Ørsted in Ireland

An exciting opportunity for homegrown offshore wind

Headquartered in Denmark, Ørsted is a global leader in offshore wind, with activities primarily in Europe but also in the Asia-Pacific region and the USA.

 

Across Ireland, we have been known since 2021 for our ownership of 20 onshore wind farms. In 2025, a new offshore-focused business strategy included divestment of our onshore assets in Ireland and our office in Cork.

In 2023, however, Ørsted and ESB entered into a partnership to jointly develop a pipeline of offshore wind development projects off the Irish coast. The partnership has the potential to deliver up to five gigawatts (GW) of renewable energy.

Provisional rights to develop the Tonn Nua site

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At Ørsted, we see Ireland as particularly well-positioned to benefit from offshore wind. We are very pleased that, in November 2025, the Irish Department of Climate, Energy and the Environment provisionally awarded Ørsted and our joint venture partner ESB the rights to develop an offshore wind farm at the Tonn Nua maritime site off the coast of County Waterford.

Offshore wind turbines standing in the sea under a cloudy sky, with a faint horizon glow in the distance

The Tonn Nua site is still in an early phase of development, but a final investment decision is expected around 2031 – with power generation from the mid-2030s. When completed, the Tonn Nua project will mark an important step in the country’s transition to renewable energy.

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Good for Ireland, good for the world

Ørsted operates some 30 offshore wind farms today – mostly in Europe but also in other parts of the world. Our projects help countries reduce carbon emissions, while also protecting marine biodiversity. Our offshore wind farms also benefit communities by creating jobs, building local expertise, and via wide-ranging community impact work.

Learn more about Tonn Nua and Ørsted

To find out more about the Tonn Nua project and Ørsted in general, feel free to explore the links below.

Two wind turbine technicians in safety helmets and harnesses standing on top of an offshore turbine

Provisional award of Tonn Nua project

Ireland’s Department of Climate, Energy and the Environment has provisionally awarded Ørsted and ESB the rights to develop an offshore wind farm at Tonn Nua.
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Why offshore wind

Offshore wind provides what imported fuels can’t and delivers benefits ranging from enhanced energy security and stable prices to job creation and reduced CO2 emissions.
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Who is Ørsted

With over 30 years of experience, an installed capacity of 10.2 GW, and 8.1 GW under construction, Ørsted is the global leader in the growing field of offshore wind energy.
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Explore our wind farms

Curious about our existing offshore wind farms? This informative page shows where our farms are located and provides detailed information about every site we operate.