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Does Power Saver Really Save Your Monthly Electricity Cost?

Does your house use this thing?

Does Power Saver Really Save Your Monthly Electricity Cost? picture earth song  photo
Electricity saving box?

It is said to be able to reduce your electricity bill and save you money. All you have to do is plugging in this thing into one of your socket outlets. Some of you may ask what this thing is. There are a lot of names used to name this thing, such as power saver, electrical energy saver, power factor regulator, power capacitor, capacitor bank, just to name a few.

Does Power Saver Really Save Your Monthly Electricity Cost? picture earth song  photo
Closer look

Does Power Saver Really Save Your Monthly Electricity Cost? picture earth song  photo
Plug into the socket outlet

Is this thing really helps in reducing your monthly electricity bill? From my background knowledge, this thing (let’s call it capacitor bank) works based on the concept of power factor correction.

Power consists of 2 components, the real power and the reactive power. Real power or average power is the actual power developed and only exists at resistors. Meanwhile, reactive power is the power developed due to reactance, may it be inductive or capacitive. The ratio of real power to apparent power is what we call as power factor. Power factor also can be denoted as cos θ.

Does Power Saver Really Save Your Monthly Electricity Cost? picture earth song  photo
Power Triangle

Before I continue further, let me tell you that the power meter at your home only measures real power. It does not measure reactive power. So your monthly electricity bill is based on how many unit real power your home is using. Ok, now. Power factor correction is the process of altering the power factor so that it is closer to unity (cos 0 = 1). If a capacitor bank is connected in parallel with the load (plug into socket outlet), it can subsequently improve the power factor to a value close to unity as shown in the figure below. But look carefully, after the power factor correction, only reactive power is reduced while there is no change to the real power. So, I have to say that the use of capacitor bank would not save anything on your monthly electricity bill.

Does Power Saver Really Save Your Monthly Electricity Cost? picture earth song  photo
Power factor correction only reduces reactive power (var), not real power (W)

However, there are still some advantages of power factor correction. By connecting the capacitor bank to your socket outlet, the electrical load on the utility company (Tenaga and SESCO) is reduced. This allows the utility company to supply the surplus power to other consumers without increasing its generating capacity. Thus, although the use of capacitor bank does not help in saving your monthly electricity cost, it actually improves the efficiency in the power usage and in a way more environmental friendly.

Does Power Saver Really Save Your Monthly Electricity Cost? picture earth song  photo
Transformer in a substation

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82 comments to Does Power Saver Really Save Your Monthly Electricity Cost?

  • adrian best

    All I can say is i really don’t know how or why it works it is suppose to correct and stabilise the voltage so u do not end up paying for waste electricity which a lot of us do it is also for surge protection but my testimony is before I installed these my electric bill was out of control I was going insane I was paying like 300 dollars a month from that day until now I now pay between 160 and 175 every month and with no change at all to my electricity usage it is the best in
    vestment I have ever made so the folks on here or any other site can talk all they like I thank God I discovered this 4 of my friends I hooked them up with some and they are getting the same results now everyone of my friends here want one lol.But seriously try it your self things with motors in your house espically will benefit one powers saver per phase for instant u may have 3 plugs in your living room all maybe on the same breaker switch so one power saver will regulate for the entire living room and so entry i

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    • Martin

      Hi Adrian
      I dug out the power Saver and posted the pics on my word press page for anyone to view. I did plug it in today and monitored the smart meter but am afraid to say this one certainly does NOT make a blind bit of a difference. (as I suspected) unless someone will now probably say “its the one I bought” or “you have to leave it on. I will say that I left it on for one hour and it did not heat up. so I suppose that is a gooood thing . so for now I will do as I said and try it for a longer period at the first of this month…

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  • Martin

    hi all well I set the power saver going early hours this morning took the reading from the smart display and my last 28 days use in monetary terms was £44.64 and for the last 7 days it was £10.56 so lets see what happens . again follow this link to see the power saver I am using..
    http://logic0104.wordpress.com/2014/06/29/the-so-called-power-saver/

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  • Martin

    well here I am again and with some surprising results. have run the Power saver now constantly for 30 days (since 1st July) I took my readings from the accurate energy monitor which is supplied with my smart meter. and for 28 days constant use I have used (again in monetary terms) £28.26 reading for last 7 days on the 28th were £6.07. now this has really shocked me as I have spoken to several talented electricians and they have all informed me that as stated in a previous post that I am not billed for reactive power so can anyone explain why the power save I am using is (or appears to be) working ?????? now there are a few factors to consider firstly we have had extremely good weather in the uk over the past month which means that the wife has not been using the tumble dryer but I would say that this is the only change in habits within the household and would speculate that a tumble dryer would not equate to approx. 35 to 40% of my electricity bill. but I am still not convinced so I will continue to run the power saver and update this post in another 28 days (after the 28th) so I will take my next reading on the 25th august and update you all shortly after that… PS note the power saver I am using is not the dodgy one listed above . follow the link in my previous post to view my (so called) power saver…. by the way can you get these for Gas supply lol.

