We are becoming a separate company

In April 2019, the Electricity System Operator is becoming a separate company within the National Grid Group. Find out more about what this change will mean.

System Operator Transmission Owner Code

The System Operator Transmission Owner Code (STC) defines the relationship between the transmission system owners and the system operator.

The STC Modification Panel, under normal circumstances, meets on a monthly basis. It will convene ad-hoc meetings when required.

The Panel comprises members from the GB System Operator (GBSO), Onshore Transmission Owners (TOs) and Offshore Transmission Owners (OFTOs) and its main purpose is to evaluate and administrate modifications to the STC and review any potential consequence of such changes. 

Christine Brown

Lurrentia Walker

Technical Secretary
07976 940855

Rob Wilson

National Grid
07799 656 402

Zhibo Ma

National Grid

Neil Bennett

Scottish Hydro Electric Transmission plc

Neil Sandison

Scottish Hydro Electric Transmission plc

Deborah MacPherson

Scottish Power Transmission plc

Milorad Dobrijevic

Scottish Power Transmission plc

Mike Lee

Offshore Transmission Owner Representative

David Lyon

Offshore Transmission Owner Representative

Roberta Fernie

Authority Representative