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Killala Energy Hub Case Study

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Supporting Energy Development in County Mayo

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Environmental ConsultingEnvironmental Consulting

Industry

Electric Power

Location

Ireland

The Killala Energy Hub contains a Hydrogen Electrolytic Plant and Energy Centre comprising a series of gas engines. The project supports European and National targets to reduce greenhouse gas emissions. The production of “Green Hydrogen” will assist Ireland in the transition to a low carbon economy.

The Killala Energy Hub needed to obtain advice from the HSA to support the planning application to Mayo County Council. AWN Consulting Ltd., a Trinity Consultants team, was brought in to support the design and planning processes. The major accident hazards associated with the proposed development and risk to receptors at the business park influence the scale and design of the proposed Energy Hub.

Challenge

The proposed Hydrogen Plant will produce hydrogen by the electrolysis of water and the hydrogen produced will be injected directly into the gas transmission network or removed off site by trucks with tube trailers. The Energy Centre will generate power by utilising a series of gas engines and will distribute the power generated via private wire to an end user. Due to the presence of above threshold quantities of flammable gas (hydrogen and natural gas), the proposed development will be classified as a lower tier COMAH establishment and will be subject to the provisions of the Chemicals act (Control of Major Accident Hazards Involving Dangerous Substances) Regulations 2015, which implement the Seveso III Directive in Ireland.

Solutions

AWN provided comprehensive design advice on site layout and project scale and completed a COMAH land use planning quantitative risk assessment in support of the planning application for the proposed development. Services provided include systematic hazard identification, consequence modelling of fire and explosion scenarios, modelling of risk and production of individual risk of fatality contours and societal risk assessment. AWN supported consultation with the Health and Safety Authority throughout the planning process.

Services Performed

The team performed a COMAH quantitative risk assessment, including fire and explosion consequence modeling, and provided site layout and project scale design advice. They consulted with the Health and Safety Authority and delivered regulatory support under the Chemicals Act and Seveso III Directive.

Results

The Health and Safety Authority provided favorable land use planning advice to Mayo County Council, enabling the Killala Energy Hub to move forward. The development is now designated as a lower-tier COMAH establishment and will produce green hydrogen to help Ireland transition toward a low-carbon economy. AWN’s detailed design and quantitative risk expertise were pivotal to achieving planning consent while ensuring regulatory compliance.

 

1

New hydrogen electrolytic plant approved

1

Favorable HSA land use planning decision secured

100%

Compliance with COMAH risk thresholds