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.
As legally binding EU regulations, the network codes are directly applicable in all EU member states. They contain numerous obligations for transmission system operators and other market participants that must be implemented within clearly defined periods. Implementation of the network codes requires comprehensive alliances between all participating actors at both national and international level.
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.