The network codes (sometimes adopted as network guidelines) issued by the European Commission comprise a comprehensive set of regulations governing the electricity market in the EU.
They define and harmonise numerous regulations in the areas of market integration (market and trading codes), grid system operation (system operation codes) and grid connection (connection codes) and thus create the basis for an efficient, integrated internal electricity market across Europe.
Consultations and publication of special requirements, terms and conditions and methodologies
As part of implementing the network codes, transmission system operators are frequently required to hold public consultations and submit proposals on special requirements, terms and conditions and methodologies to their national regulatory authorities for approval. The public consultations as well as the terms and conditions and methodologies already approved have been published or linked in the following.
Grid System Operation
Operation of the power grid is governed by system operation codes, which aim to ensure network security across interconnected power systems and to create a harmonised system operation regime for efficient grid use across country borders. The system operation codes are as follows:
- Electricity Transmission System Operation Guideline (SOGL)
- Network Code on Emergency and Restoration (NC E&R)
The grid connection codes aim to create harmonised rules for grid connection for power-generating modules, demand facilities, distribution systems and HVDC systems.
The grid connection codes are as follows:
- Network Code on Requirements for Generators (NC RfG)
- Demand Connection Code (DCC)
- Network Code on High Voltage Direct Current Connections (HVDC)