Display Energy Certificate (DEC)

From 1 January 2009, all public buildings with a gross internal floor area greater than 1000m² are required to display a Display Energy Certificate in a prominent place clearly visible to the public. This requirement is a consequence of the transposition into Irish legislation of Article 7(3) of the Energy Performance in Buildings Directive.

The DEC for large public buildings is calculated as an operational rating, where the actual energy consumed in the building is compared to a benchmark for buildings of the same type, and shown on the certificate A-G scale in terms of primary energy. There is also a CO₂ indicator which shows the CO₂ emissions associated with the building's energy consumption.

To find out more contact Building Science Technologies and one of our SEI registered assessors can help you with your queries.