New Deer Substation
- Transmission reinforcement
Status: Construction Phase
Stage 4 of 5 complete — This is the stage where we mobilise our people, contractors and equipment. The project is well underway at this point.
About the Project
We have constructed a new 400/275kV substation adjacent to the existing transmission overhead line at New Deer, in the north east of Scotland.
The substation has been constructed to operate at a voltage of 275kV, with a view to being upgraded to operate at 400kV in the future. The transmission system in the north east and east coast of Scotland will be upgraded to 400kV over the next decade, in order to facilitate this, we are proposing both upgrading the existing overhead line network in the region and installing new substations at various points.
These works are required to allow increased generation capacity access to the transmission system, while keeping the network fully operable and compliant with all necessary technical standards. Without these necessary reinforcements, the network cannot facilitate all generation connections.
Establishing the substation at New Deer addresses this issue and in effect increases the networks efficiency and capability. Power sharing across these circuits becomes more important as generation load increases on the system.
Why is the Project Required?
There is a significant amount of renewable energy scheduled to connect to the energy transmission network in the north east of Scotland over the next ten years. One of the key generators of this is the Moray Offshore East Wind Farm, a 900MW offshore wind farm situated in the Moray Firth, which was given consent by the Scottish Government in 2014.
It has been determined that New Deer is the optimum location for Moray Offshore East to connect to the GB transmission network. To facilitate this connection, there will be two substations built at New Deer. One of which will be owned by Moray Offshore East and the other will be owned, operated and maintained by us.
Throughout the life of our projects, we aim to work positively with local communities and keep people informed about what we are doing. This is particularly important when we are developing a proposal and we want to understand what local people think about our plans.
We endeavour to take the time to discuss proposals with local community councils, encourage engagement from the wider community and listen to the feedback we receive.
We will do our best to answer any questions and address issues or concerns that are raised with us.
When our project progresses into construction, we will continue working closely with the local community to ensure that our work has as little impact on the lives of those living and working in the area and as many long term positive effects as possible.
New Deer Substation progress video
Energisation of New Deer Substation
New Deer Primary School
A selection of photographs documenting the project construction progress.
SSEN Transmission is responsible for maintaining and investing in the electricity transmission network in the north of Scotland and our network extends over a quarter of the UK’s land mass, crossing some of its most challenging terrain.
Our operating area is home to vast renewable energy resources, and this is being harnessed by wind, hydro and marine generation. Working closely with National Grid Electricity System Operator (the 'ESO'), we enable electricity generators to connect to the transmission system, allowing the electricity generated by them to be transported to areas of demand across the country.
Following a minority stake sale which completed in November 2022, SSEN Transmission is now owned 75% by SSE plc and 25% by Ontario Teachers’ Pension Plan Board.
SSE plc sold its UK domestic electricity and gas retail business, along with domestic energy services to OVO Energy in January 2020 and no longer manages these customer accounts.
It’s the highest voltage electricity network in the UK – the ‘motorway network’ of the energy world. It transmits large quantities of electricity over long distances via wires carried on a system of mainly metal towers (pylons) and large substations. Transmission voltages in Scotland are 132kV, 275kV and 400kV. Larger generation schemes usually connect to the Transmission system.
The lower voltage parts of the system are called distribution networks. In Scotland, these local networks operate below 132kV whereas in England the distribution network includes 132kV.
As a stakeholder-led business, throughout the life of our projects, we aim to work positively with local communities and keep people informed about what we are doing. This is particularly important when we are developing new projects, we want to understand what local people think about our plans.
We always endeavour to take the time to discuss our proposals with local community councils and the wider affected community and to carry out engagement throughout each of the development stages, listening to feedback before finalising project plans. The feedback we receive is vital to help us develop proposals that reflect the views of a variety of stakeholder.
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