This video illustrates the COMPLETE stoppage of an electricity meter (check the video till the end)with a hi-power appliance still being plugged-in and working. Hair drier (or actualy it can be any power-appliance) is used solely for demonstration purpose. On some occasions, the meter may even go backward depending if the sigh of a "pinion" in the botom right corner of the meter is present. Please do not be confused, and don't try to blow away the meter readings as it won't work.
Please visit cutyourbill.org to get the detailed description, practical implementation and picture report.