Energy performance certificate: the key to your building's energy efficiency

1 Definition of an energy performance certificate

An energy performance certificate serves as an informative energy passport that clearly shows the energy efficiency of a building. This document makes it easier for potential buyers or tenants to compare the energy efficiency of different properties. The energy band tachometer, which shows the final and primary energy requirements in different colors on the first page, is particularly striking. The more the displays are in the green zone, the more energy-efficient the building is.

2. Necessity of an energy performance certificate

Since 2008, it has been mandatory to have an energy performance certificate if you want to rent or sell a property. An energy performance certificate is also required for new buildings, and a comprehensive renovation of your property may also require a new certificate, especially if an overall energy balance is necessary. The certificate must be presented at viewings, as clearly required by the Building Energy Act.

3. Types of energy certificate

There are two main types of energy certificate: the consumption certificate and the demand certificate. The consumption certificate is based on actual energy consumption and is easier and cheaper to produce, while the demand certificate provides more detailed information as it is based on the physical characteristics of the building and often requires an on-site inspection.

4. Persons responsible for issuing

Only qualified professionals are authorized to issue an energy certificate. These include architects, civil engineers, energy consultants and qualified tradespeople such as chimney sweeps. You can find specialists through organizations such as the German Energy Agency or the Chambers of Architects and Engineers.

5. Cost of an energy performance certificate

The cost of an energy performance certificate varies depending on the type and scope of work required. A consumption certificate can cost between 50 and 100 euros, while the demand certificate is more expensive due to its complexity and can cost between 300 and 500 euros.

6. Significance of the values in the energy certificate

The energy certificate provides information on important aspects such as the thermal insulation of the building envelope and the energy efficiency of the system technology. New certificates contain a registration number for verification by the German Institute for Building Technology and energy efficiency classes that represent the energy quality.

7. Important information for owners

As an owner, you need an energy certificate if you want to rent or sell your property, or for documentation in the event of modernization work. Make sure that the issuer of the certificate is qualified in order to avoid liability issues in the event of incorrect information.