We are SSEN Transmission, the trading name of Scottish Hydro Electric Transmission. We are responsible for the electricity transmission network in the north of Scotland.
Headquartered in Perth, with offices in Aberdeen, Inverness and Glasgow, and staff across the north of Scotland, we own, operate and invest in the high-voltage 132 kilovolt (kV), 220kV, 275kV and 400kV network as well as High Voltage Direct Current (HVDC) assets.
Our network consists of underground and subsea cables, overhead lines on wooden poles or steel towers, and electricity substations and converter stations. It extends over a quarter of the UK’s land mass, crossing some of its most challenging terrain.
WATCH: Learn more about who we are and what we do
Our first priority is to provide a safe and reliable supply of electricity to our communities. We do this by taking electricity from existing power stations, onshore and offshore wind, solar and hydro generators and transporting it over long distances through our network for onwards distribution to homes and businesses in towns, villages and cities across Scotland and Great Britain.
We are helping to deliver Scotland and the UK’s energy security and clean power targets by investing in new and upgraded electricity transmission network infrastructure.
This is required to connect and transport more renewable energy to the grid, supporting the transition to a low carbon economy.
SSEN Transmission is owned 75% by SSE plc and 25% by Ontario Teachers’ Pension Plan Board (Ontario Teachers’).
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Sustainability
Our mission to deliver a network for net zero puts us at the forefront of sustainability. But it is really important that we deliver on our mission in a way that is fair and sustainable." We're committed to tackling climate change, restoring nature, leaving a positive legacy for communities, and growing our workforce in a way that is sustainable.
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Asset Management
Asset management is a key part of everything we do at Transmission. By coordinating our activities across Transmission, we can drive long-term, whole life value from our infrastructure assets for our customers and stakeholders. -
Innovation
Our innovation purpose is to deliver a reliable and resilient network safer, smarter, greener, and faster. We define innovation as the successful adoption of new ideas, technologies, and processes that can materially impact our strategic goals and deliver our vision.
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Our Projects
We are investing around £29bn to upgrade the network infrastructure across the north of Scotland between now and 2030 as the region plays a leading role in the clean energy transition. Explore our projects to find out more. -
Careers
We're on a mission to upgrade the network in the north of Scotland to bring cleaner energy to homes and businesses across the country. Joining SSEN Transmission is an opportunity to build a rewarding career. With hundreds of jobs available over the next 12 months, join us and help power change.
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Our Stakeholder Engagement
Being at the forefront of stakeholder engagement means actively listening to and collaborating with these diverse groups to understand their needs and concerns. This helps us build trust, make better decisions, and create value for everyone involved.
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Our Business Plan
Our RIIO-T3 Business Plan outlines our plans for April 2026 to March 2031, focusing on delivering a reliable, efficient transmission network and supporting the clean energy transition in the north of Scotland. -
Customer Connections
Making sure that generation developments can connect to our network is one of our primary responsibilities as the owner of the network in the north of Scotland and we have a huge job to do over the coming years to make sure that our network is capable of connecting the planned additional generation capacity. -
Financial Reporting and Information
Here you will find our Annual Performance Reports, Statutory Financial Accounts, Regulatory Financial Performance Reports and Charging Statements.