Completed Projects

Completed Projects:

The Caithness–Moray HVDC scheme (CM), was commissioned in 2018, enabling wind generators in Caithness to connect to the rest of the UK grid, bringing the abundant wind resource in the north of Scotland to the rest of GB. Converter stations are located at Spittal (800MW capacity) and Blackhillock (1200MW capacity). The scheme has been designed to extend to up to 5 terminals, making it Europe’s first multi-terminal HVDC grid design. The multi-terminal extension to Shetland is currently under consideration.

Multi-terminal DC links bring greater flexibility to DC transmission. As this is a new technology there is a requirement to build operational and technical knowledge to reduce risks associated with their deployment. The National HVDC Centre hosts the replicas for the Caithness and Moray converter stations, but also the Shetland converter station (even though it has yet to be built).

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