Offshore wind power in the UK

Equinor has long experience with wind power in the UK, having already built and put into operation Sheringham Shoal, Dudgeon and Hywind Scotland, the world’s first floating offshore wind farm. Now we’re partnering with SSE Renewables and Eni to deliver Dogger Bank – the world’s biggest offshore wind farm and an important milestone in delivering UK’s Sector Deal ambitions and decarbonisation goals.  

Building a broad North Sea energy hub

To become a global offshore wind major we have a value-driven strategy, underpinned by creating scale in regional clusters. Here we present our renewable vision for the North Sea.

Dogger Bank

Dogger Bank is a joint venture between SSE Renewables (40%), Equinor (40%) and Eni (20%)* and is being built in three equal phases of 1.2 GW, Dogger Bank A, B and C.
* Eni already has 20% stake in Dogger Bank A and B. Its 20% stake in Dogger Bank C is expected to close in Q1 2022.

Full blown: building the world’s
largest offshore windfarm in the UK

Soon, Dogger Bank will be home to the world’s largest offshore wind farm, capable of producing a whopping 3.6GW of electricity, enough to power 5 million homes, or about 5 per cent of total UK demand.

Hywind Scotland

The world’s first floating wind farm, the 30 MW Hywind Scotland pilot park, has been in operation since 2017, demonstrating the feasibility of floating wind farms that could be ten times larger.

Equinor and partner Masdar invested NOK 2 billion to realise Hywind Scotland, achieving a 60—70% cost reduction compared with the Hywind Demo project in Norway. Hywind Scotland started producing electricity in October 2017.

Each year since Hywind Scotland started production the floating wind farm has achieved the highest average capacity factor of all UK offshore windfarms, proving the potential of floating offshore wind farms.

Facts about Hywind Scotland

  • The world’s first floating offshore wind farm, with 5 turbines
  • Pilot park covering around 4 square kilometres
  • Installed capacity: 30 MW
  • Diameter 154 m
  • Maximum height, base to turbine: 253 m
  •  Water depth: 95-120 m
  • Spar-type substructure
  • Standard offshore wind turbine
  • Powering ~20,000 UK homes
  • Export cable length: Ca. 30 km
  • Average wave height: 1.8 m

Suitable for harsh conditions, simple 3-line mooring system, patented motion control reduces fatigue, increases production

“Much of the knowledge we have acquired over the course of almost fifty years of oil production can be used in our wind power projects.”

Stine Myhre Selås, structural engineer in Equinor

As the only floating offshore wind farm with years of operational experience, Equinor has collaborated with others to gather data from the unique asset, and trial new methods to understand more around how floating offshore wind interacts with the environment and other marine stakeholders:

This is how the wind turbines are positioned in the water offshore Peterhead. They are anchored up with three suction anchors each, and linked together to send the electricity produced onshore

Our commitment to local communities
We aim to create lasting value for local communities through our business activities. Our contribution may include direct and indirect local employment, local procurement of goods and services, local infrastructure development and capacity-building as well as social investments. For Hywind, we aim to use local constructors and supply chain whenever possible.

We’re sharing Hywind Scotland operational data for the benefit of suppliers and academia:

Sheringham Shoal (UK)

Sheringham Shoal marked the first stepping stone on our renewables journey. Our first full scale commercial offshore wind farm is located 17 to 23 km off the coast of Norfolk in the UK and became operational in 2011. Each of the 88 wind turbines has a capacity of 3.6 MW and the wind farm as a whole generates enough electricity to power around 280,000 British homes. The project is operated by Equinor on behalf of its partners Equitix Offshore 5 (co-owned by Equitix and the Renewable Investment Group TRIG) and a fund managed by Macquarie Asset Management).

Dudgeon (UK)

The Dudgeon Offshore Wind Farm is located 20 miles off the coast of Cromer in North Norfolk, and has an installed capacity of 402 MW, sufficient to power approximately 430,000 UK homes. Dudgeon offshore Wind Farm is jointly owned by Equinor, China Resources and Masdar of Abu Dhabi. This new wind farm began production in 2017.