Willem Kesteloo, winner 2016

“My window generates electricity”

Willem Kesteloo (NL), co-founder PHYSEE, won €500,000 in the Postcode Lottery Green Challenge 2016. PHYSEE’s windows boast the first fully transparent energy-generating glass. A coating collects light that would normally be reflected, and solar cells in the frame convert it to electricity.

“In addition to the huge injection of capital from the competition, the associated exposure and network we have gained are many times more valuable.”

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