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Poland, Certification

Three labels in Europe – what are the differences?

Submitted by Baerbel Epp on June 22, 2018
collector labels Solergy (left) and Solar Keymark (centre top) as well as the EU Energy Efficiency label (right)Labels and trademarks should give the end-consumer a clear feedback on the quality and performance of the labelled product. Currently there are three labels available for solar products or solar assisted heating systems in Europe, so there is an increasing need to explain the differences to market players as well as customers. The chart above shows the two voluntary collector labels Solergy (left) and Solar Keymark (centre top) as well as the EU Energy Efficiency label (right) which is obligatory for water, space and combi heaters under the Energy Labelling (ELD) and the Ecodesign (EDD) Directives  since September 2015. 

Solar Keymark: Additional Table Allows Comparison of Annual Collector Output

Submitted by Baerbel Epp on October 1, 2012

The Solar Keymark certification is getting more consumer-friendly: Since the beginning of this year, the new certificate data sheets include a second page on the annual collector unit output for different solar radiation sites in Europe (Stockholm, Davos, Würzburg and Athens). The list shows the output at average collector temperatures of 25, 50 and 75 °C. For example: The new optimised Aqua Plasma collector 19/17 by German collector producer Ritter achieves 1,106 kWh per collector unit and year in Würzburg (50 °C). The gas-filled flat plate collector PS1-52 Joule by Austrian company Geo-Tec achieves 793 kWh at the same location. Both collectors were launched this year with a gross collector area of 1.69 m² and were presented at the Intersolar Europe in June. The listed output should now give end consumers a good hint at what they get for their money.

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