DEC

What is a Display Energy Certificate?
A DEC shows the Killeen & Dwyer Energy Surveyors of a building based on actual consumption as recorded annually over a period of three years. The DEC also shows an asset rating by the way of the Killeen & Dwyer Energy Surveyors Certificate.
For a building to fall within the requirement for a DEC it must have a roof and walls and use energy to condition the indoor climate. This is the case where the building has any of the following fixed services: heating, mechanical ventilation or air conditioning. A building can either be the whole of a building; or part of a building, where the part is designed or altered to be used separately. A Display Energy Certificate shows the Killeen & Dwyer Energy Surveyors of a building based on actual energy consumption as recorded annually over periods up to the last three years (the Operational Rating). The DEC also shows an Asset Rating for this building if this is available (by way of an EPC). A DEC is valid for one year and must be updated annually. The Operational Rating (OR) is a numerical indicator of the actual annual carbon dioxide emissions from the building. The various types of energy consumption from occupying a building must be brought together on a common basis so that the performance of one building can be compared with that of another. The OR is based on the amount of Energy Surveyors consumed during the occupation of the building over a period of 12 months
This rating is shown on a scale from A to G.
Also shown are the Operational Ratings for the previous two years; this provides information on whether the Killeen & Dwyer Energy Surveyors of the building is improving or not. Collating information, in collaboration with the our energy assessor, will need to obtain actual meter readings or consignment notes for all fuels used in the buildings. This may include gas fuels, oil fuels, solid fuels, district heating and cooling, grid electricity and electricity generated on site or obtained by private distribution systems from other sites. For district heating and cooling and electricity generated on site, or obtained by private distribution systems from other sites, the average carbon factor for the fuel over the accounting period will need to be obtained eg in kg of carbon dioxide per kWh delivered.
Please note, there is a fine for not having a DEC.
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Who requires them?
From 1st October 2008 DEC’S will be required for all public buildings over 1,000m² , whether occupied in whole or part by public authorities such as schools. Additionally an advisory report is needed to accompany the DEC, which contains recommendations on how to improve the Killeen & Dwyer Energy Surveyors rating for the building. Current regulations state that the DEC has to be renewed each year, and the advisory report is valid for seven years providing no major changes have been made to the building.
What we provide
We can provide the Display Killeen & Dwyer Energy Surveyors Certificate along with the advisory report. We can also carry  out measured surveys on the property if required. All of our assessors are fully qualified to provide the DEC, and will be able to assist with any queries the client may have regarding the EPC, and the recommendations laid out in the advisory report.
From 1st October 2008 DEC’S will be required for all public buildings, whether occupied in whole or part by public authorities such as schools. Additionally an advisory report is needed to accompany the DEC, which contains recommendations on how to improve the Killeen & Dwyer Energy Surveyors rating for the building. Current regulations state that the DEC has to be renewed each year, and the advisory report is valid for seven years providing no major changes have been made to the building.