The SolarButterfly interviewed David Oudsandji, the co-founder and CEO of Voltfang. The video was recorded in the built-in studio in Larso in Aachen on the 6th of July, on the 45th day of the SolarButterfly Climate Pioneer World Tour.

Voltfang takes used batteries from cars and repurposes them into a storage system which can store energy from solar or wind or other renewable energy.

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