GrantedEnergyDecided 27 May 2025

Old Ashai Plant, Killala Business Park, Killala

Construction of a hydrogen plant and a 106MW gas engine energy centre in Killala.

2360266 · Mayo County Council · Lodged 10 July 2023

Reference: 2360266
Authority: Mayo County Council
Register status: Decided
Type: PERMISSION
Received: 10 July 2023

Summary

AI-generated

The proposed development consists of a hydrogen plant with a double-storey electrolyser building, storage, and filling station. It also includes an energy centre with 9 gas engines generating up to 106MW of power, housed in a 13.6m high building with two 25m stacks, alongside the demolition of existing structures.

Energyhydrogenenergyindustrialdemolition

Generated from the description above by an AI model and may contain mistakes. The council’s description is the authoritative record.

Official record

Development description

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.

The historical record

How energy applications have been decided in Mayo County Council

94% granted

of 68 energy applications granted, refused or part-granted by Mayo County Council, 2017–2026.

The same category nationally: 89%2,347
All categories in Mayo County Council: 94%9,748

These are historical figures for this category in this council area, counted from the statutory register over the last 10 years. They are not an assessment of this application and say nothing about how it will be decided.

Key dates

Timeline

Application received10 July 2023
Further information requested21 August 2023
Further information received7 February 2025
Decision due27 May 2025
Decision issued27 May 2025
Grant issued27 June 2025
Permission expiry26 June 2030

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