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Guest Message by DevFuse

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Swim 16 Power Consumption


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34 replies to this topic

#21 OFFLINE   harsh

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Posted 30 June 2014 - 01:15 PM

21v is 25.2 watts
29V is 40.6 Watts

The output wattage is not the key measure here. The important number is the input wattage.

The total consumption is the sum of the heat given off by the SWiM switchgear plus the heat given off by the PI itself as part of the conversion to 29VDC.

You must measure the wattage (the amperage multiplied by the voltage) going in and use that number to multiply by your electricity rate. CONUS residential electricity rates vary from 8.75 CENTS/Kwh (Washington state) to 19.87 CENTS/Kwh (Connecticut). The average rate across all of the US (including AK and HI) is 12.31 CENTS/Kwh.

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#22 OFFLINE   MrDad0330

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Posted 30 June 2014 - 03:27 PM

Well then a SWM 16 is NOT using 100 watts..  For the record, here is the electrical cost of operating a 100 watt device based on my kwh rate of 0125

 

100 watts x720 hrs(month)= 72,000 watts or 72kwh (your correct Carl)  x .125 (my rate)= $9  That's the cold hard facts..  "IF" the SWM16 consumes 100 watts per hour, that's what it cost me in my monthly electric bill each month.  A new SWM-LB + Pl29 will cost me $30 so my payback would be 3.3 months...  !!!    I sell lighting for a living, save customers a ton on LED upgrades and its not difficult to calculate usage of Kwh and hours to come up with costs..   Thanks for the formula though, I would like to try it out. 

My Kwh rate is with Met Ed here in Central Pa and after all charges and taxes are loaded in, I am paying 12.5 cents per Kwh.    



#23 OFFLINE   MrDad0330

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Posted 30 June 2014 - 04:55 PM

I guess what I was really looking for was the actual watts that the SWM16 consumed and go from there.  It just seems to run very warm and that means its generating heat and using watts to generate heat and not only powering my SWM-3 dish but the system I suppose.  I don't know what the PI is using, it doesn't have a part # on it.. It just states for use ONLY with a SWM16.



#24 OFFLINE   jimmie57

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Posted 30 June 2014 - 06:48 PM

I guess what I was really looking for was the actual watts that the SWM16 consumed and go from there.  It just seems to run very warm and that means its generating heat and using watts to generate heat and not only powering my SWM-3 dish but the system I suppose.  I don't know what the PI is using, it doesn't have a part # on it.. It just states for use ONLY with a SWM16.

I have a PI21 volt and a Kill A Watt. Tomorrow morning I will unplug it and hook the 2 together and get the actual wattage that it uses and maybe that will relate to the PI29 based on an earlier post that specified the volts / watts output. We can do a relative math equation to estimate it's actual consumption.


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HR24-100 Component cables to 46" Samsung LCD & Optical Cable to Yamaha AVR, H21-200 HDMI to Yamaha AVR & HDMI to 52" Mitsubishi LCD


#25 OFFLINE   dennisj00

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Posted 30 June 2014 - 06:50 PM

For what it's worth, I wouldn't spend the money to change the LNB and PI of a working system.  You could bump the dish and screw the whole thing up in the name of saving energy.  Unless you've peaked your dish before.

 

I'd buy 2 or 3 LED 60 / 100 watt equivalents and save money there for many more years.



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#26 OFFLINE   MrDad0330

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Posted 30 June 2014 - 07:12 PM

LOL, I only have LED lamps in my home..  Ive changed out many an LNB on a dish before.  But....with the new dish's, I would have real issues re-pointing.  I installed my first D dish back in 1995.  Bought it from Sears and back then, I got two bills, one from D and one from USSB.  Awe the good ole days.. lol...



#27 OFFLINE   MrDad0330

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Posted 30 June 2014 - 07:14 PM

thanks jimmie... it will be interesting to hear your findings..



#28 OFFLINE   jimmie57

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Posted 01 July 2014 - 05:53 AM

thanks jimmie... it will be interesting to hear your findings..

Here is a couple of pictures I took with my Ipad. The PI21 is next to the Kill A Watt in one pic and the other is closer with a flashlight on it so it is easier to read. It shows 8.8 watts.

 

PI21 and Kill A Watt.JPG

 

PI21 watts.JPG


Edited by jimmie57, 01 July 2014 - 05:54 AM.

DirecTV customer since 1996 - Current :Slimline 3 SWM,   HR24-100 HDMI to 32" Sharp LED,
HR24-100 Component cables to 46" Samsung LCD & Optical Cable to Yamaha AVR, H21-200 HDMI to Yamaha AVR & HDMI to 52" Mitsubishi LCD


#29 OFFLINE   harsh

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Posted 02 July 2014 - 08:05 AM

I guess what I was really looking for was the actual watts that the SWM16 consumed and go from there.

You cannot ignore the efficiency of the PI. It may be possible to replace the PI with a more efficient device but it wouldn't be cheap.

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#30 OFFLINE   slice1900

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Posted 03 July 2014 - 04:08 PM

I've measured them, they draw 24 watts including the power for the legacy LNB. That's barely half a killowatt hour per day. If you want to save electricity, turning your AC up one degree would save more in a month than the SWM16 draws in a whole year.


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#31 OFFLINE   Stevies3

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Posted 03 July 2014 - 05:28 PM

I purposely went RVU on 3 sets for this very reason.


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#32 OFFLINE   peds48

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Posted 03 July 2014 - 07:13 PM

I purposely went RVU on 3 sets for this very reason.


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What reason?  SWM16 PI?  I dont think there is enough difference in running a SWM16 or a SWM LNB, 


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#33 OFFLINE   Stevies3

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Posted 03 July 2014 - 09:50 PM

What reason? SWM16 PI? I dont think there is enough difference in running a SWM16 or a SWM LNB,


No, I didn't want to power 3 x STB 24/7. I think an HR24 is rated appx 35watts. Netting me a savings of about 105 watts


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SWM16

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#34 OFFLINE   dennisj00

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Posted 04 July 2014 - 04:49 AM

No, I didn't want to power 3 x STB 24/7. I think an HR24 is rated appx 35watts. Netting me a savings of about 105 watts


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With the Cxx clients you may have saved 20 watts each - 60 total.

 

Edit:  Correction, just measured 7 watts each!!  21 total.



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#35 OFFLINE   Stevies3

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Posted 04 July 2014 - 05:45 AM

With the Cxx clients you may have saved 20 watts each - 60 total.

Edit: Correction, just measured 7 watts each!! 21 total.


You are correct, however moving to a Genie enabled me to terminate my HR24's. Something one can't do without a Genie. RVU was a big selling point to me. I previously had Whole Home with my HR24's so not much else was gained with a Genie in my case. Plus the less clutter is an added bonus.


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SWM16

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