Network codes and guidelines are binding rules providing and
managing access to the transmission networks in an effective andtransparent manner.
They were established in 2009 by the EU Regulation on conditions for access to
the network for cross-border exchanges in electricity (EU Regulation 714/2009)
and recast in 2019 by the Regulation on the internal market for electricity (EU
Regulation 2019/943). The codes are crucial for ensuring coordinated system
operation and a sound technical evolution of the European Union’s transmission
system and electricity market.
Grid Connection Codes
Grid connection refers to all the
subjects establishing and maintaining a physical connection between the
transmission and/or distribution grids and the grid users. Grid connection, or network connection, is one
of the areas regulated by the specific network codes. These rules aim to
develop a harmonised electricity grid connection regime, as well as efficient
and secure operations. This is particularly important in view of the
integration of an increasing share of sources of renewable energy in the system.
European rules on grid connection also ensure a fair competition in the
electricity market, and facilitate the electricity trade across the Union.
Three network codes on grid
connection have been developed:
ImplementationMonitoring Stakeholders' Involvement History
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