- May 11, 2008
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It is so weird that we have all these smart energy meters in the Netherlands (and perhaps the same issue is present in several other countries) but as it turns out... There is a lot of discrepancy between the actual amount of power used, and the measured and registered amount of power or even the perceived power generation instead of power consumption.
These kinds of smart meters are often used in household situations where power is consumed to the grid, but also can be delivered to the grid when for example solar panels combined with inverters capable of delivering to the grid are used.
Or in situations where thers is only power consumption form the grid... But wait what happens when we get weird current spikes combined with weird moments in the sinewave period, awkward phases. Smart meters go haywire, register too much power consumption or even register power generation.
Excerpt of the text :
"
The latest results within the MeterEMI project, published by the University of Twente, have shown an interference case in a household situation resulting in a perceived power generation by a smart meter. This perceived power generation has occured in a house in the Netherlands with no power generating equipment such as solar panels, wind mills or any other. The peculiar situation took place after installing a remote controlled COTS (commercial off the shelf) on-off switch behind a television set, which was used to turn the television set completely off, reducing energy leakage coming from the standby mode. During the time the television set was switch on, the total household consumption dropped significantly and even reached negative values, thus "generating" power! The consumption of this household, visualized using the Dutch platform "www.slimmemeterportal.nl", can be seen in Fig. 1.
"
The site in dutch :
www.engineersonline.nl
The site translated in English:
www-engineersonline-nl.translate.goog
Image with dutch text. Translate the site for explanation
These kinds of smart meters are often used in household situations where power is consumed to the grid, but also can be delivered to the grid when for example solar panels combined with inverters capable of delivering to the grid are used.
Or in situations where thers is only power consumption form the grid... But wait what happens when we get weird current spikes combined with weird moments in the sinewave period, awkward phases. Smart meters go haywire, register too much power consumption or even register power generation.
"
The latest results within the MeterEMI project, published by the University of Twente, have shown an interference case in a household situation resulting in a perceived power generation by a smart meter. This perceived power generation has occured in a house in the Netherlands with no power generating equipment such as solar panels, wind mills or any other. The peculiar situation took place after installing a remote controlled COTS (commercial off the shelf) on-off switch behind a television set, which was used to turn the television set completely off, reducing energy leakage coming from the standby mode. During the time the television set was switch on, the total household consumption dropped significantly and even reached negative values, thus "generating" power! The consumption of this household, visualized using the Dutch platform "www.slimmemeterportal.nl", can be seen in Fig. 1.
"
The site in dutch :
Geld verdienen met een slimme energiemeter - Engineers Online
Eerder werd er al gepubliceerd over foutieve uitlezingen van statische energiemeters door elektromagnetische interferentie, gecreëerd door moderne energiezuinige belastingen met een niet-lineair gedrag. Dit kan resulteren in een foutief gemeten energieverbruik en dus een te hoge of te lage...
www.engineersonline.nl
The site translated in English:
Geld verdienen met een slimme energiemeter - Engineers Online
Eerder werd er al gepubliceerd over foutieve uitlezingen van statische energiemeters door elektromagnetische interferentie, gecreëerd door moderne energiezuinige belastingen met een niet-lineair gedrag. Dit kan resulteren in een foutief gemeten energieverbruik en dus een te hoge of te lage...
www-engineersonline-nl.translate.goog
Image with dutch text. Translate the site for explanation
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