How to Trick Your Electrical Meter By Saving Power | Hackaday
"A group of Dutch scientists have been testing out some of today’s “smart” electrical meters to check their accuracy, among other things.
Not ones to disappoint, the scientists have found consistently false readings that in some cases are 582% higher than actual energy consumption.
Well, “results varied wildly, with some meters reporting errors way above their disclosed range, going from -32% to +582%.
...“The greatest inaccuracies were seen when researchers combined dimmers with energy saving light bulbs and LED bulbs.”..."