power-save 1200
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I recently learned about the power-save 1200. Home appliances draw in moreelectricity than is used. This unit stores the wasted power for future use and saves money on electricity. Doe anyone have information about this product? Has anyone tested the power-save 1200 for dirty electricity? It has a surge suppressor, but I question if it is safe.
http://www.powersavestore.com/power-save-1200/ http://www.powersavestore.com/power-save-videos/ Thanks for your help. Christine Hoch |
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Looks interesting if it actually works!
Cheers Pete christine_hoch wrote: > I recently learned about the power-save 1200. Home appliances draw in more electricity than is used. This unit stores the wasted power for future use and saves money on electricity. Doe anyone have information about this product? Has anyone tested the power-save 1200 for dirty electricity? It has a surge suppressor, but I question if it is safe. > > http://www.powersavestore.com/power-save-1200/ > http://www.powersavestore.com/power-save-videos/ > > Thanks for your help. > > Christine Hoch > > > > > |
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In reply to this post by christine_hoch
Gary Johnson wrote:
> I suspect the unit is just a capacitor. When plugged into a wall > receptacle, it will draw a few amps of capacitive current. This > capacitive current will cancel the same amount of inductive current > being drawn by motors in the house. The measured current at the > electric meter will decrease, perhaps up to the factor of two shown in > the video, under just the right conditions. The capacitor will > definitely act as a surge suppressor, and might lower the amount of > dirty electricity in the house. (There are situations where it will > increase the amount of dirty electricity, similar to a hole in the > earth collecting garbage flowing over it). Utilities use such > capacitors regularly, to improve the system power factor and reduce > heating losses in distribution and transmission lines. > > That was the good news. The bad news is that the utility does not > charge residential customers for the amount of current, but only for > energy, which is power in kilowatts times the time in hours. Your > household motors use the same amount of energy whether there is a > capacitor in the system or not. So your energy bill stays the same. > (It might decrease by a fraction of one percent). So if you are > thinking about buying one to save money, forget it. The simple payback > time is close to infinite. > > This concept has been taught to every electrical engineering student > for the past century. If it really saved money like the ad claims, > there would be plenty of similar devices available at your local big > box hardware store. > > Gary Johnson > Emeritus Professor of Electrical Engineering, Kansas State University. > > christine_hoch wrote: >> I recently learned about the power-save 1200. Home appliances draw >> in more electricity than is used. This unit stores the wasted power >> for future use and saves money on electricity. Doe anyone have >> information about this product? Has anyone tested the power-save 1200 >> for dirty electricity? It has a surge suppressor, but I question if >> it is safe. >> http://www.powersavestore.com/power-save-1200/ >> http://www.powersavestore.com/power-save-videos/ >> >> Thanks for your help. >> >> Christine Hoch >> >> >> >> >> >> ------------------------------------ >> >> Yahoo! Groups Links >> >> >> >> > > |
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I used something years ago that was probably similar. It was not a
capacitor (if the literature with it was correct) but a computer controlled switching supply, designed to lower voltage until the motor almost stalled. This can work, but is awful in terms of dirty power (a proper filter would fix it, but would cost about $200 minimum, and would be rather large and heavy). Also, the unit I had burnt itself out within a year, and the fridge died about the same time (but it was rather old and cheap). Bill On Wed, Apr 29, 2009 at 7:52 PM, Gary Johnson <[hidden email]> wrote: > > > Gary Johnson wrote: > > I suspect the unit is just a capacitor. When plugged into a wall > > receptacle, it will draw a few amps of capacitive current. This > > capacitive current will cancel the same amount of inductive current > > being drawn by motors in the house. The measured current at the > > electric meter will decrease, perhaps up to the factor of two shown in > > the video, under just the right conditions. The capacitor will > > definitely act as a surge suppressor, and might lower the amount of > > dirty electricity in the house. (There are situations where it will > > increase the amount of dirty electricity, similar to a hole in the > > earth collecting garbage flowing over it). Utilities use such > > capacitors regularly, to improve the system power factor and reduce > > heating losses in distribution and transmission lines. > > > > That was the good news. The bad news is that the utility does not > > charge residential customers for the amount of current, but only for > > energy, which is power in kilowatts times the time in hours. Your > > household motors use the same amount of energy whether there is a > > capacitor in the system or not. So your energy bill stays the same. > > (It might decrease by a fraction of one percent). So if you are > > thinking about buying one to save money, forget it. The simple payback > > time is close to infinite. > > > > This concept has been taught to every electrical engineering student > > for the past century. If it really saved money like the ad claims, > > there would be plenty of similar devices available at your local big > > box hardware store. > > > > Gary Johnson > > Emeritus Professor of Electrical Engineering, Kansas State University. > > > > > christine_hoch wrote: > >> I recently learned about the power-save 1200. Home appliances draw > >> in more electricity than is used. This unit stores the wasted power > >> for future use and saves money on electricity. Doe anyone have > >> information about this product? Has anyone tested the power-save 1200 > >> for dirty electricity? It has a surge suppressor, but I question if > >> it is safe. > >> http://www.powersavestore.com/power-save-1200/ > >> http://www.powersavestore.com/power-save-videos/ > >> > >> Thanks for your help. > >> > >> Christine Hoch > >> > >> > >> > >> > >> > >> ------------------------------------ > >> > >> Yahoo! Groups Links > >> > >> > >> > >> > > > > > > > [Non-text portions of this message have been removed] |
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