Energy Design & Simulation

We map your property (individual buildings, building ensembles or neighbourhoods with an energy centre) in a 3D model with internal and external shading and under realistic weather conditions and user behaviour. This provides you with the data-based foundation for reliable room temperatures, energy consumption and performance. Your benefit: A sound basis for making decisions on the selection of the most efficient heating and cooling system, the most economical ventilation concept and the most suitable façade. Reduce your investment and operating costs by up to 20 %! We offer professional building simulations for the following purposes, among others:

• Thermal comfort via hourly simulation
• Daylight simulation as well as internal and external shading
• Façade studies
• Simulation of energy consumption to determine the exact user energy requirement
• Determination of CO2 generation
• Dynamic heating and cooling load calculation
• Operational optimisation of system technology in planning and existing buildings
• Special certificates for BNB, LEED, DGNB and BREEAM, e.g. ASHRAE 90.1
• Testing for compliance with the minimum structural requirements

We focus on the energy efficiency of your building right from the start: With our integrated energy planning, we design energy-optimised districts, holistic solutions for buildings and technology through to intelligent solutions for energy centres. Our experienced energy efficiency experts carry out all building simulations in-house. The results form the basis for the energy optimisation and planning security of your projects.

When it comes to energy efficiency, we are at your side as neutral and independent consultants during project realisation. We support you from the definition of objectives and the make-or-buy decision through to professional tendering and awarding. Whether energy-saving or energy supply contracting: we are also happy to advise you on ongoing contracts or support you with regard to optimised energy procurement.

We support you in defining objectives and requirements and ensure that your project ‘stays on track’: through targeted technical controlling and ‘quality gates’ in concept, planning, tendering, execution and commissioning.

The primary aim of our building physics consultancy is to optimise the energy efficiency of the building envelope in order to increase energy efficiency and avoid structural damage. In doing so, we promote decarbonisation and analyse the savings potential to improve the thermal comfort of users. Whether new build or revitalisation, we support you in implementing sustainable efficiency standards and thus ensure future-proof buildings at the highest energy level. Our services include

• Building physics support for new builds and refurbishments
• Energy saving certificates in accordance with the current Building Energy Act (GEG 2024)
• Funding support from energy efficiency experts (EEE) in the BEG programme of KfW and BAFA
• Energy consulting for residential and commercial properties (EBN and EBW incl. iSFP)
• Expert services (saSV-SW) in accordance with GEG UVO
• Optimisation of thermal bridge connections
• Indoor climate analyses using state-of-the-art simulation software
• Summer thermal insulation in accordance with DIN 4108-2
• Energy performance certificates (demand and consumption certificates)

The acoustic properties of a building are crucial for the well-being and health of its users. Our focus here is on protection against noise from neighbouring rooms, external noise and noise from technical systems (e.g. ventilation and lift systems). Airborne and impact sound insulation that complies with regulations and standards ensures peace and quiet and undisturbed working or living in the property. We offer the following services for this purpose:

• Sound insulation certification in accordance with DIN 4109
• Sound insulation of external components
• Noise forecast (according to TA-Lärm)
• Concept development for architects and planners
• Building acoustics and sound insulation reports for LEED, DGNB, etc.
• Noise immission control (protection of the environment through noise from the property)

The need to improve room acoustics is increasing, especially in times of modern working environments with an open-plan design. This is because good room acoustics ensure cosiness, acoustic comfort and less stress. This in turn increases user productivity. Our activities here are

• Planning and construction supervision
• Advice on conversion or modernisation
• Measurement of room acoustics
• Tenant representation during relocation

We offer you customised numerical flow simulations (computational fluid dynamics) - from standard to special cases. These CFD pre-calculations save you considerable costs later on. Flow simulations can be used to determine a large number of parameters with a high local resolution for your specific requirements - such as air velocities, temperatures and humidity, but also comfort parameters such as the PPD index or the draught risk. Possible areas of application:

• Comfort simulations for users in the building, depending on heating, cooling, ventilation, type of use and site-specific weather conditions, such as solar radiation
• Comfort simulations for users in the vicinity of buildings, depending on location-specific weather data and the building environment
• Air flow simulations in production halls etc. to ensure that machine requirements are met
• Outside air flow for the influence of wind on certain areas of your building or the surrounding area
• Smoke extraction simulations for special cases to verify functionality
• Evacuation simulations to determine the evacuation time