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Ireland’s ESB has opened a battery energy storage system at its Poolberg site in Dublin. Operational since November, the battery plant is capable of providing 75 MW of energy for two hours to Ireland’s electricity system. It features high-capacity batteries that store excess renewable energy for discharge when required.
Fennell Photography The ESB has opened a major battery plant at its Poolbeg site in Dublin which will add 75MW (150MWh) of fast-acting energy storage to help provide grid stability and deliver more renewables on Ireland’s electricity system.
The biggest operator is ESB, which owns the current largest operating battery in Ireland – the 150 MW Aghada 2 project. ESB also owns the 19 MW Aghada 1 battery, the 73 MW Poolbeg battery, and the Kylemore and South Wall BESS which are both 30 MW. Many of ESB’s BESS are on existing sites where it owned thermal or flex gen assets, said Smith.
Smith pointed out that Ireland’s energy storage strategy, published in 2024, was “quite positive.” A lot of high-level plans and a technology agnostic outlook. “Unfortunately, we haven’t seen a lot of progress on those actions which is a problem we are trying to address,” said Smith.
