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Grange Backup Power
Ireland’s first industrial-scale dual-fuel backup power station.
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Client
Confidential
Location
Grange Castle, Dublin
Sector
Energy / Infrastructure
Role
EPC Contractor
Completion
2024
Commissioned by Sustainable Development Capital LLP (SDCL), the 110MW Grange Backup Power facility is located in Grange Castle, West Dublin. This landmark development represents a new benchmark in energy security and innovation, offering rapid-response electricity to support the Irish national grid during peak demand or supply disruption.
The facility houses six MAN medium-speed reciprocating engines, each capable of generating 18.54MW – equivalent to the power needs of approximately 12,500 homes per engine. Operating primarily on natural gas with diesel as a secondary fuel, the dual-fuel configuration ensures a reliable energy supply. The plant is also futureproofed for potential operation using hydrotreated vegetable oil (HVO) as a low-carbon alternative.
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Engineering Precision and Grid Integration
Delivered under a full EPC contract, the project involved the installation of over 2,100 tonnes of engine capacity into a custom-designed, high-specification building. Each engine, weighing more than 350 tonnes, required complex logistical planning and engineering precision.
Collen’s multidisciplinary teams integrated advanced auxiliary systems, emissions control technologies and grid infrastructure within a live industrial environment, adhering to the highest standards of safety and quality throughout. The facility is equipped with state-of-the-art monitoring systems to meet stringent environmental regulations.
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Supporting Ireland’s Energy Transition
Grange Backup Power plays a strategic role in Ireland’s energy transition by stabilising supply during renewable intermittency, supporting greater integration of wind and solar generation. It demonstrates how engineering-led project delivery can enable low-carbon energy resilience at scale.
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