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Orange reveals its mobile phone charging wellies

First a tent, and now wellies. About a month ago we blogged about Orange’s Solar Concept Tent, a solar-powered tent which has WiFi and underfloor heating. Now, Orange has unveiled a prototype of a mobile phone charging welly, dubbed Orange Power Wellies.

The wellies have been designed specifically to help Glastonbury festival goers remain in touch with their friends and family by ensuring that their mobile if fully charged for the duration of the festival.

The Orange Power Wellies use a unique ‘power generating sole’ that converts heat from your feet into an electrical current. This ‘welectricity’ can then be used to recharge your mobile phone. Orange, the official communications partner for the Glastonbury festival, will be showcasing the Orange Power Wellies prototype at this year’s event.

So, how does it work? A phone can be plugged into the power output at the top of the welly and use the energy generated throughout the day to charge the phone. The power collected in the ‘power generating sole’ is collected via a process known as the ‘Seebeck’ effect. Inside the power generating sole there are thermoelectric modules constructed of pairs of p-type and n-type semiconductor materials forming a thermocouple. These thermocouples are connected electrically, forming an array of multiple thermocouples (thermopile). They are then sandwiched between two thin ceramic wafers. When the heat from the foot is applied on the top side of the ceramic wafer and cold is applied on the opposite side, from the cold of the ground, electricity is generated.

According to the company, twelve hours of stomping through the Glastonbury Festival in your Orange Power Wellies will give you enough power to charge a mobile phone for one hour.