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    • adrian best

      I told martin they work let these fools know they wok wahooooooooo mines is still working after all this time an I have the ones in the picture
      Keep me updated bro and enjoy the savings I know I am lol

      Rate This Comment: Thumb up 2 Thumb down 0

  • Martin

    hi Adrian , yes it appears that we all stand very much corrected. there is something that confuses me . my smart energy display has 3 lights , green for low usage , amber for average, red for high usage. before I fitted the power saver the amber would be lit most of the time but would go to red on high consumption e.g.: if I put the kettle, cooker on and it would only go green if just about everything was switched off but now I can have the TV on with a few lights and the indicator stays green but if I turn the TV off it goes amber ??? its almost like its gone to a partial reversal on usage. don’t get me wrong if I put the cooker on etc. it still goes red but it appears to reduce the average usage. another point is that standard single phase voltage in the uk is 230 volts with a tolerance of -6% / +10% and when I moved into the property it was 225 volts at the supply (I tested this as I needed to add a supply for a workshop 30meters away from the supply) after adding the power saver the voltage at supply has gone up to 253 volts. ???? I am surmising that the power saver is somehow fooling the supplier to up the voltage making it more efficient. I am not an electrician but the power saver is quite obviously having some effect to how I am supplied and what I am charged. I will update this shortly after my next reading . but I will say this lets keep it quiet Shsss cos if everyone gets them the power companies will lose out at put the price up .LOL

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  • Martin

    not when using word press . I believe word press replaced my space and its just like writing e-mails but you have to change your privacy settings within the platform for all to see your blogs. I know nothing about coding’s in fact I can only just type LOL. so use your word press make up your blog , insert pics the usual way using the add pictures feature then copy and paste the address to the word press page into the site you are blogging on. if you want to create your own blog site I believe you can do this using word press but its a function you will have to pay for as its like having your own domain . my advice is if you want to create a BLOG SITE have a look at Adobe Dreamweaver and look into creating a genuine site and pay a few quid for a domain name and use a host server. or windows 7 ultimate can be used as a server by turning the function on . Dreamweaver is completely idiot proof and anyone who can type can create websites as the program takes care of all the coding for you and there are countless free step by step tuition videos on the net for you to access hence this link( http://www.thesitewizard.com/dreamweaver/dreamweaver-cs5-5-tutorial-1.shtml ). good luck hope this helps.

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  • Stuart

    Hi Martin,

    Just seen your post, yes indeed the real Power Correction Energy Savers do work very well indeed.
    You are saving money because the power correction unit is only giving each appliance in your home the correct amount of energy that it requires.
    Also when a capacator (which they are) is fitted it eliminates reactive power that your own appliances are creating, so the electricians are partially correct,you do not get billed for reactive power but you are billed for the reactive power your appliances are giving off.

    So with the energy saver operating correctly should save up to 48%.

    Our model, Power Tune also includes a powerful lightning surge protector so will protect your home and appliances from a lightning strike, I believe to have an electrician to wire your house for lightning protection would be around £3,000.00 we can send a unit for £150.00,which would you prefer,a Power Tune that reduces your electricity bill and protects your contents for £150.00 or hire an electrician for £3,000.00and still have high energy bills?
    We are currently in Tuscany Italy fitting our Power Tune`s into all the Wineries as they have high energy consumption and also suffer severe thunder and lightning storms.
    Not enjoying the wine here, much!!! LOL

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  • Martin

    Hi Stuart.
    Many thanks for your explanation on how the Power saver works but may I say that jury is still out where I am concerned as I am a very open minded yet sceptical person who questions everything (especially where money is concerned). so I will continue to monitor and post my results. and if anyone else new to this blog reads this please be aware I am not selling or buying anything and the results I post will be truthful and impartial. it will never be aimed as Advice only fact based on my own experience with the power saver. however I will say again (as stated previously) that I really do hope this little gadget works. but a quick question for you (Stuart) is , How reliable are these Capacitors? , or , How long should they last? a guide to longevity would be helpful as if they only last “say” 6 months then its hardly worth bothering with . and finally how long are yours guaranteed for (12/24 months) ? . many thanks in advance….

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  • Stuart

    Hi Martin,

    Glad you are keeping an open mind, many people can`t get thier head round this simple `English` invention.

    I have to say again, that their are very few legal capacators available to the public that are legal with all the correct documentation.Most of the fakes are made in India and China.

    I can`t comment on yours as I do not know which model you have,our system is guaranteed for 12 months ordinarily, however in Spain the law is a minimum of 24 months so we do give 24 months in Spain.

    Operating lifetime is normally 7 to 10 years or if the green light goes out (our system) then they are not operating correctly, ie; the capacator or the lightning surge protector has stopped working.

    Enjoy your savings!
    If you have any questions please feel free to ask.

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  • adrian best

    Yes enjoy your savings martin I am all these so call ignorant want to be electricians that don’t know a damn thing about power savers or have never tested any have a lot to say I wish they would all just shut up pleaseeeeeeee I have had mine installed since last year September and I am still seeing a 40% reduction in my electricity bill and with no change in my usage habits and I am loving it long live power savers lol.

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  • Martin

    Hi To everyone following , here I am again with my 28 day results from my “power saver”, well it appears that usage has increased since my last post on this subject, after taking my reading on the 25th of this month my usage (again in monetary terms) is for the previous 28 days £35.13 and for the 7 days previous it is £8.85 however there are a couple of factor’s to take into account firstly it has rained a lot over the last month here in the UK (British weather) so the tumble dryer has been getting a fair amount of use and secondly the kids are on the summer break so the PC’s and TV’s have also been getting a fair amount of use too. as previously stated I will update my results after another 28 days which will be a reading taken on the Monday the 22nd September…… the jury is still out for me…

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  • Martin

    What the Hell has this got to do with whether a power saver works or not ??????????

    Rate This Comment: Thumb up 0 Thumb down 0

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