Investigation into National Grid Electricity Transmission plc and SP Transmission plc and their compliance with obligations relating to the Western HVDC subsea link

Opened:
Jan 2020

We are investigating whether National Grid Electricity Transmission plc (“NGET”) and SP Transmission plc (“SPT”) breached licence conditions and statutory obligations relating to the delivery and operation of the Western High Voltage Direct Current (“WHVDC”) subsea link between Scotland and Wales.

Special Condition (“SC”) 6I of both companies’ Electricity Transmission Licences relates to the specification of Baseline Wider Works Outputs and Strategic Wider Works Outputs and Assessment of Allowed Expenditure, including the WHVDC Output. This SC requires that the WHVDC Output be delivered by regulatory year 2016/17.

In addition, we are investigating potential breaches of standard licence condition (“SLC”) D2 of the Electricity Transmission Licence which relates to failures to provide transmission services (provision of a system capable of allowing electricity flow and fit for those purposes), and of section 9(2) of the Electricity Act 1989 relating to the obligation to develop and maintain an efficient, co-ordinated and economical system of electricity transmission.

The opening of this investigation does not imply that we have made any findings about possible non-compliance by NGET, nor by SPT.

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