GC0191: System Access Reform changes to Operational Planning and Data Provision (OC2) to support Network Access Planning Arrangements

This modification seeks to assess and implement any consequential amendments to OC2 arising from the outcomes of System Access Reform (SAR) programme. This modification seeks to clarify User responses to outage notifications including response triggers, deadlines and treatment of non-response. It will also implement consequential System Access Reform changes, including information requirements supporting a probabilistic risk assessment (OCRA).

Modification status:
Current - Proposal Raised
Last updated:
21 October 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 NESO, Transmission Owners, Generators, Interconnector Owners, Distribution Network Owners and Large Demand Customers, Large embedded Generators.

Code modification proposed by:
Stephen Baker

Documents