Energy Performance & Display Energy Certificates
Helping to understand the efficiency of your buildings
What is an Energy Certificate?
Energy Certificates help understand how efficient a building is, similar to how home appliances have an efficiency rating.
The certificates use a rating scale, which is between A and G to measure a buildings energy efficiency. ‘A’ rated buildings are the most efficient whereas ‘G’ rated buildings are the least, certificates are issued after an inspection of building by a certified Energy Assessor.
What our clients think
“Trident are our preferred contractor for DEC and EPC surveys. They were selected following a competitive quotation process and the work was completed in a timely, professional manner with a full report and supporting information.”
Deputy Maintenance Manager - Hertsmere Borough Council
Where are Energy Certificates required?
If you own, lease or are looking to sell commercial buildings, there is a legal requirement to have an Energy Certificate on display to showcase the energy performance as well as the emissions of the building.
Having this certificate ensures the appropriate information about the efficiency of the building is available to owners, prospective buyers, and tenants.
There are two types of Energy Certificates which cover different aspects of a buildings efficiency. The two energy certificates differ in terms of the information they provide but can contribute to achieving a similar goal.
Energy Certificates help businesses reduce their carbon footprint. Once you understand how efficient your buildings are you can start to make efficiency improvements based on the recommendations provided. This will lead to significantly reducing your carbon emissions and lower energy costs.
Types of Energy Certificate
DECs:
A DEC is a Display Energy Certificate and has been a requirement for all public buildings to have since 2008. A DECs focal point is the energy performance in terms of how much gas and electricity is consumed annually within the building.
A DEC rating is known as an ‘OR’ which stands for ‘operation rating’, public buildings will require a DEC annually if all the following criteria is met:
- Exceed an area of 250m2.
- Occupied by public authorities.
- Provides a public service to a large amount of people – meaning they are frequently visited.
In terms of how long the DEC is valid for, buildings within 250m2 – 1000m2 are valid for 10 years and any buildings in excess of 1000m2 are valid for only one year.
A key feature of a DEC is that an advisory report (AR) will be produced, which outlines saving opportunities. However, buildings with a floor area of over 1000m2 means the AR is valid for seven years, but below that and above 250m2 the AR is valid for ten years along with the DEC.
EPC/NDEPCs:
An EPC/NDEPC is an Energy Performance Certificate. The ND stands for non-domestic which applies to buildings like supermarkets, hospitals, factories, and restaurants which fall under the non-domestic building classification.
Certificates are required for all commercial (non-domestic) buildings that exceed 50m2. Certificates consist of two components – a graphic rating and a recommendations report.
The rating calculation is done by assessing the performance of the services within the building (such as heating, AC units, lighting) – also known as an asset rating.
An EPC also includes a potential rating that could be achieved for a building, if the efficiency recommendations within the report are addressed.
The two energy certificates differ in terms of the information they provide but can contribute to achieving a similar goal.
Energy certificates help businesses reduce their carbon footprint. Once you understand how efficient your buildings are you can start to make efficiency improvements based on the recommendations provided. This will lead to significantly reducing your carbon emissions and lower energy costs.
Types of Energy Certificates
DECs:
A DEC is a Display Energy Certificate and has been a requirement for all public buildings to have since 2008. A DECs focal point is the energy performance in terms of how much gas and electricity is consumed annually within the building.
A DEC rating is known as an ‘OR’ which stands for ‘operation rating’, public buildings will require a DEC annually if all the following criteria is met:
- Exceed an area of 250m2.
- Occupied by public authorities.
- Provides a public service to a large amount of people – meaning they are frequently visited.
In terms of how long the DEC is valid for, buildings within 250m2 – 1000m2 are valid for 10 years and any buildings in excess of 1000m2 are valid for only one year.
A key feature of a DEC is that an advisory report (AR) will be produced, which outlines saving opportunities. However, buildings with a floor area of over 1000m2 means the AR is valid for seven years, but below that and above 250m2 the AR is valid for ten years along with the DEC.
EPC/NDEPCs:
An EPC/NDEPC is an Energy Performance Certificate. The ND stands for non-domestic and applies to buildings that fall under the non-domestic building classification including supermarkets, hospitals, factories, and restaurants.
Certificates are required for all commercial (non-domestic) buildings that exceed 50m2. Certificates consist of two components – a graphic rating and a recommendations report.
The rating calculation is done by assessing the performance of the services within the building (such as heating, AC units, lighting) – also known as an asset rating.
