A study involved several tests conducted on nine different brands of “smart” meters, also referred to in the industry as “static energy meters”.
Researchers also used one electromechanical meter for reference… Experiments went on for six months, with individual tests lasting at least one week, and sometimes several weeks. Test results varied wildly, with some meters reporting errors way above their disclosed range, going from -32to +582 percent.
Researchers blamed all the issues on the design of some smart meters, and, ironically, electrical devices with energy-saving features. The latter devices, researchers say, introduced a large amount of noise in electrical current waveforms, which disrupt the smart meter sensors tasked with recording power consumption…
The researchers estimate that “potentially inaccurate meters” have been installed in the meter cabinets of at least 750,000 Dutch households and worldwide the figure is in the millions.
Some governments, especially in the EU, have pushed for smart meters to replace classic electromechanical (rotating disk) meters. We guess this is because they are helping their chums in the energy industry pad out their bottom lines.