Sofia Offshore Wind Farm

The 1.4 gigawatt (GW) Sofia Offshore Wind Farm, sited on the shallow central area of the North Sea known as Dogger Bank, is the largest project in innogy SE’s current development portfolio. The consented project is being developed 195 km off the UK’s North East coast on a site of 593 square kilometres. It has an agreed connection point at an existing National Grid substation in Lackenby, Teesside.

Sofia Offshore Wind Farm is one of the four Dogger Bank projects that were awardedconsent in 2015. Formerly known as Dogger Bank Teesside B, the project was taken over 100% by innogy in August 2017 and subsequently renamed Sofia Offshore Wind Farm.  To view the project documents on the Planning Inspectorate website click here.

The project is currentlyprogressing through the latter stages of development and design, working closely with potentialsuppliers, stakeholders, statutory bodies and the authorities. The sheer scale and size of Sofia Offshore Wind Farm will offer significant economic opportunities for the UK with potential supply chain benefits, infrastructure and associated jobs and contracts.

Having won a Contract for Difference (CfD) in the UK Government’s 2019 auction the project will now move towards a final investment decision, expected in 2020. On the current programme, the onshore civil works for Sofia are set to start in 2021 along with fabrication of the wind farm components. Offshore construction is due to start from 2022.

In terms of components, the wind farm could comprise up to 200 turbines, offshore converter stations and hundreds of kilometres of both inter-array and export cables, as well as onshore electrical infrastructure.

Sofia project location overview map
Sofia project location overview map

Sofia Offshore Wind Farm key facts and figures:

Installed capacity

The largest project in innogy’s current development portfolio.


195km off the coast of England’s North East.

Site size

Roughly the same size as the Isle of Man.

Maximum turbine height

315m to the tip of the rotor blade.

Water depth (shallowest)

At its shallowest the water depth is 20m, the height of the Angel of the North.

Water depth (deepest)

At its deepest the water depth at the wind farm site is 35m, increasing to 80m along the export cable route.

Landfall location  

Between Redcar and Marske-by-the-Sea, Teesside.

Onshore infrastructure

A 7km cable will carry power from landfall to a new converter station in the Wilton Complex.

Grid connection

At the National Grid substation in Lackenby, Teesside.

Number of homesSofia will generate enough energy to supply approximately 1.2 million UK homes with electricity per annum.

Consent for the project was granted in August 2015.

Further information

Please contact the Communications Team, by emailing: comms_sofia@innogy.com

Send email

Or you can contact the project team by calling:  +44 330 122 9670