Open Neutral
Senior Member
- Location
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- Engineer
https://www.utwente.nl/en/news/!/20...x-times-higher-than-actual-energy-consumption
Some electronic energy meters can give false readings that are up to 582% higher than actual energy consumption.
This emerged from a study carried out by the University of Twente (UT), in collaboration with the Amsterdam University of Applied Sciences (AUAS). Professor Frank Leferink of the UT estimates that potentially inaccurate meters have been installed in the meter cabinets of at least 750,000 Dutch households. The is published in the scientific journal ‘IEEE Electromagnetic Compatibility Magazine’.
.....
The greatest inaccuracies were seen when dimmers combined with
energy saving light bulbs and LED bulbs were connected to the
system. According to Mr Keyer (lecturer Electrical
Engineering at the AUAS and PhD student at the UT) "OK, these
were laboratory tests, but we deliberately avoided using
exceptional conditions. For example, a dimmer and 50 bulbs,
while an average household has 47 bulbs." The inaccurate
readings are attributed to the energy meter's design, together
with the increasing use of modern (often energy-efficient)
switching devices. Here, the electricity being consumed no
longer has a perfect waveform, instead it acquires an erratic
pattern. The designers of modern energy meters have not made
sufficient allowance for switching devices of this kind....
Comment:
There was/is considerable consumer ...resistance... to the meter changeover. Some of that were people concerned about RF radiation from the meters.
Setting that controversy aside, there were also howls about higher bills from some; those people's concerns were dismissed as well. Looks like they may well have a case worth looking into.....
Some electronic energy meters can give false readings that are up to 582% higher than actual energy consumption.
This emerged from a study carried out by the University of Twente (UT), in collaboration with the Amsterdam University of Applied Sciences (AUAS). Professor Frank Leferink of the UT estimates that potentially inaccurate meters have been installed in the meter cabinets of at least 750,000 Dutch households. The is published in the scientific journal ‘IEEE Electromagnetic Compatibility Magazine’.
.....
The greatest inaccuracies were seen when dimmers combined with
energy saving light bulbs and LED bulbs were connected to the
system. According to Mr Keyer (lecturer Electrical
Engineering at the AUAS and PhD student at the UT) "OK, these
were laboratory tests, but we deliberately avoided using
exceptional conditions. For example, a dimmer and 50 bulbs,
while an average household has 47 bulbs." The inaccurate
readings are attributed to the energy meter's design, together
with the increasing use of modern (often energy-efficient)
switching devices. Here, the electricity being consumed no
longer has a perfect waveform, instead it acquires an erratic
pattern. The designers of modern energy meters have not made
sufficient allowance for switching devices of this kind....
Comment:
There was/is considerable consumer ...resistance... to the meter changeover. Some of that were people concerned about RF radiation from the meters.
Setting that controversy aside, there were also howls about higher bills from some; those people's concerns were dismissed as well. Looks like they may well have a case worth looking into.....
