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Sustainable buildings

By 2045, the building stock in Germany is to become climate-neutral. By using IoT technologies and smart solutions, it is possible to implement decarbonization measures in such a way that the CO2 balance of your entire real estate portfolio improves in the long term.

Do you know how to sustainably reduce your building's CO₂ emissions?

Optimising the building stock has the potential to significantly reduce our environmental footprint. The goal is to create sustainable buildings. Our holistic solutions ensure long-term energy efficiency and CO₂ reduction over the entire life cycle of your building. As your reliable solution partner, we accompany you from the analysis of the current situation to

the conception and planning to the implementation of measures and continuous monitoring. Together, we will put your building on the path to decarbonization.

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4 steps to a sustainable building

Create a roadmap & collect data

Define strategy and roadmap based on a decarbonization study. Gain transparency on energy/CO2 emissions: Collect, visualize and analyze building and energy data.

Reduce energy requirements

Increase energy efficiency and reduce consumption: Optimize and modernize systems, increase plant efficiency in HVAC, lighting, compressed air, heating, cooling, etc.

Electrify the energy supply

Intelligent solutions for local, sustainable energy supply: electrification of the heat supply, self-supply, use of energy storage

Continuously improve

Integrate and optimize solutions beyond net-zero, e.g. intelligent charging infrastructure, controlling & monitoring, in order to manage sustainability in the long term.

Transparency and optimization through energy data management

The digital recording and visualization of your building data creates transparency about the current condition above your systems. Through the targeted analysis of energy and operating data, we identify efficiency potential in order to optimize building operation and sustainably reduce energy consumption and CO₂ emissions – regardless of the age and condition of the buildings. With comprehensive energy data management, we develop optimization measures and implement them together with you. Continuous monitoring ensures the long-term optimisation of the entire real estate portfolio and compliance with your specific requirements.

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Optimizing Energy Costs Guide

Improve energy efficiency and reduce costs – with proven practical examples and clear recommendations for action.

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Legislation from EnEfG to GEG – climate-friendly and compliant

Digitalisation and the increasing demand for sustainability have significantly changed the requirements for buildings. Laws and directives such as the GEG (Building Energy Act), EnEfG (Energy Efficiency Act) and the EU Sustainability Reporting Directive (CSRD) are increasing the pressure on building operators. Our intelligent solutions, cloud platforms, IoT technologies, AI-powered solutions and digital services help you meet these regulatory requirements while optimizing building operations.

Downloads & events

    Reports and Documents

    Smart Infrastructure Transition Monitor 2025
    Based on a survey of 1,400 executives in 22 countries, this report provides insights into the progress of the energy transition in the energy sector, cities and industries.
    Learn more

    Reduce operating costs, optimize building performance
    Learn how to make your buildings more efficient and sustainable – from data collection to efficiency measures and sustainable energy supply. Our brochure shows how you can reduce operating costs and optimize your building operations.
    Download brochure

    Driving and implementing decarbonisation
    Our solutions and services cover all areas of buildings, from intelligent building automation to sustainable energy supply and provision. Work with us to develop the roadmap to decarbonize your building stock. We support you from conception to successful implementation.
    Download Onepager

    Whitepaper

    Guideline "Optimising energy costs"
    We will show you how to improve energy efficiency and reduce costs in the long term – with proven practical examples and clear recommendations for action.
    Download Whitepaper

    White Paper: Decarbonizing the Real Estate Sector
    Demand for sustainable commercial real estate is increasing worldwide because companies are increasingly having to pay attention to ESG criteria. The white paper explains the measures and solutions that make buildings more climate-friendly and how you can implement "net zero" step by step.
    Download Whitepaper

    FAQ: Sustainable Buildings

    What distinguishes a sustainable building?

    A sustainable property is a building that is planned, built and operated taking into account ecological, economic and social aspects. The aim is to minimise the consumption of resources and reduce environmental impact and at the same time achieve economic efficiency. There is great potential in the building sector in particular, as they are responsible for a significant proportion of total energy consumption and CO₂ emissions in Germany.

    A sustainable building goes beyond the goal of zero emissions. It is smart and networked and operates efficient building management with the help of state-of-the-art technologies. For example, such buildings use smart systems to control lighting, heating and cooling, and they integrate renewable energy, reducing energy consumption. Continuous analysis of energy data helps to reduce the environmental footprint and operating costs. At the same time, the comfort and health of the residents is improved. Platforms such as Building X can support this by unifying the various aspects of building management and thus reducing complexity.

    What is decarbonization?

    Decarbonization refers to the process of reducing or completely avoiding CO₂ emissions, especially in the energy supply, industry, mobility and building sectors. The goal is to replace fossil fuels such as coal, oil and gas with climate-friendly alternatives in order to limit global warming and achieve climate goals (e.g. the Paris Agreement). Decarbonisation is an important part of creating a sustainable, low-emission future.
    Decarbonisation succeeds when fossil fuels are replaced, including the use of renewable energies, the decentralisation of energy supply and the use of energy storage, the reduction of energy consumption by increasing energy efficiency, and the electrification of heat and mobility.
    We are happy to support you in this. We analyze the current situation, determine the appropriate measures and implement them together with you.

    How does decarbonization work?

    In practice, decarbonization is not a simple process, but requires a holistic approach. Such a sustainable transformation can only succeed on the basis of strategic and long-term planning. A well-thought-out decarbonisation strategy in which all measures are coordinated with each other helps here. In the first step, it helps to record all the measures to be implemented in a decarbonization roadmap. It is important to collect, visualize and analyze all relevant energy and building data. Concrete measures can only be derived on the basis of building and energy data management. Then it is necessary to reduce energy demand and implement intelligent solutions for a local, sustainable energy supply (for example, with the help of energy storage systems and the electrification of the heat supply). Conclusion: Successful decarbonization takes place through various measures and technologies that together minimize or replace the use of fossil fuels.

    What are the biggest emitters of CO₂?

    Buildings are among the largest emitters of CO₂, along with the energy sector, industry, transport and agriculture. Within buildings, heating and air conditioning as well as hot water production and lighting cause the most CO₂ emissions. Heating and air conditioning often account for the largest share, as many buildings still use fossil fuels such as oil or gas. There are various solutions to improve the CO₂ balance. First, an energy data management system was to create transparency about energy consumption in order to be able to derive optimization measures.

    Then the best kilowatt hour is the one that is not consumed in the first place. Energy consumption can be significantly reduced by implementing measures to increase energy efficiency and optimised, cross-system system control. With cross-discipline energy efficiency solutions, you can reduce your CO₂ emissions (and energy costs) in the long term.