Most drivers know approximately how much petrol their cars use on average. The consumer takes note of the efficiency rating of a fridge or washing machine at the latest when about to buy one. Yet more often than not no objective information is available on the energy quality of a residential building, despite the fact that most of the energy consumed in Germany is used for heating and hot water generation in private households.
state: 18.06.2018 12:03:01
Created on: 23.08.2010 14:44:11