Network codes and guidelines are binding rules providing and
managing access to the transmission networks in an effective and transparent 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.
Operation codes define the processes the transmission system operators (TSOs) must follow to manage the grid operation or when facing an incident. This includes rules on cross-border cooperation and standards for dealing with emergency situations.
To date, two network codes on system operation have been developed:
Agency for the Cooperationof Energy Regulators
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