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Grid Code

Grid Code

The Grid Code is critical to the operation of the power system in a liberalised energy market.  This technical document establishes the rules governing the operation, maintenance and development of the transmission system and sets out the procedures for governing the actions of all transmission system users.  The document ensures that all users are treated in a transparent and equitable manner.  For the purposes of the Grid Code, a user is defined as any party using the transmission system. 

Following an extensive consultation and review period with the Wind Grid Code Consultation Group and the general public the Wind Grid Code was approved by the CER on 1st July 2004.  The Wind Grid Code now forms an integral part of the overall Grid Code.

EirGrid is responsible for the development and maintenance of the Grid Code through the Grid Code Review Panel (GCRP).  The GCRP is a standing body mandated to review and discuss the Grid Code, its workings and offer suggestions for amendments to the Code.  Any subseqent modifications, updates and derogation requests must be approved by the CER.  It is important to note that the Grid Code is not intended to describe aspects of market operation or the rules for trading and settlement, these are contained in the Trading and Settlement Code.