The Proposed Development will consist of a Hydrogen Plant and an Energy Centre.…
Old Ashai Plant , Killala Business Park , Killala
Proposed development
The Proposed Development will consist of a Hydrogen Plant and an Energy Centre. The Hydrogen Plant, to the south of the site ,will consist of a Double Storey Electrolyser Building of up to 24m height; Fin Fan Coolers of up to 10.5m height; Hydrogen Storage Area of 7m height; Hydrogen Gas Tube Filling Station of up to 9m height, Gas Injection Compound and Gas Above Ground Installation Building of 4m height; Electrical Substation up to 15m height and Ancillary Equipment Building of up to 3m height; Fire Water Tank of up to 14m height; Pump House of up to 5m height; Administration/welfare building and control block building of up to 4m height. The Energy Centre, to the north of the site, will consist of 9no. Gas Engines generating up to 106MW of power, housed in a Gas Engine Building of up to 13.6m height with two stacks of up to 25m height, Distillate fuel tank of up to 11.2m height, Firewater tank of up to 10m height, associated pumps, sludge tank of 2.1m height and Pump house of 5m Height, Electrical Building of 4m Height, Gate House of up to 4m Height, Administration/Welfare building of up to 4m Height. The Proposed Development includes the demolition and removal of the existing Asahi Plant buildings, foundations, as well as decommissioning and removal of the existing overhead, above ground drainage system and underground services. The Proposed Development will also include Resurfacing, Repair and Improvement of Existing Site Entrance and new Internal Access Roads which in turn opens onto the existing entrance road to the Ballina/Killala regional road (R314). The provision for 23 no. car parking spaces, footpaths, street lighting, external lighting, CCTV cameras, signage, security fencing, construction compound, and all other associated site development plant and equipment and other works including, utilities connections, potable water, stormwater, sewage, and foul wastewater drainage infrastructure, within a total overall application boundary of 6.88ha.
What happens next
Permission was granted on 27 May 2025. Third parties may appeal within four weeks; after that the permission is final and works can start once a commencement notice is lodged.
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About this page: the facts above come from the statutory public planning register kept by Mayo County Council and are refreshed weekly (last updated 6 Jul 2026). Applicant names and contact details are not shown. Status labels are PlanningLeads' plain-language reading of the register status and the "Use" label is classified by AI from the public description (see how we use AI); neither is legal advice and the council's file is the record. How we handle this data: privacy notice.
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