Certified Sustainable is how the Witteburg company works. In 2016, Wittebrug obtained the Certified Sustainable Plus certificate, which has been successfully extended every year. Corporate social responsibility and working with respect for the environment are normal practices at Wittebrug. In recent months, we have been in talks with the Witteburg company to achieve energy savings in various areas. From electric heating of complete company buildings to workplaces. In addition, batteries and grid congestion are also being considered. We have heated various workplaces with the S+ panels and office panels.