Thanks to a new prototype, powering up a cell phone can simply mean using heat from the feet. The catch is it takes a lot of walking.
European telecommunications company Orange is displaying a new phone-charging prototype in a pair of rubber boots. The company is unveiling a set of Wellington Boots that have a "power generating sole" that converts heat from the feet into electrical power to charge battery-powered handheld appliances.
The boots were created in collaboration with renewable energy experts GotWind. They came about through Orange's efforts to find alternative, sustainable and eco-friendly mobile phone charging technologies. The boots are debuting at the Glastonbury Festival of Contemporary Performing Arts, where patrons can check them out.
GotWind explains that the power is collected through a process called the "Seebeck" effect. Thermoelectric modules created from pairs of "p-type and n-type semiconductor materials" are located inside the power-generating sole. They form thermocouples that are connected to other thermocouples and placed between two thin ceramic wafers.
Heat from the feet are applied to the top side of the water and cold is applied to the bottom side from the cold of the ground, causing electricity to be generated.
The company states that 12 hours of stomping should produce enough power to charge a phone for an hour. Hotter feet mean more energy
Orange stated in a press release that the Orange Power Wellie follows other innovations created for use at the festival.
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