An Bord Pleanála has confirmed that proposed plans to establish a €650m hydroelectric pumped storage power project, to be located at the former mine site at Silvermines, Co. Tipperary, has been now been deemed developed enough to enter the permit granting process for ‘Projects of Common Interest’, latter an essential infrastructure project regarded as aimed to strengthen European energy markets, thus assisting EU energy and climate goals.
The appeals board will now evaluate the project under an EU procedure which aims to streamline the consenting process for trans-European energy projects.
This Silvermines Hydroelectric Energy Storage Project, when eventually operational, is expected to store as much as 296 Megawatts (MW), with a daily storage capacity of up to 2,175MWh of electricity, same sufficient to power 185,000 households or 21,000 small businesses daily in Ireland.
Not a new idea, but like the existing ESB Turlough Hill (292 MW) Power Plant in Co. Wicklow, first commenced in 1968, this project will see water pumped from one source, starting at ground level and delivered to a reservoir higher up, which in turn will then be released through turbines that in turn generate electricity.
The 148-hectare (366 acre) site, chosen for the project, in Co. Tipperary is situated on the Northern ridge of the Silvermines Mountain range and was first proposed initially some 9 years ago.
The project, when first made public in January of 2016, suggested that wind energy, from a wind farm on the site would be deployed at night time, during periods of less demand, to pump the water from the downhill lake to the uphill storage area.
This Silvermines Hydro project is being developed and managed by Siga-Hydro Limited, an Irish company based in Nenagh, Co. Tipperary, working with the Foresight Group, a global infrastructure investor.
Accounts for a connected firm, Silvermines Tipp Hold Co Ltd, shows that it received a capital injection of €14.5m in 2023. It is estimated that the project will create some 400 jobs during its construction phase and employ as many as 50 qualified personnel in the pumping hydro station, during its operational phase.
Following the announced permit granting procedure, An Bord Pleanála will now make a final decision on the project.
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