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Solar panels in Brussels: certified installer and Sibelga declaration

To get green certificates for new home solar panels in Brussels, have them fitted by a RESCert-certified installer and declare them to Sibelga. The support is recalculated every year, so check the current rules first.

Brussels · Subject to change

Sources checked on · next check by . Check the source before you act.

Solar & renewablesLevel 4 · RenovationCost: €2,500–25,000Weeks or months

In Brussels, solar panels can earn green certificates, which Brugel calculates and grants. A certified installation is eligible for 10 years. Two steps keep you eligible.

First, choose a certified installer. Since 1 January 2026, a new installation of up to 5 kWp, the usual size for a home, needs a RESCert PV certificate (called the "certificat SER" in Brussels) issued by a certified installer. Brugel checks for it when you apply, and without it you get no green certificates. The RESCert website lists certified installers.

Second, declare your panels to Sibelga with its mandatory declaration form. Sibelga then sends you the attestation you need to get green certificates. After that, you enter your green meter readings every quarter in the Green Meter app, and follow your certificates in your Brugel extranet account.

The support itself changes. Brugel recalculates it every year for new installations. For installations started up from 1 April 2026, home systems up to 5 kWp kept the same support, while larger systems get less and the largest get none. The Brugel page gives the current coefficients.

Details

ImpactIndirect · This saves no energy by itself: it is a rule, a service, a contract, or a health or safety item. How we rate impact
Estimated savingNot quantified here; green certificate support changes every year, so we link the official pages instead of giving figures. (confidence: low)
Who actsYou (owner)
Needs landlord's agreementNo
TypeAction

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Sources

  1. Panneaux photovoltaïques : nouvelles mesures en 2026 pour les certificats verts (in French) · Bruxelles Environnement (official source) · checked on
    Backs: from 1 January 2026 new installations up to 5 kWp need a RESCert certificate from a certified installer to get green certificates, checked by Brugel; from 1 April 2026 home systems up to 5 kWp keep the same support, larger ones get less and the largest none; Brugel recalculates the support every year
    Where: news item of 5 November 2025, sections on the RESCert obligation and on the 2026 changes to the support
  2. Panneaux solaires (in French) · Sibelga (official source) · checked on
    Backs: mandatory declaration of the panels to Sibelga, whose attestation gives access to green certificates; green meter readings entered every quarter in Green Meter; certificates managed in the Brugel extranet
    Where: sections 'Certificats verts' and 'Outils utiles' > 'Déclaration obligatoire', 'Green Meter', 'Extranet Brugel'
  3. Mécanisme des certificats verts (in French) · Brugel (official source) · checked on
    Backs: Brugel calculates and grants green certificates; certified installations are eligible for 10 years; coefficients recalculated every year
    Where: sections 'Principe', 'Durée' and 'Calcul du taux d'octroi et du coefficient multiplicateur'

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