Display Energy Certificates (DECs)
What is a DEC?
A DEC shows the energy performance of a building based on actual consumption i.e. information provided in utility bills as well as the type of building energy systems employed. Whereas an EPC looks at the information relating to building design, energy equipment and system specifications.
Since 2015, larger buildings (over 250m2 ) occupied by a public authority or institution where the building is frequently visited by the public, must display an energy certificate; in England and Wales this is a DEC.
Additionally, an advisory report accompanies a DEC and contains recommendations on how to improve the energy performance rating for the building.
Where the building has a total useful floor area of more than 1,000m², the DEC is valid for 12 months. The accompanying advisory report is valid for seven years. Where the building has a total useful floor area of between 250m² and 1000m², the DEC and advisory report are valid for 10 years.
The penalty is £500 for failing to display a DEC at all times in a prominent place clearly visible to the public and £1,000 for failing to have possession of a valid advisory report. In addition to these penalties, it is still necessary to commission the documents.
How do I obtain a DEC?
An Energy Assessor, accredited to produce display energy certificates for that type of building, is the only person who can produce a DEC and Advisory Report for your building.
Firstly the energy consumption data you provide will be reviewed by the assessor in line with the approved method. Adjustments may be made for occupancy, intensity of use, special energy uses, weather and climate.
The assessor will then produce a DEC and an Advisory Report from this information in line with the approved method. The DEC will need to be lodged in a national register by the assessor and given a unique certificate reference number.
Why should I choose your company?
We offer a professional, friendly and fast service and clients are assured of high quality reports. Our fees include all expenses.