Geyssel GmbH Gebaüude


The ground floor is equipped with a holographic lighting system which was specially designed at the Cologne Polytechnic (Prof. Dr. Gutjahr, Prof. Dr. Müller). Depending on the amount of available daylight, the system provides extra artificial light. In addition to the reduction in energy costs, the whole space is illuminated in a reflection-free light (500-1000 Lux).

>>Due to its innovative daylight technology, the Geyssel office building was added to the case studies list by the IEA, Task 21 “Daylighting in Buildings” international energy agency for further observation and measuring.<<
(information brochure with pictures, pdf)

Environmental conservation

Our building is equipped with sun collectors for generating heat and rainwater collection containers. The environmentally-friendly cellulose insulation material “Isofloc” was used as heat insulation whilst the courtyard was paved using a rainwater permeable material (“Geopor”, RCL).

For more information about the lighting control system:
Energieagentur NRW (pdf)

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