GC0186: Proposed Grid Code Changes - Post Electricity System Restoration Standard (ESRS)

The purpose of this modification is to update the Grid Code in respect of the restoration requirements following the implementation of GC0156, in particular (but not limited to) the introduction of ’Regional Restoration Plans’, the equitable treatment of National Grid Electricity Transmission, Scottish Power Transmission and Scottish Hydro-Electric Transmission Limited during a restoration, the ability for Network Operators to switch at sufficient speed, clarifications / improvements in testing / data requirements and correction of known errors.

Modification status:
Current - Proposal Raised
Last updated:
25 February 2026

Code Administrator Contact: [email protected] 

Governance Route: The Proposer has raised a modification and is seeking a decision from the Panel on the governance route to be taken.

Impacts: High impact​ on Transmission System Operators, Transmission Owners, Network Operators and Generators.

Modification drivers: ​Efficiency, Harmonisation, System Operability, and Transparency.

Code modification proposed by:
Antony Johnson

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