Teagasc, Johnstown Castle – Building Optimisation


The castle often described as a historic, social and architectural treasure of national importance was assessed on it’s Building Energy Ratings. The detailed report identified imporvements in the castles performance to help reduce its running costs.


Wexford, Ireland
2341m sq

The Teagasc Johnstown Castle building in Wexford is 2341m2. Lighting accounts for 41% of the building’s Co2 emissions. To reduce this our engineers recommended the transfer of regular lights to LED lights and fixtures. Some spaces in the building were at high risk of overheating and therefore required immediate action. Reflective coating or shading devices were installed to windows in order to reduce large amounts of heat entering building through windows when opened for ventilation purposes.

These immediate changes drastically improved the energy efficiency of the building. 

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