SSE Renewables is a world-leading developer, operator and owner of offshore wind energy. We are building more offshore wind energy than any other company in the world right now.

In 2023, we are celebrating 20 years of offshore wind delivery.

Since we first embarked into offshore wind two decades ago with our first co-development, the 25MW Arklow Bank project in the Irish Sea, we have grown to become a world-leader in offshore wind.

In the 20 years since, we have contributed to the development and delivery of 1.5GW of installed offshore wind capacity already operating in UK and Irish waters, including the 0.5GW Greater Gabbard and the 0.6GW Beatrice offshore wind joint venture sites which we operate daily on behalf of our asset partners.

Today, we’re leading the construction of almost 5GW of new offshore wind generation, almost 200-times the capacity of the first offshore wind farm we co-developed and installed at Arklow Bank in 2003.

Our construction pipeline includes the 1.1GW Seagreen1, Scotland’s largest and the world’s deepest fixed bottom offshore wind farm, and the 3.6GW Dogger Bank2, the world’s largest offshore wind farm currently in construction, both of which represent a combined £12bn spend in infrastructure capex.

We also have the largest secured offshore wind development pipeline in the UK and Ireland at over 9GW. This includes projects such as Ossian3, our first commercial-scale venture into floating wind, and Berwick Bank which is setting new biodiversity standards.

Still in our core markets, our unrivalled 5GW future pipeline of prospects includes a potential fourth phase for the world’s largest offshore wind farm, Dogger Bank, as well as over 3GW of new capacity around Ireland at Celtic Sea Array, Setanta and Tarbert.

Internationally, we’re expanding into new markets where the offshore wind opportunity is immense and critical to achieving significant emissions reductions.

Marking 20 years in offshore wind

To mark our 20th Anniversary in offshore wind delivery, we published a report in June 2023 which outlines how we’ve progressed over the last two decades to become the company building more offshore wind energy than any other in the world right now. You can read this milestone report by clicking below.

SSER 20 Years Of Offshore Brochure


Through our construction of Dogger Bank Wind Farm, which will utilise the most powerful offshore wind turbine in operation today, GE’s up to 14MW Haliade-X, we’re setting the global standard for the delivery of new offshore wind energy projects. To find out more about the construction of Dogger Bank Wind Farm, click here.


In Scotland, we're pursuing the country's newest global-scale offshore opportunity, Berwick Bank. At up to 4.1GW, the Berwick Bank super-project development off the east coast of Scotland is one of the largest offshore developments in the world.

Berwick Bank Wind Farm is at an advanced stage of development, and in 2022 a planning application was submitted to the Scottish Government seeking consent to develop and enter construction. If approved for delivery, Berwick Bank could increase Scotland’s overall renewable energy capacity by nearly 30%, accelerating the country’s net zero ambitions.

The project will also be capable of generating enough renewable energy to power over five million homes – equivalent to all of Scotland’s households twice over. For more on how Berwick Bank can drive Scotland’s ambitions to meet its 2030 climate action targets, click here.


We’re part of a unique consortium with partners Marubeni Corporation and Copenhagen Infrastructure Partners progressing development of what could become one of the world's largest floating offshore wind sites before the end of the decade.

Our Ossian project was selected in the highly competitive ScotWind process to deliver a new floating offshore wind farm in 858 square kilometres of seabed in the Firth of Forth off Scotland's Angus Coast - one of the largest lease areas to be offered by Crown Estate Scotland to any bidder under the ScotWind process.

With average water depths of 72m, the site is suitable for the deployment of floating offshore wind turbines to deliver up to 3.6GW of new installed capacity – enough to be capable of powering almost *6 million Scottish homes annually and ^offsetting up to 7.5 million tonnes of carbon emissions each year.

The development of Ossian continues, targeting first generation before the end of the decade.

For more, click here.


We plan to bring our world-leading excellence in offshore wind energy to Irish waters with plans to deliver 4GW of offshore wind energy in the Irish Sea and Celtic Sea by 2030, including the 800MW Arklow Bank Wind Park Phase 2 off the coast of Co. Wicklow, as well as over 3GW of new capacity around Ireland at Celtic Sea Array,
Setanta and Tarbert. To find out more about how we’re 100% ready to deliver the offshore wind needed to help secure Ireland’s energy future, reduce carbon emissions and create local jobs, click here.


20 years since we first began pioneering the offshore wind revolution, we are now turning our attention to the next generation of offshore wind and to new horizons.

Building an international offshore wind pipeline in selected countries where we believe our track record and expertise can help accelerate deployment is a core part of our strategy. So too is pioneering the use of floating offshore wind technology.

In pushing these new frontiers, we want to help lead a just and fair transition to net zero. That’s why we’ve joined the Global Offshore Wind Alliance (GOWA) which brings together a growing list of countries, international organisations and developers to collaborate and share knowledge on how best to deploy offshore wind and deliver wider societal benefits.

1 Seagreen Offshore Wind Farm is a joint venture with TotalEnergies.

2 Dogger Bank Wind Farm is a joint venture with Equinor and Vårgrønn.

3 Ossian is a joint venture with Marubeni Corporation and Copenhagen Infrastructure Partners.