Icax's system was tested on a section of a London street and it's being used in the roads around a school, opening this September. Icax says it has had inquiries from all over the world, especially Japan and the Gulf. The idea of capturing and storing heat energy through the ground is not a new one. Systems like this one used to heat homes have been around for thousands of years. Icax is really just rediscovering the idea and applying it to the modern problem of snow on streets.