An EPC also includes a potential rating that could be achieved for a building, if the efficiency recommendations within the report are addressed. Once a building has an EPC, the certificate is valid for 10 years.
The two energy certificates differ in terms of the information they provide but can contribute to achieving a similar goal.
Energy certificates help businesses reduce their carbon footprint. Once you understand how efficient your buildings are you can start to make efficiency improvements based on the recommendations provided. This will lead to significantly reducing your carbon emissions and lower energy costs.
Types of Energy Certificate
EPC/NDEPCs
An EPC/NDEPC is an Energy Performance Certificate. The ND stands for non-domestic and applies to buildings that fall under the non-domestic building classification including supermarkets, hospitals, factories, and restaurants.
Certificates are required for all commercial (non-domestic) buildings that exceed 50m2. Certificates consist of two components – a graphic rating and a recommendations report.
The rating calculation is done by assessing the performance of the services within the building (such as heating, AC units, lighting) – also known as an asset rating.
An EPC also includes a potential rating that could be achieved for a building, if the efficiency recommendations within the report are addressed. Once a building has an EPC, the certificate is valid for 10 years.
DECs
A DEC is a Display Energy Certificate and has been a requirement for all public buildings since 2008. A DECs focal point is the energy performance in terms of how much gas and electricity is consumed annually within the building.
A DEC rating is known as an ‘OR’ which stands for ‘operation rating.’ Public buildings will require a DEC annually if all the following criteria is met:
- Exceed an area of 250m2.
- Occupied by public authorities.
- Provides a public service to many people – meaning they are frequently visited.
In terms of how long the DEC is valid for, buildings within 250m2 – 1000m2 are valid for 10 years and any buildings in excess of 1000m2 are valid for only one year.
A key feature of a DEC is that an advisory report (AR) will be produced, which outlines saving opportunities. However, buildings with a floor area of over 1000m2 mean the AR is valid for seven years, but below that and above 250m2 the AR is valid for ten years along with the DEC.
EPC/NDEPCs
An EPC/NDEPC is an Energy Performance Certificate. The ND stands for non-domestic and applies to buildings that fall under the non-domestic building classification including supermarkets, hospitals, factories, and restaurants.
Certificates are required for all commercial (non-domestic) buildings that exceed 50m2. Certificates consist of two components – a graphic rating and a recommendations report.
The rating calculation is done by assessing the performance of the services within the building (such as heating, AC units, lighting) – also known as an asset rating.
An EPC also includes a potential rating that could be achieved for a building, if the efficiency recommendations within the report are addressed. Once a building has an EPC, the certificate is valid for 10 years.
DECs
A DEC is a Display Energy Certificate and has been a requirement for all public buildings since 2008. A DECs focal point is the energy performance in terms of how much gas and electricity is consumed annually within the building.
A DEC rating is known as an ‘OR’ which stands for ‘operation rating.’ Public buildings will require a DEC annually if all the following criteria is met:
- Exceed an area of 250m2.
- Occupied by public authorities.
- Provides a public service to many people – meaning they are frequently visited.
In terms of how long the DEC is valid for, buildings within 250m2 – 1000m2 are valid for 10 years and any buildings in excess of 1000m2 are valid for only one year.
A key feature of a DEC is that an advisory report (AR) will be produced, which outlines saving opportunities. However, buildings with a floor area of over 1000m2 mean the AR is valid for seven years, but below that and above 250m2 the AR is valid for ten years along with the DEC.
How Trident can help?
Continued compliance and carbon support
Our compliance team has been working with customers for many years ensuring they meet their energy compliance requirements and supporting their journey toward a zero-carbon future.
Experienced engineering capability
Our in-house engineers are certified Energy Assessors, who are competent in conducting the relevant building inspections to have both an EPC and DEC issued for businesses. Additional work such as submetering, equipment upgrades, and changes can also be carried out by our engineers.
Supporting efficiency improvements
Once we issue the energy certificates, we can assist your business further by helping with the efficiency recommendations from the energy certificate reports.
How Trident can help?
Our compliance team has been working with customers for many years ensuring they meet their energy compliance requirements and supporting their journey toward a zero-carbon future.
Our in-house engineers are certified Energy Assessors, who are competent in conducting the relevant building inspections to have both an EPC and DEC issued for businesses. Additional work such as submetering, equipment upgrades, and changes can also be carried out by our engineers.
Once we issue the energy certificates, we can assist your business further by helping with the efficiency recommendations from the energy certificate reports.