Why is the project required?
Significant generation connecting to the North East transmission network has triggered the need for a new 400kV substation in Peterhead.
We previously consulted on proposals for a new substation at Peterhead in 2013, however due to the changing requirements in the transmission network, we have undertaken further system and technical analysis to ensure that our proposals meet the future requirements of the network.
Our proposals will consider plans to reinforce the existing 275kV overhead line, which connects the substations at Blackhillock, Keith, New Deer, Rothienorman, Kintore and Peterhead, to enable operation at an increased voltage of 400kV.
On this basis, we propose to develop a new substation adjacent to the existing 275kV substation at Peterhead. The new substation will comprise of four super grid transformers, plant enclosures, a 400kV gas-insulated busbar, substation control building and associated infrastructure.