GSR038 - Single Transformer Offshore AC Substations

This modification is proposed to assess the restriction in Clause 7.7.1.1 that effectively requires two offshore AC transformers for grid entry point capacities of 90 MW or more.

Modification status:
Current - Proposal Raised
Last updated:
10 March 2026

Code administration contact: [email protected]

This modification is expected to have a: ​ ​High impact​ on Offshore Transmission Owners (OFTOs) and Offshore Generators and a Medium impact on NESO 

 Governance Route: Standard Governance modification to proceed to Code Administrator Consultation

Code modification proposed by:
Slawomir Kurek

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