On the page "Roles" you will find a general view over those involved in the Danish electricity market and which roles they play. As the Danish electricity market is liberalized all consumers have the right to choose their own electricity supplier. On the page "Change of supplier" you can learn how to change supplier. Energinet.dk issues guarantees of origin for electricity produced from renewable energy sources. Under "Renewable energy sources" you can read more about the choices you have as an electricity consumers.