Whilst the research of the Orange and GotWind team is still in its infancy and continues to be developed. Orange has built fully functioning prototype models of the Dance Charge that will be tested at this year’s Glastonbury Festival, taking place at Worthy Farm in Pilton, Somerset from 27-29 June.

The Dance Charge prototype weighs in at only 180grams and measures 4¼” x 2½”, approximately the same size as a pack of cards and the same weight as a mobile phone. The Dance Charge unit comes encased in an elasticated, black, neoprene strap with Velcro attachments which is attached over the wearer’s bicep in a similar fashion to a runner’s arm-mounted mp3 player.

As the user moves their arms along to the music – a specially designed system of weights and magnets, similar to that found in kinetic energy watches, creates an electrical current which provides a top-up of charge to a storage battery. So whilst festival goers are out dancing to their favourite bands, the charger stores dance generated power in the reservoir battery, ready for when they return to their tent each night to recharge their phone.