Chinese (Simplified)Chinese (Traditional)EnglishFrenchGermanHindiIndonesianItalianJapaneseKoreanPortugueseRussianSpanishThai

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

Technorati Tags: , , , , ,

Creative Commons License
Does Power Saver Really Save Your Monthly Electricity Cost? by Life Is Like That, unless otherwise expressly stated, is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.5 Malaysia License.

67 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

    Rate This Comment: Thumb up 0 Thumb down 0

    • 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…

      Rate This Comment: Thumb up 0 Thumb down 0

  • 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/

    Rate This Comment: Thumb up 0 Thumb down 0

  • 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.

    Rate This Comment: Thumb up 0 Thumb down 0

Leave a Reply

  

  

  

You can use these HTML tags

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

Subscribe to Life Is Like That by Email

All Traveling Sites

Lifestyle Blogs - BlogCatalog Blog Directory

Add to Technorati Favorites

James Neill Wong

Create Your Badge