The Sustainable Office Building
Head Office of GELSENWASSER AG
The GELSENWASSER headquarters in Gelsenkirchen, finished in 2003, combines lots of energy-saving technologies and causes very low running costs. It is a low-energy office buliding.
Its main features:
• Photovoltaic plant generating electricity
• Combined heat and power unit (CHP) using natural gas
• Heating and cooling with waste heat utilization of the CHP
• Additional use of suspended cooling ceilings, fed by
• Heat pumps with 36 ground spikes up to 150 m deep
• Glas front with inside light channeling sunblinds and
• Ventilation at night.