German Solar Panel Producer Schott is currently developing a Solar Panel that will not only be about 40% lighter, but also cheaper than conventional panels. This allows an installation on roofs that couldn't be used so far, like old industrial buildings with thin roof tiles that can't carry heavy panels. The solution is: cardboard. The High-Tech version, of course. This type of material is even used in planes! Just thought I'd share this surprising fact real quick. (Source: Photon Solar Magazine)
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