Ofgem launches ownership tender for Seagreen's transmission link

4C Offshore | Tom Russell
By: 18/01/2022 Ofgem
Ofgem is inviting tenders to own and operate the transmission link which connects Scotland’s largest offshore wind farm, Seagreen, to Great Britain’s mainland energy network.

The OFTO assets to be tendered include offshore and onshore substations and cables connecting the wind farm to the mainland near Carnoustie in Angus.


An OFTO launch webinar will be held on Thursday 20 January from 9.30am to 11am, and will include contributions from Ofgem and from Seagreen. The webinar is open to all and stakeholders are invited to register online.


Akshay Kaul, Director of Networks at Ofgem, said: “Connecting offshore wind farms such as Seagreen helps harness the power of North Sea wind to keep the lights on and deliver sustainable and affordable energy.


“As the government seeks to realise its net zero ambitions a key part of Ofgem’s job is to ensure the costs of transitioning to green energy are kept as low as possible for consumers. Our OFTO tender regime does exactly that delivering on both sustainability and affordability for Britain’s consumers.”


Once completed in late 2022/early 2023,
Seagreen will consist of 114 Vestas V164-10.0 MW turbines, the first of which was installed in December 2021. Situated around 27km off the Angus coast, the £3bn wind farm is a joint venture between SSE Renewables (49%) and TotalEnergies (51%). At 1.1 GW, Seagreen is Scotland’s largest renewable energy project. The wind farm is expected to be capable of generating around 5,000 GWh of renewable energy annually, enough electricity to power more than 1.6m UK homes.

Energy regulator Ofgem runs tenders to own and operate connections to offshore wind farms to cut costs for consumers. This will be the ninth tender round it has conducted under its offshore transmission owner (OFTO) regime, which has so far secured owners and operators for 23  offshore wind farm connections.

Since Ofgem and the government launched the OFTO regime in 2009, winning bidders have so far invested over £6 billion in links connecting 9.5 GW of offshore wind farms.