This Little Box Could Save You 25 Percent Of Your Electric Bill! Really?
Categories: Gadgets, Energy
This is an interesting tech concept - using a capacitor to regulate the power draw on certain devices in your home, and thereby save energy. It has captured some media attention through the years. Whether the technology is suppressed, considered scammy, or simply poorly promoted is unknown, but the more I browse, the more good reports I find on it. Have a look for yourself and see what you think.
Dig around online and see if you believe the claims. They don't cost much, so it might be worth a home trial if it really could save 25% on the electric bill! I have often thought that the use of many capacitors acting almost like a battery system could regulate power usage and balance the start load for refrigerators and A/C systems. It appears that's what this is supposed to do. I don't know if it's big enough to make a huge difference, but that's what they claim about the Powersaver 1200
This review sourced from Amazon: I don't have this model, but I do have a Powersave 1200 which is similar. I read all of the "it doesn't work vs it does work" comments, so I'll add my 2 cents worth. After installing my unit, I ran a daily two month test, to measure the devices affect on amps. Since I don't know of any way to easily measure watts at the power panel, which is how electricity is billed where I live, I measured amps and volts. However, watts can easily be calculated using the formula of Volts X Amps = Watts; both of which are easy to measure with a multimeter. I used a clamp on multimeter and measured the volts and amp draw on both sides of my power panel with the device turned off, then immediately turned on.
Over the two month period, the weather varied tremendously, so the amp draw jumped around greatly depending upon what devices were running at the time. It was very clear that the device was impacting the amp draw on my panel. On the left side the amp draw average for the two months was 19.6 amps with the device off and 16.3 with the device on. This is a 16.8% reduction. On the right side of the panel it averaged 17.3 amps off, and 13.6 amps on for a 21.4% reduction. Overall the drop was from 37.0 amps to 29.9 amps, or a 19.2% reduction in amps. This was not a scientific study and I'm not an electrician, but my test did clearly show the impact of the device on current draw at my home. In conclusion, I'd say the device works, although it didn't show the kind of reductions claimed in some of the advertising; of course, what does?
Here's one tenacious fellow who took one apart to see how it was made:
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