As part of a controlled study by the faculty of mechanical engineering and renewable energies at the University of Applied Science Amberg-Weiden in Germany, several solarbags were tested and compared in order to determine their value for money ratio.
SunnyBAG supplied a model from their Business Collection to be part of the experiment. Among those bags being tested, SunnyBAG was the only solarbag supplier which manufactured its bags using high quality calf skin. Because of this, SunnyBAG Business Collection is sold at a higher price point. The SunnyBAG Faction collection is made from recyclded truck tarpaulin has a midrange price point. Although the materials are different, all SunnyBAG models are equipped with the same high quality solar systems.

The picture above shows the test-rig in operation during experiment in Germany where several different bags and their technologies were tested.
Findings:
Power loss (loss of performance?)
Compared to the other bags tested, SunnyBAG had the highest accordance with its listed and actual performance. Manufactures using organic or amorphous solar panels showed discrepancies of up to 40% in relation to the performance listed on their data sheets. SunnyBAG uses triple-junction-technology solar panels and only showed a maximum difference of 14%.
Longterm application test
After completing a long term simulation test in a climatized environment, it was noted that SunnyBAG's performance was positively effected. The longer a SunnyBAG is in use, the better its solar panels will peform.
As displayed in the diagram below, other solar panel technologies loose performance capacity over time.

SunnyBAG – the ideal source for mobile, intelligent and sustainable energy supply.
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