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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

Aghada

Feb 23, 2022, 16:18 PM
Title : Aghada
Location : Co. Cork
Select a choice : Thermal
Latitude : 51.8350360
Longitude : -8.2280290

Fuel: Natural Gas and Distillate

Capacity: 963MW

Commissioned: 1980 and 2010

Technology:

1 x 270MW Alstrom gas-fired conventional steam turbine (1980)

3 x 90MW Alstrom Frame 9B, dual fuel open cycle gas turbines (1980s)

1 x 435 MW Alstrom single shaft combined cycle gas turbine (2010)


Aghada was built close to the entrance of Cork Harbour in order to use gas discovered in the nearby Kinsale Gas Field. The station started operating in 1980 and has grown over the years to feature three different types of technology (see above).

Taking 30 months to build, the latest combined cycle gas turbine plant is one of the most efficient and cleanest plants in Europe, capable of generating enough electricity to supply approximately 8% of power demand in the Single Electricity Market (Island of Ireland).

With its combination of three types of generating technologies (open cycle gas turbines, steam turbine and combined cycle gas turbine) Aghada is extremely flexible and important to our generation portfolio.

Aghada

Apr 1, 2025, 21:25 PM
We currently have more than 300MWs of battery storage capacity in operation in Ireland, making it one of the largest battery portfolios in Europe.
Title : Aghada
Display title : New battery plant at Aghada, Co Cork
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Developing and acquiring 1.2 GW of solar energy by 2030

Solar is increasingly central to our net zero energy ambitions. We aim to develop and acquire 1.2 GW of solar by 2030 and continue to develop our growing solar energy portfolio, partnering with others to help deliver this.

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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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Our people working in generation

Meet Joe Shinkwin, Onshore Wind Project Director in our Generation and Trading business. Joe shares how the projects he works on not only deliver clean energy but also create a community benefit fund to support local initiatives. At ESB, we’re investing in renewable energy to help reach net zero emissions, and we’re proud of the people making it happen.

Our people working in generation video