The implementation of voluntary collector label Solergy will enter into the second phase in 2016. The European Commission has confirmed that there was no likelihood of confusing the voluntary mark with the official energy labelling stipulated since September 2015 for heating devices across Europe, the Steering Committee of the Solar Heating Initiative said in a letter sent to selected stakeholders in the middle of December. The letter went on to explain that it would now be the responsibility of DIN Certco, the German certification body, to issue Solergy labels officially and register the certificates in an online database. During the first phase in the second half of 2015, it had been Stefan Abrecht, the initiator of the voluntary collector label and General Manager of German company Solar Experience, who had issued the certificates.
The new collector label Solergy has just been created and has already sparked a lot of debate in Germany. On the one hand, there is a growing number of collector manufacturers, associations and also the certification body DIN Certco – which are supporting the implementation of the label (see the list of logos at the beginning of November). On the other hand, there are the European bodies relevant to the solar thermal sector, such as the European Solar Thermal Industry Federation (ESTIF) and the Solar Keymark Network (SKN), which are not in favour of Solergy, although they do fancy the idea behind such a collector energy output label. To understand the reasons for the controversy, one has to look at the evolution of the label.