Do you generate green energy? To make the most of your energy generation, you need a special meter. It displays the green meter readings you need to enter online to obtain your green certificates.
Your prime motivation to generate your own energy is, without a doubt, energy independence. But, and this makes it worthwhile, producing your own green electricity pays off. Over the first 10 years of your system, you can actually benefit from a financial income through the resale of green certificates.
Plug & Play solar panels
If you have Plug & Play solar panels connected directly to a power socket, you are not entitled to green certificates. So you don't need a green meter and you don’t need to enter a green index. Click here to find out more about the rules in force.
The green meter measures your green energy production
When you had your solar panels or cogeneration system installed, your installer will have provided you with a new meter. This meter, called a green meter, measures the total electricity generation of your self-generation system. Indeed, it is your total production that is used as the basis for calculating your green certificates.
| Here’s an example: Your gross generation amounts to 1,000 kWh but you only use 300 kWh for your own consumption. So you feed 700 kWh into the grid. However, you will receive green certificates for the 1000 kWh generated. |
4 conditions to obtain green certificates
To receive your first green certificates, you will need to meet these 4 conditions beforehand:
Since 1 January 2026, your installation must be carried out by an installer holding a RESCert PV certification. This is a mandatory condition to access green certificates.
Signed a quote or received an invoice in 2025? Your installation remains eligible, even if your installer is not RESCert-certified.
Request Sibelga's attestation after your solar panels or cogeneration unit have been installed. This attestation confirms that your smart meter has been installed and that your system can operate safely on the grid.
You will need the following documents:
- EAN code of your smart meter
- Certificate of conformity (more info)
- Inverter data sheet
- Wiring diagram for decoupling relay (installations > 30 kVA)
Your installation must be certified as a "green electricity production installation" by an Approved Certification Body (OCA) designated by Brugel.
For installations up to 36 kWp, no on-site visit is needed, the OCA reviews your file remotely.
Once certification is complete, Brugel gives you access to its Extranet and Sibelga activates your Green Meter application.
Once you've received Sibelga's attestation, you can submit your green meter readings via the Green Meter application. You can do this up to 4 times a year (in March, June, September and December). Submitting your readings is essential to receive your green certificates.
Every quarter, we send you a reminder by e-mail. You have one month to submit your meter readings. If you miss the deadline, you'll have to wait until the next quarter.
Receiving green certificates
After entering your green meter readings on Sibelga's Green Meter application, Brugel calculates the number of green certificates to which you are entitled. Once this calculation has been made, you will find your certificates on Brugel's Extranet.
Reselling green certificates
Once you are in possession of the green certificates issued by Brugel, you can resell them to an energy supplier. It is up to you to choose which supplier, active in the Brussels Region, or intermediary you wish to resell your certificates to.
What's changing in 2026?
1. RESCert certification now required (since 1 January 2026)
Having solar panels installed with a maximum capacity of 5 kWp? Your installer must hold a RESCert PV certification. Without it, you won't be able to receive green certificates.
→ Check the list of RESCert-certified installers
2. New coefficients for green certificates (from 1 April 2026)
For new installations commissioned from 1 April 2026, the coefficients used to calculate the number of green certificates are changing.
- Small installations (up to 5 kWp) are not affected
- For larger installations, the number of green certificates decreases
- Above 100 kWp, no green certificates will be granted at all.
→ View the current coefficients on the Brugel website
3. Your existing installation is not affected
These changes only apply to new installations. Already have solar panels? Your green certificates remain unchanged for the full duration of your eligibility (10 years).