Converting a standard office building into a ‘green building’ is a complex and costly process. Often, it is impossible to achieve the switchover in one go, which was also the case with APK Vorsorgekasse. That is why we decided to implement it in small steps. Standing idly by was never an option for us.
Use of latest technologies has enabled us to reduce electricity consumption by more than 80%. Before, annual consumption amounted to 50,000 kWh, now it is down to just 9,000 kWh. The resulting annual energy saving is therefore 41,000 kWh or 24,000kg of CO2 per year.
Sun control and shading
Keeping office buildings cool in summer is energy-intensive. Besides, air conditioning – even with modern devices – puts a permanent strain on the employees’ health. The sensible thing is to keep summer temperatures where people enjoy them, namely outdoors. This is achieved through outside shading, which stops over 90% of the heat rays from getting into offices. In conjunction with a smart control system, which constantly ensures optimum efficiency of outside shading by responding to the position of the sun, temperature and wind speeds, it both enhances the wellbeing of employees and lowers our energy bills.
Subjective perception of air quality in offices is by no means a substitute for objective measuring of the most important factors, such as temperature, humidity and CO2 pollution. The project ‘Good Air Quality’ has helped us to achieve significant improvements through minor modifications to offices (plants) and practical tips on correctly airing the rooms.
Over a number of weeks, a consulting firm analysed electricity consumption by APK Vorsorgekasse AG premises. At weekends, during holidays and outside office hours, a central master switch cuts out all those hardly noticed energy wasters which, in stand-by mode, guzzle electricity unnecessarily.