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These Transparent, Solar Power-Generating Windows Are The World's First


A tech startup on a mission to make modern commercial and housing estates energy neutral has outfitted the headquarters of a Dutch bank with the world's first commercial, fully transparent solar-power-generating windows.

The windows have solar cells installed in the edges at a specific angle that allows the incoming solar light to be efficiently transformed into electricity.

"Large commercial estates consume a lot of energy," said Ferdinand Grapperhaus, co-founder and CEO of the startup, called Physee. "If you want to make these buildings energy-neutral, you never have enough roof surface. Therefore, activating the buildings' facades will significantly contribute to making the buildings energy-neutral."

The windows could generate 8 to 10 watts of power, according to Grapperhaus.

"This enables the user to charge a phone per every square meter [11 square feet] two times a day," he told Live Science.

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