Display Energy Certificates

Display Energy Certificates (DEC’s)

Why DECs are required

 The purpose of introducing DECs is to raise public awareness of energy use and to inform visitors to public buildings about the energy use of a building. DECs provide an energy rating of the building from A to G, where A is very efficient and G is the least efficient and are based on the actual amount of metered energy used by the building over the last 12 months within the validity period of the DEC.

An affected organisation must display a DEC in a prominent place clearly visible to the public and have in its possession or control a valid advisory report. The advisory report contains recommendations for improving the energy performance of the building.


Buildings requiring a DEC

 A DEC and advisory report are required for buildings with a total useful floor area over 250m2 that are occupied in whole or part by public authorities and frequently visited by the public.


DEC’s can:

Improve energy efficiency by implementing recommendations in the Advisory Report. We aim to exceed minimum requirements and offer useful recommendations from the Advisory Report that apply to the relevant site.

Act as a mechanism for setting energy efficiency targets and allow clients to actively monitor energy consumption and encourage improvements.

Provide an opportunity to publicly demonstrate good energy performance.


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