GEG
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We are your experts for preparing the public-law GEG certificate for both residential and non-residential buildings.
Our service includes detailed analyses of thermal insulation, system technology and the integration of renewable energies. With our expertise, we not only ensure compliance with statutory regulations, but also optimise the energy efficiency of your building.
– Energy counselling
What is a GEG certificate?
The Building Energy Act (GEG) is a German law that came into force on 1 November 2020. It combines and replaces the previous Energy Saving Act (EnEG), the Energy Saving Ordinance (EnEV) and the Renewable Energies Heat Act (EEWärmeG). The GEG regulates the energy requirements for buildings and contains provisions on the overall energy efficiency of new and existing buildings.
A “Building Energy Act certificate” refers to proof of compliance with the energy requirements in accordance with the GEG. This proof is required when a new building is constructed or an existing building is extensively renovated. Proof is usually provided in the form of an energy performance certificate, which contains various energy parameters for the building. There are different types of energy performance certificates, including the demand certificate and the consumption certificate.
The demand certificate takes into account the energy characteristics of the building itself, such as the insulation, the heating system and the windows. The consumption certificate is based on the actual energy consumption data from recent years.
The certificate serves to ensure that the energy standards of the Building Energy Act are met in order to improve the energy efficiency of buildings and reduce energy consumption. This contributes to climate protection and the achievement of national and international energy efficiency targets.
Everything important at a glance
Residential buildings:
New residential buildings must comply with the strict requirements of the Building Energy Act (GEG), formerly known as the Energy Saving Ordinance (EnEV). This requires a certificate from the building authority, which includes a comprehensive calculation of the energy quality of the building envelope and the system technology for heating and hot water. The minimum thermal insulation and summer thermal insulation must also be verified. Our services also include detailed building physics calculations, including thermal bridge planning. These calculations can then serve as the basis for potential KfW subsidies.
Non-residential buildings:
For commercial and industrial buildings that are heated (such as offices, production halls or warehouses, supermarkets, etc.), the requirements of the GEG also apply. This requires the submission of a certificate to the building authority, which includes the calculation of the energy quality of the building envelope and the system technology for heating, air conditioning, hot water and lighting in accordance with DIN V 18599. Minimum thermal insulation and summer thermal insulation must also be verified. Our services here also include detailed calculations, including critical thermal bridges. This verification serves as a basis
Basic consideration:
The actual energy requirements of a building can be influenced by various factors such as user behaviour or production processes, which makes precise forecasts difficult. However, with an individual and innovative energy concept for your building, your ideas will be realised in the best possible way. On this basis, we carry out further calculations in the area of systems engineering in order to enable profitability analyses and develop energy-efficient solutions. We integrate holistic aspects such as sustainability, ecology, well-being and modern building technology into our concepts.
During the concept development process, we work closely with all those involved in the project and with you in order to incorporate your wishes and ideas into the process. The design of the building has a decisive influence on energy consumption and long-term energy costs. Subsequent changes to the building envelope or building technology are often associated with high costs. It is therefore advisable to consider the most cost-effective long-term option during the planning phase, even if this means a higher initial investment.
The satisfaction of our customers is our top priority. We work closely with you to ensure that your expectations are met.
Your advantages with us
Our expertise for you
Many years of extensive experience in the construction industry!
25 years of experience in the construction industry. Over 7500 successful funding applications.
Over 2000 construction projects per year.
Comprehensive advice, planning and support.
With us, you have a contact partner for your wishes and ideas, from the design to the completion of your building project.
Guaranteed maximum funding!
Thanks to our TK Academy, we are always up to date with the latest information on the best possible subsidies.
Apply for a renovation roadmap now!
Secure an extra 5% subsidy
Individual refurbishment proposals to reduce your energy costs
Profitability comparison with regard to the upcoming CO2 tax
Personal advice with up to 80% state funding
Frequently asked questions
We answer for you
What is the Building Energy Act?
The Building Energy Act (GEG) is a German law that came into force on 1 November 2020. It combines and replaces the previous Energy Saving Act (EnEG), the Energy Saving Ordinance (EnEV) and the Renewable Energies Heat Act (EEWärmeG). The GEG regulates the energy requirements for buildings and contains provisions on the overall energy efficiency of new and existing buildings.
What is a GEG ("Building Energy Act certificate") certificate?
A “Building Energy Act certificate” refers to proof of compliance with the energy requirements in accordance with the GEG. This proof is required when a new building is constructed or an existing building is extensively renovated. Proof is usually provided in the form of an energy performance certificate, which contains various energy parameters for the building. There are different types of energy performance certificates, including the demand certificate and the consumption certificate.
The demand certificate takes into account the energy characteristics of the building itself, such as the insulation, the heating system and the windows. The consumption certificate is based on the actual energy consumption data from recent years.
The certificate serves to ensure that the energy standards of the Building Energy Act are met in order to improve the energy efficiency of buildings and reduce energy consumption. This contributes to climate protection and the achievement of national and international energy efficiency targets.
How can a building owner fulfil the requirements of the GEG and increase the energy efficiency of their building?
Building owners can fulfil the requirements of the GEG by adopting energy-efficient building standards and technologies. This can include improving thermal insulation, using efficient heating and ventilation systems and utilising renewable energies. Energy consulting plays a decisive role in developing customised solutions and making optimum use of subsidies. Refurbishment measures should always take into account the economic benefits and individual circumstances.
