Efficient, eco-friendly, exemplary: The municipal energy supplier badenova once again received the best „Platinum“ award 2021 issued by the DGNB (German Sustainable Building Council) for the new building 4 which they had recently erected in Freiburg in southwest Germany. With an 86.8% degree of fulfilment, badenova could even exceed the result of building 3 which was awarded in 2014 with an 82.5% degree of fulfilment. Both buildings were fully connected to one another during the construction works, also in regard to the energy flows.
To acquire a DGNB award with Platinum standard, among other attributes, an ambitious energy concept is required. The new building is, for example, equipped with a modern ventilation system which replaces a conventional chiller. The required heat is generated (together with electricity) by our biomethane powered compact CHP unit GG 70 which was delivered in 2014 and is combined with an efficient heat recovery system. The comprehensively controllable building component activation system provides best comfort throughout all seasons and minimises energy consumption. Moreover, a very high proportion of the building material is demountable and recyclable. Roughly 340 employees work in a completely pollutant-free building and are supplied with 34,000 m³ of fresh outside air per hour.
Over the past five years the CHP unit achieved a high average utilization rate of 6,300 h per year and operated with an excellent availability rate of 98.8%. We are very pleased by this award, congratulate badenova and are proud to know that our CHP unit could make a contribution to this success.
Further information about the award and the building (in German) can be read here on the badenova Website.