Regulations relating to the quality of supply in the Norwegian power system (No. 1557 of 2004).

These Regulations shall provide rules for power supply giving consideration to such public and private interests. The aim of the Regulations is to contribute to ensuring a satisfactory quality of supply in the Norwegian power system and socially efficient operation, expansion and development of the power system.
The Regulations specify requirements regarding reliability of supply and voltage quality. They provide for procedures in the event of dissatisfaction with quality of supply of energy by grid companies. Grid companies shall record short interruptions due to incidents in their own high-voltage installations. Terms and conditions of an supply agreement can not offer grid customers a poorer quality of supply than the minimum requirements laid down in these Regulations, unless a private agreement has been signed regarding derogation from requirements. The Norwegian Water Resources and Energy Directorate may in special circumstances grant exemptions from these Regulations.