Richard Cannings at the Industry, Science and Technology Committee

I'm glad to hear that. You've described a system that sounds like it would be very beneficial for industry, commerce and trade. You talk about reaching that critical mass.

The question in my mind, because I know nothing about it, is this. It would save money, but what would the energy costs be if we reached that critical mass and our whole economy was running on this? Would it be a very minor addition?