Is Steorn's Orbo technology a non-polluting, supercheap source of power? Steorn emerged at the turn of the century and to date it claims to have attracted 23 million in private investment. Put at its simplest, the Orbo" technology is a non-polluting, almost cost-free source of power. It is not a battery but offers the same function. At the Steorn premises a table displays rows of heavy crimson skull-shaped boxes, known as power cubes. Each, according to the claims, holds numerous small "batteries" which recharge themselves allowing for a permanent supply of energy. Cube units retail at 1,200 and the first orders are due to arrive with buyers this month. However, the cube is not seen by the company as a mass-market product. They are simply a showcase for the technology. The real focus is on the mobile phone that never needs to be recharged. Explaining his own technology, [company founder Sean] McCarthy dismisses previous suggestions they are claiming to have developed a perpetual motion machine (a hypothetical device that works indefinitely without an apparent energy source) as there [are] no moving parts. "Technically it isn't a battery at all; you'd call it a battery substitute technology. It's something that replaces the function of the battery. It is really a generator rather than a storage device," he says.