About Customer Connections
Welcome to the home of customer connections at SSEN Transmission.
Making sure that generation, storage and demand development can connect to our network is one of our primary responsibilities as the owner of the electricity transmission network in the north of Scotland. We have a vital job to do over the coming years to make sure that our network is capable of connecting planned additional generation capacity.
Following Ofgem’s approval of NESO’s Connections Reform proposals, we will be working with NESO and our customers to deliver the new connections process, which supports the delivery of Government’s Clean Power 2030 (CP30) Plan.
Information for New Customers
We’re here to help guide you through the process from initial enquiry to energisation. This section provides everything you need to understand how to apply, what to expect, and the key steps involved in connecting your project to our transmission network.
Information for Existing Customers
Whether you need to make changes to an existing agreement, access key documents, or get support with an ongoing project — you’ll find relevant updates, resources, and guidance here.
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Information for customers with existing applications
The first stage of Connections Reform is a one-off exercise (known as Gate 2 to the Whole Queue, or G2tWQ) involving the reassessment of all existing contracted projects in the connections queue.
Existing projects must achieve the new Gate 2 criteria to remain eligible for a place in the queue. The new connections process is a move away from the old ‘first come, first served’ approach.
The purpose of the criteria is to ensure that projects in the queue are needed (in order to achieve Government’s Clean Power 2030 Plan) and can demonstrate ‘readiness’.
NESO has created a Readiness Declaration Template to help customers prepare for their application. This needs to be completed and signed to declare and evidence that each project is ‘Gate 2 ready’, and eligible for a place in the new connections queue.
NESO has also published an Evidence Handbook to give detailed instructions on how to complete your application.
Our embedded Distribution customers with small and medium projects can now submit their G2tWQ applications to SSEN Distribution, while large embedded projects and Transmission customers will be able to apply directly to NESO from 8th July 2025. Both evidence portals for DNOs and NESO will close in August 2025 (exact date to be confirmed).
Further information, including FAQs on G2tWQ, can be found on NESO’s Connections Reform page.
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