Sale of Flemish green certificates and CHP certificates to Elia

The Flemish government has developed a scheme requiring system operators to purchase green certificates or CHP certificates at a guaranteed minimum price.

Elia's role

As a transmission system operator or local transmission system operator, Elia is bound by public service obligations and is therefore required to purchase green certificates and combined heat and power certificates from any green power producer that asks it to do so. The information provided here concerns certificates issued by the Flemish regulator, VREG. Under Article 7.1.6 of the Decree laying down general provisions concerning energy policy (the Energy Decree), system operators must purchase green certificates from power producers whose facilities are connected to their grids or to a closed distribution system connected to their grids, provided the power producers ask them to do so. This means that Elia, in its capacity as the local transmission system operator, must apply Flemish minimum support payments to generation facilities connected to the local 70 kV to 30 kV transmission system in the Flemish Region. The amount of these minimum support payments is set on the basis of the energy source and generation technology used and the date of commissioning. The date of commissioning also determines how long minimum support must be paid.


Before it can sell support certificates to Elia, the producer must fill out the request form for a green or CHP certificate contract, sign it and return it to

Invoicing process

Once it has sold its green certificates or CHP certificates to Elia, the producer sends an invoice based on the example below to Elia by post (Elia Transmission Belgium SA, Supplier Accounts, Boulevard de l'Empereur 20, 1000 Brussels) or email ( – invoice must be in PDF format).


Please be aware that we use cookies on our website. By continuing to use this website, or by clicking "I accept", you indicate that you have read and agree with our cookie policy. More information about cookiescan be found here.