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
ESB Sustainable Rivers Strategy
Apr 8, 2026, 15:59 PM
We have a legal duty to manage, protect and preserve the fisheries on the rivers where we generate hydroelectric power.
Our Sustainable Rivers Strategy 2030 is a long-term framework for managing the rivers and lakes associated with hydroelectric operations in the River Shannon, Erne, Liffey, Lee and Clady/Crolly, and is aligned with our Net Zero by 2040 strategy and relevant EU regulations.
This Sustainable Rivers Strategy will improve river connectivity, support native fish populations, enhance habitats near our hydro sites and benefit local communities.
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ESB Sustainable Rivers Strategy
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ESB Sustainable Rivers Strategy
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