Completion: 2014
General Contractor: Bouygues Construction
water savings after renovation: 66%
% of façade covered with „double skin” system: 88%
photovoltaic panel area: 21 500 sqm
The overarching goal was to create a more pleasant work environment for over 3 200 employees. It led to the renovation of office spaces, parking lots as well as thermal and acoustic insulation of the building.
Out of concern for the environment most of the glazed façades have been replaced with a ventilated façade in the double skin system. Additionally, it was decided to relocate electricity production – Challenger currently uses solar and geothermal energy. It was awarded the BBC (low-energy buildings), which is very rare in the case of renovation (Challenger was originally built in 1988). The facility uses a constant earth temperature using 75 geothermal sensors placed at a depth of 100 meters. In addition, Challenger’s self-sufficiency and energy efficiency increase the innovation of photovoltaic technology. Around 21 500 sqm of hybrid photovoltaic panels have been deployed around the building. Water consumption has been reduced by the creation of 2 800 sqm of filter gardens.
The internal installations have been designed for our employees and in consultation with them. Individual lighting, glazed partitions, automated blinds with anti-reflective coating, more ergonomic relaxation zones and 400 additional parking spaces have been created.
