You can’t tell what kind of electricity comes out of a wall socket. Is it sustainably generated or not? We make a distinction between ‘green’ and ‘grey’ electricity by certifying power that has been generated from a sustainable source and power generated from fossil sources.
The origin of electricity is verified as follows:
1. The regional grid operator or the metering company measures the amount of electricity and heat that
the plant has generated.
2. The grid operator passes this information on to CertiQ, usually on a monthly basis.
3. The production figures are converted into Guarantees of Origin which are credited to the certificate
account of the producer’s designated trader.
Guarantees of Origin (GoOs) and Disclosure Certificates are generated electronically. Although they are also called certificates, which might suggest a document on paper, there is no paper involved. The trade in GoOs is also conducted electronically. The certificate account to which we credit these different certificates is comparable to a bank account and the trade in them is comparable to internet banking.
Trading in Guarantees of Origin
Guarantees of Origin for sustainable electricity and Disclosure Certificates for fossil-based electricity are credited to the certificate account of a trader. Traders may transfer these certificates to another trader's account or use them as proof of delivery for sustainable electricity supplied to consumers. They may also withdraw certificates or cancel GoOs to turn ‘grey’ electricity into ‘green’ electricity.