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Grid Code (GC) GC0117: Improving transparency and consistency of access arrangements across GB by the creation of a pan-GB commonality of Power Station requirements

Grid Code (GC) GC0154: incorporation of interconnector ramping requirements into the Grid Code as per System Operator Guidelines Article 119

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Grid Code Modification GC0177 proposes to address inconsistencies in access arrangements for Power Stations across different regions in Great Britain (GB). This document outlines our decision to send back the modification to the Grid Code Review Panel. 

Main document

[GC0117 authority decision letter [PDF, 126.31KB]

](https://www.ofgem.gov.uk/sites/default/files/2025-07/GC0117-Authority-Decision-Letter.pdf)

Grid Code (GC) GC0154: incorporation of interconnector ramping requirements into the Grid Code as per System Operator Guidelines Article 119

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Grid Code (GC) GC0117: Improving transparency and consistency of access arrangements across GB by the creation of a pan-GB commonality of Power Station requirements