our technology reporter shona mccallum has been finding out more. the world to use this type of heating and cooling system. and i've managed to get exclusive access. you and ijust standing here right now, we're generating about 100, 150 watts of energy. when you start dancing, let's say, medium pace, like rolling stones or something, you might be generating, like, 250 watts. and then if you've got, like, a big dj, absolutely slamming basslines and making everyonejump up and down, you could be generating 500 or 600 watts of thermal energy. and that heat is then captured from the dance floor, and transferred to a series of 200 metre deep boreholes, which can be charged like a thermal battery. the body heat system is being turned on at a party. and what better way than an event honouring a dance that originated in scotland? the slosh. and with every step, each person is their own generator of renewable energy, which you can see using this any development is... there's risk attached to it. and when you're putting in a system, which is the first time eve