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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

Code Administrator
07866 794568

Ren Walker

Technical Secretary
07976 940855

Rob Wilson

National Grid ESO Representative
+44 7799 656 402

Matt Baller

National Grid ESO Representative (Alternate)

Nicola Bruce

National Grid ESO Representative

Keith Jones

National Grid ESO Representative (Alternate)

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

Richard Woodward

NGET Representative

Adam Brown

NGET Representative

Jonathan Coe

Authority Representative