What does a DEC look like?
An example of what a DEC might look like is shown to the right – a full version is also available to download at the bottom of this page. The Operational Rating is a numerical indicator of the actual annual carbon dioxide emissions from the building. This Rating is shown on a scale from A to G, where A is the lowest (best) and G is the highest (worst). Also shown are the Operational Ratings for the last two years; this provides information on whether the energy performance of the building is improving or not. The Advisory Report will contain recommendations for improving the energy performance of the building. A DEC is valid for 12 months and needs to be updated annually. The accompanying Advisory Report is valid for 7 years.
