Partnering with Ørsted to deliver the Tonn Nua offshore wind farm
In partnership with Ørsted, we were provisionally awarded the rights to develop the Tonn Nua site off the coast of County Waterford by The Department of Climate, Energy and the Environment (DCEE).
Currently in an early phase of development, once completed the site will span 306 square kilometres with expected capacity output of approximately 900MW, enough energy to power almost one million homes based on the wind prevalence in the area.
Read the press release
Our Generation Portfolio
Moneypoint coal cessation
Jan 30, 2026, 12:27 PM
We are continuing the transformation of our Moneypoint power station in Co Clare into a renewable energy hub with the end of coal generation earlier than planned, representing a significant milestone in our net zero carbon strategy.
Moneypoint will remain a key site for ESB and for the Mid-West region as the station evolves and transforms to support the Irish government to achieve its climate targets.
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Moneypoint coal cessation
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After 40 years, we end coal generation at our Moneypoint power station
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More than 25 years of expertise of onshore wind
Since 1998, starting with our 5MW wind farm in Crockahenny in Co Donegal, we’ve built an onshore wind portfolio supplying nearly 850MW of clean energy in Ireland and the UK.
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Growing our battery storage facilities
We are at the forefront of developing battery systems, supporting the decarbonisation of Ireland's electricity system. We currently have more than 300MWs of battery storage capacity in operation in Ireland, making it one of the largest battery portfolios in Europe.
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Our hydrogen ambitions
We believe hydrogen produced from renewable electricity will play a critical role in the decarbonisation of many sectors. We plan to use our existing capabilities and future renewable growth to become a leading player in large scale renewable hydrogen production, thereby enabling renewable electricity, in the form of electrons or green modules, to meet the energy requirements of Ireland’s future zero carbon economy.
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Investing in offshore wind energy
Offshore wind is playing a major role globally in our fight against climate change and our transition to a zero carbon economy.
We have been involved in offshore wind since 2017 with a number of planned projects for Ireland and the UK.
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