Smart energy meter shows energy generation instead of consumption

An energy meter indicates that hundreds of watts are generated but in reality a small amount of power is consumed. This can happen using the combination of a dimmer and some household equipment, which together only consume about twenty watts. Depending on the actual setting of the dimmer, the energy meter gives the correct read-out, a consumption that is twenty times higher, or even hundreds of watts of generated power. Researchers from the University of Twente will present and explain this effe...