TU Dublin Grangegorman

15MW Energy Centre for Technological University in Dublin

of MEP services prefabricated offsite


prefabricated plantroom modules in total


Grangegorman, Dublin

Project Value:



Education, District Heating

Project Status:



15MW LTHW Modular Energy Centre

Project Overview

Alternative Heat were engaged by Grangegorman Development Agency to design, fabricate, install and commission an Energy Centre at the former St Brendan’s Hospital in central Dublin, to provide full LTHW provision through a DHN to the redeveloped 73-acre site, with uses including residential, commercial and a new campus for Tecnological University Dublin.

Alternative Heat’s in-house design team undertook full responsibility for all structural, mechanical and electrical calculations, with integrated heat load, emissions and fuel requirement modelling to derive the optimum package for the site-specific operational conditions, ensuring full compliance with local building control regulations.

Plantroom structure comprised 7No. 13.5 x 3.5m strutural modules, to enable ease of transportion and offloading on site.

All plantroom modules were fully prefabricated within Alternative Heat’s fabrication facilities, and comprised 5No. 2907kW gas boilers, 1No. 8,000L buffer vessel, 6No. 6,800L spill and fill tanks, along with district pump sets and fully integrated BMS controls.