About Sofia Offshore Wind Farm

Key facts and figures about one of the world’s largest offshore wind farms


Sofia will be one of the largest offshore wind farms in the world as well as one of the farthest from shore. Technically it will be a major engineering feat, drawing on long-term offshore wind heritage and on our suppliers’ technological expertise. It will implement many of the innovations and advances made by the offshore wind sector as it has grown in size and sophistication over the past few years.




Installed capacity

The largest project in innogy's development portfolio


Site size

Roughly the same size as the Isle of Man


Maximum turbine height

To the tip of the rotor blade


Deepest water depth

At the wind farm site


Distance from shore

East of Teesside, North East of England


Distance from shore to landfall

To connection point at Teesside



Sofia Offshore Wind Farm is currently 100% owned by RWE. In line with the company’s strategy for offshore wind, it is likely investment partners will be sought when the project is sufficiently matured.




In 2009, RWE joined forces with three other leading international energy companies - SSE, Statoil (now Equinor) and Statkraft - to bid for a Zone Development Agreement as part of The Crown Estate’s third licence round for UK offshore wind farms (Round 3).

January 2010

In January 2010, following a competitive tender process, The Crown Estate announced that Forewind had been awarded development rights for the largest zone: Dogger Bank.


In 2015 the Secretary of State awarded development consent orders to four projects, each with a proposed installed capacity of 1.2GW. These were Dogger Bank Creyke Beck A, Dogger Bank Creyke Beck B, Dogger Bank Teesside A and Dogger Bank Teesside B.

March 2017

In early (March) 2017, Statkraft decided to leave Forewind. SSE and Equinor took the opportunity to increase their shares to 37.5% each, with RWE (innogy) retaining a 25% share.

August 2017

In August 2017, the remaining three Forewind partners agreed on how best to further progress the development of the four consented projects, with RWE taking full ownership and control of Dogger Bank Teesside B. SSE and Equinor together progress the other three projects.

December 2017

Dogger Bank Teesside B was re-named Sofia via an internal competition and in December 2017, the new name Sofia Offshore Wind Farm was registered at Companies House.


The year 2019 saw two major successes: when an application to increase the installed capacity to 1.4GW was approved and when the project won a Contract for Difference in the UK Government's competitive auction round, greenlighting the team to progress the project.

June <span>2020</span>

June 2020

A preferred supplier agreement is signed with Siemens Gamesa for 100 of their recently launched SG 14-222 DD turbines. 

July 2020

July 2020

Sofia announces its preferred suppliers for the HVDC transmission system are GE's Grid Solutions and Sembcorp Marine.