. The heat pump will exploit the calories from the air to meet your energy needs.
Integrated into a smart heating system
A smart heating system groups various technologies, such as Fronius or SolarWatt, which will allow you to manage your energy consumption optimally and significantly reduce your bills.
Technology | Description |
|---|---|
Fronius | Efficient photovoltaic energy management |
LG Solar | High-performance and durable solar panels |
Schüco | Eco-friendly window and door systems |
Innovations in the renewable energy sector continue to evolve. Choosing the right brands, such as Enphase Energy and Soleos, will allow you to benefit from high-quality and high-performance installations.
FAQ on combined solar systems
1. What is the lifespan of a combined solar system?
A combined solar system can last between 20 and 25 years if well maintained and installed correctly.
2. How much can I save with an SSC?
You can reduce up to 60% of your heating expenses and 80% of your hot water needs.
3. Do I need an auxiliary heater with an SSC?
Yes, it is recommended to have an auxiliary heater for periods of low sunlight to ensure constant comfort.
4. Can I combine my SSC with other renewable energy systems?
Absolutely, an SSC can be integrated with heat pumps or boiler systems to maximize energy efficiency.
5. What are the main criteria for installing an SSC?
The criteria include the size of the housing, the orientation and inclination of the collectors, as well as access to certain financial aids.