I’m confused as to how we are supposed to have faith that smart energy meters are accurate – there’s very little information out there about how they work.
I searched the sub and previous threads about smart meters don’t have any scientific explanations, mostly just the social/practical issues of phasing out old meters and retrofitting new ones.
Filing under Technology but this could be physics or engineering I suppose
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Twinkle twinkle little star, `V` is equal to `IR`. Therefore you can determine the current flowing through a junction of known resistance by measuring the voltage drop across the junction.
That’s it, that’s the whole thing. Since your electricity is metered by the current used, you can observe the current flowing through the single junction that supplies all of the power in your home and determine the home’s use. Add it up over a period of time and you know how many units of power to bill for. Now all you need is a way to communicate between the meter and the guy who sends out the bills, and in the old days, that was a “meter reader” who would come out and read the tally off your meter. Now the meters digitally send the reading back to the power company.
Gas meters are the same deal, even easier because you’re measuring the rate of flow of a fluid – you just have the fluid turn a little wheel, and you count the number of times the wheel spins.
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