DEC Legal Requirements

By 1st October 2008 public sector occupiers of larger buildings, will need to have presented a Display Energy Certificate (DEC) in a prominent place clearly visible to the public.

A DEC may only be issued by an accredited energy assessor. It shows the energy performance of a building based on actual energy consumption (Operational Rating) as recorded annually over periods up to the last three years. A Display Energy Certificate (DEC) needs to be updated each year.

New arrangements have now been announced that allow a single site based DEC and AR can be produced to cover all qualifying buildings on the whole site. Please see our DEC FAQ page or contact us for more information.

A DEC must be accompanied by an Advisory Report (AR) lists cost effective measures to improve the energy rating of a building. An Advisory Report is valid for 7 years.

Please see our DEC Downloads section for more useful information.

"We have used Clouds Environmental on several occasions they have always delivered a professional yet simplistic service with knowledgeable and friendly staff at a competitive price."
Steve Vincent-Marshall, Estates Manager, Barton Peveril College.