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German Buildings Energy Act (GEG)

German Buildings Energy Act (GEG)

The revised German Buildings Energy Act (GEG) sets new standards for energy consumption and greenhouse gas emissions in Germany's building sector, aiming for a climate-neutral building stock by 2045. It seeks to phase out reliance on fossil fuels. The GEG establishes energy performance requirements for heated or cooled buildings and consolidates several previous laws, including the Energy Savings Ordinance (EnEV), the Renewable Energy Heating Act (EEWärmeG), and the Energy Saving Act (EnEG). The legislation applies to nearly all new and existing buildings, both residential and non-residential, including public buildings.

Key changes for property owners include:
- Heating systems in new buildings must be powered by at least 65 percent renewable energy.
- From 2025, enhanced minimum standards for building automation will be mandatory for commercial buildings.
- The GEG provides incentives for heating system replacements and allows certain costs to be passed on to tenants.

To avoid penalties and value losses, the aedifion Cloud Platform aids in digital operational optimization, enhancing energy efficiency and integrating buildings into the energy transition.

Success Stories

Trinity

As one of the world’s largest real estate investment managers, AEW places great emphasis on the consistent digitalization and sustainability of its existing buildings. A prime example is the “Trinity” located in the vibrant Zollstock district of Cologne. This was made possible through a tailored digital retrofit and subsequent optimization of the system operation via a cloud platform.

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Katharinenkai

At the Nikolaifleet in the heart of Hamburg, the landmark building KATHARINENKAI was completed in March 2022, offering approximately 10 000 m² of gross floor area with a prime waterfront location. With KATHARINENKAI, a flagship project for grid-serving building operations was created. Thanks to an innovative smart building topology, all stakeholders are seamlessly integrated into the operation. The building utilizes dynamic electricity tariffs, enabling the use of aedifion demand side management.

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Portfolio Rollout of BNP Paribas REIM

BNP Paribas Real Estate Investment Management (“BNP Paribas REIM”) is one of the leading real estate investment managers in Europe, managing assets worth EUR 28.47 billion. The enhancement of property values through active asset management is a key component of the company’s objectives, which are focused on sustainability and future viability. By actively integrating the aedifion solution into BNP Paribas REIM‘s sustainability strategy, energy consumption and the carbon footprint are reduced at the portfolio level.

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