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European Network Codes

 

What are Network Codes

European Network codes are a set of rules that, according to the “Third Energy Package”, are applied to different areas of the energy sector and are defined for cross-border issues regarding:

• the connections to the grid (Connection Network Codes),
• the integration of markets and the management of grid congestions (Market Network Codes),
• the safety and interoperability of transmission grids (System Operation Network Codes).

Network Codes drafting

EC Regulation no. 714/09 has assigned to ENTSO-E, the European Association of Transmission System Operators, the task of drafting European Network Codes, on the basis of an annual priority list defined by the European Commission in compliance with the framework directives adopted by ACER (the Agency for the cooperation of Energy Regulators), and following stakeholders’ consultation.

The relationship with National Network Codes

European Network Codes, adopted by the Commission through Comitology Procedure, are supranational and binding legislative acts that, as such, prevail over the national ones regarding cross-border issues.

National implementation process

Each Network code requires a series of steps to be taken before they can enter into force. This could be national decisions, the conclusion of regional agreements or the creation of more detailed european methodologies

TSOs, DSOs, market participants, National Regulatory Authorities, ACER and ENTSO-E are involved in the implementation process of the Network Codes.

Status of the network Codes 

Network Codes and Guidelines and entered into force are reported below, as well as the relevant implementing approved procedures.


  • Operations Network Codes

    a) Guideline on electricity transmission system operation ( Commission Regulation EU 2017/1485) 

    - SO Guideline entered into force on 14 September 2017. 

    - SO Guideline lays down a European level harmonized framework for the management of the European System of Electricity for Transmission System Operators, Distribution System Operators and Significant Grid Users, with reference to the requirements and principles for the safe management of the electrical system and the rules and responsibilities for co-ordination between the transmission and distribution system operators from the operational planning phase to the real-time operation of the system

    • Methodologies approved by Regulators/ ACER according to the SO Guideline:

    All TSOs’ proposal for a common grid model methodology (CGMM SO Guideline). It is the common proposal developed by all Transmission System Operators regarding the methodology for establishing a common grid model in accordance with articles 67 (1) and 70 (1) of the Commission Regulation (EU) 2017/1485 (So Guideline).The CGMM SO Guideline has been approved by the Italian Regulator (ARERA) with Resolution no 379/2018/R/eel

    .• All TSOs’ proposal for the determination of LFC blocks for the Synchronous Area Continental Europe (LFC Blocks). It is the common proposal developed by all Transmission System Operators of the Synchronous Area Continental Europe regarding the determination of the LFC blocks in accordance with article 141 (2) of the Commission Regulation (EU) 2017/1485 (So Guideline). The proposal has been approved by the Italian Regulator (ARERA) with Decision 450/2018/R/eel


     b) Network code on electricity emergency and restoration (Commission Regulation EU 2017/2196)

    - The Regulation entered into force on 18 December 2017
    - The Regulation establishes a network code which lays down the requirements on: a) the management by TSOs of the emergency, blackout and restoration states; b) the coordination of system operation across the Union in the emergency, blackout and restoration states; c) the simulations and tests to guarantee a reliable, efficient and fast restoration of the interconnected transmission systems to the normal state from the emergency or blackout states;(d) the tools and facilities needed to guarantee a reliable, efficient and fast restoration of the interconnected transmission systems to the normal state from the emergency or blackout states