Why choose Avenir Renovations?
Our services for solar panel installation in Brussels
Whether you own a single-family home, an apartment building, or a co-owned property, we offer a turnkey solution tailored to your consumption and your roof.
Feasibility study and sizing
Before any installation, we carry out:
- an analysis of the orientation, tilt, and shading of your roof,
- a study of your annual electricity consumption,
- custom sizing of the system (number of panels, peak power, estimated production...).
This step optimizes your return on investment and ensures stable production in the long term.
Installation of photovoltaic panels
We install next-generation high-efficiency monocrystalline solar panels:
- installation on sloped roofs (tiles, slates, zinc),
- installation on flat roofs with ballast,
- integration into the building for complete renovations.
We work with recognized brands in the Belgian market (SunPower, Trina Solar, REC, SMA, Huawei...).
Installation of inverters and monitoring systems
We install a central inverter or micro-inverters depending on your configuration:
- conversion of direct current to alternating current,
- optimization of production panel by panel,
- access to an online monitoring platform or via mobile app.
This allows you to monitor your production in real time and identify any drop in performance.
Storage and self-consumption
Upon request, we can integrate a home battery to store the electricity produced:
- optimization of self-consumption,
- backup in case of power outage,
- reduction of dependence on the grid.
We advise you on the profitability of this solution within the Brussels regulatory context.
The 5 steps of a solar installation with Avenir Rénovations
Avenir Rénovations installs your solar panels in Brussels in 5 steps: study, choice of equipment, administrative procedures, compliant installation according to RGIE, and sustainable follow-up.
Why install solar panels in Brussels in 2025?
In 2025, Brussels offers a profitable framework for solar: no prosumer tariff, good sunlight, and immediate added value thanks to a better energy performance certificate and an eco-friendly image.
Unlike other regions, Brussels allows the direct sale of produced electricity without a prosumer tariff, making installation very profitable in the long term.
Despite its gray reputation, Brussels enjoys about 1,200 to 1,300 useful sunlight hours per year, representing a high production potential.
A property equipped with solar panels is more attractive, better rated on the energy performance certificate, and perceived as sustainable by buyers.
How much does the installation of solar panels in Brussels cost?
Indicative prices (including VAT, installation included)
| Installed power | Number of panels | Average price |
| 3 kWc | 8 to 10 | 5,500 to 7,000 € |
| 5 kWc | 12 to 15 | 7,500 to 9,000 € |
| 7 kWc | 18 to 20 | 9,000 to 11,500 € |
These rates include the technical visit, supply, installation, commissioning, and administrative procedures.
VAT at 6%
Applicable for homes over 10 years old, occupied privately. Avenir Rénovations takes care of verifying and applying this rate.
Grants and assistance available in Brussels
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Solar grant 2025 (Brussels Environment)
- Grant up to 1,500 €, decreasing according to installed power.
- Grant capped at 20% of the installation cost.
- Conditions: installation by a certified professional, registration in the PEB register, provision of the compliance certificate.
-
Green certificates
- For each MWh produced, you receive 1 green certificate for 10 years.
- Estimated value: 65 € / certificate (variable).
- This can represent up to 650 €/year depending on your production.
-
Prosumer regime
- No prosumer rate as in Wallonia.
- In Brussels, all injected electricity is sold to your supplier, generally at a rate between 4 and 8 c€/kWh.
Avenir Rénovations helps you register your installation with Brugel and choose a suitable contract.
Why choose Avenir Rénovations for your solar installation in Brussels?
Installing photovoltaic panels is not just about placing a few modules on a roof. In Brussels, the administrative procedures, subsidies, and technical aspects require local expertise. Avenir Rénovations guarantees you:
- a comprehensive study of your project,
- installation in compliance with RGIE and PEB standards,
- a certified installation eligible for regional aid,
- support for applications for green certificates or registration with Brugel,
- reliable and responsive after-sales service.
Concrete example of photovoltaic installation in Brussels
Mrs. Herremans, in Uccle, wanted to equip her sloped roof with a solar installation to reduce her bill and improve the value of her house.
Project completed:
- 12 Trina Solar panels – 4.5 kWp,
- SMA inverter, monitoring via app,
- registration with Brugel + grant application.
Estimated production: 4,000 kWh/year
Total cost: €7,600 including VAT
Grant obtained: €1,150
Green certificates: €260/year for 10 years
→ Estimated profitability: 7 to 9 years
FAQ – Solar panel installation in Brussels
Can I install panels on a flat roof?
Yes, with a weighted system oriented south or southeast. No perforation of the roof is necessary, which avoids any risk of infiltration.
Is a planning permit required in Brussels?
No, except in the following cases: listed building, protected area, integration into the facade. We check for you according to your municipality.
Is solar production profitable in Brussels?
Yes, with a payback period between 6 and 10 years depending on your installation, your consumption habits, and the aids received.
What if I consume little during the day?
We offer you storage options, automatic regulation, or a resale contract with a supplier buying your surplus.
Is maintenance necessary?
Very little. An annual cleaning is usually sufficient. Our installations are guaranteed and we offer a maintenance service upon request.
Avenir Rénovations: your trusted solar installer in Brussels
Choose energy independence, a reduced bill, and a more sustainable home. Avenir Rénovations supports you in installing reliable, efficient solar panels perfectly suited to your roof.
Request your free study today for a solar panel installation in Brussels.
Agency Avenir
Rénovations
for Solar panel installation in Brussels: reduce your bills and produce your own energy
An expert to take charge of your renovation projects and guarantee deadlines, budgets and quality of all services.
