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Solar Panels: Anyone try these? they look like a good deal... [message #121800] Thu, 14 April 2011 14:19 Go to next message
Duce Apocalypse is currently offline  Duce Apocalypse   United States
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Location: Los angeles
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Was wondering if anyone has tried these panels by evergreen? They are the highest output 12v panels I have found at 210 watts. Seems like a pair of these would be good for some hardcore boondocking. Price is pretty fair for panels of this size as well...

http://www.atensolar.com/m5/150-107--evergreen-210-watt-poly-crystal-module-12v-black-frame.html


73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
Re: [GMCnet] Solar Panels: Anyone try these? they look like a gooddeal... [message #121803 is a reply to message #121800] Thu, 14 April 2011 14:27 Go to previous messageGo to next message
Gary Worobec is currently offline  Gary Worobec   United States
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Shan, a Polycrystaline panel is going to give you max about 15% to 20%
efficiency. Don't know where these guys get 90 percent. Heck DARPA is
struggling for 45%. You can figure maybe 40 to 50 watts actual from a penel
so figure a decent 4 to 5 amps on a good day @ 12v.

Thanks

Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA


----- Original Message -----
From: "Shan Rose" <defconfx@gmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Thursday, April 14, 2011 12:19 PM
Subject: [GMCnet] Solar Panels: Anyne try these? they look like a
gooddeal...


>
>
> Was wondering if anyone has tried these panels by evergreen? They are the
> highest output 12v panels I have found at 210 watts. Seems like a pair of
> these would be good for some hardcore boondocking. Price is pretty fair
> for panels of this size as well...
>
> http://www.atensolar.com/m5/150-107--evergreen-210-watt-poly-crystal-module-12v-black-frame.html
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Re: [GMCnet] Solar Panels: Anyone try these? they look like a gooddeal... [message #121819 is a reply to message #121803] Thu, 14 April 2011 15:35 Go to previous messageGo to next message
bwevers is currently offline  bwevers   United States
Messages: 597
Registered: October 2010
Location: San Jose
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Senior Member
The data sheet says 210 watts under "standard test conditions", no wind, no clouds, 72 degrees. facing directly at the sun. They go on to say that under "nominal operating conditions" you can get 150 watts, with practically no wind, no clouds, facing directly at the sun. 50 watts seems like a realistic amount of power that you can get out of one of these.

Bill Wevers GMC49ers, GMC Western States 1975 Glenbrook - Manny Powerdrive, OneTon 455 F Block, G heads San Jose
Re: [GMCnet] Solar Panels: Anyone try these? they look like a gooddeal... [message #121822 is a reply to message #121803] Thu, 14 April 2011 15:55 Go to previous messageGo to next message
Duce Apocalypse is currently offline  Duce Apocalypse   United States
Messages: 824
Registered: May 2009
Location: Los angeles
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Senior Member

Gary, the 90% field performance I think means customer satisfaction. The spec sheet for these panels had efficient was around 14% they also warrant 90% of rated power output after 10 years. The output assumes 5 hours of peak sunlight every day. In CA and Mojave deserts where I normally hang out is usually double that per day. Today I might add is a perfect solar day which is what got me thinking about this. We$tmarine sells a panel kit a 135 watt panel for about 700 but this looks to be the largest 12b panel on the market. I assume one could use the higher volt panels but then you need an expensive controller to use those with a 12v battery system. Would love to hear from someone who has an array on their coach. I've seen one GMC which had the entire roof covered with panels. Though I'm sure a setup like that would be very cost prohibitive...

Gary Worobec wrote on Thu, 14 April 2011 14:27

Shan, a
Polycrystaline panel is going to give you max about 15% to 20%
efficiency. Don't know where these guys get 90 percent. Heck DARPA is
struggling for 45%. You can figure maybe 40 to 50 watts actual from a panel
so figure a decent 4 to 5 amps on a good day @ 12v.

Thanks

Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA


----- Original Message -----
From: "Shan Rose" <defconfx@gmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Thursday, April 14, 2011 12:19 PM
Subject: [GMCnet] Solar Panels: Anyne try these? they look like a
gooddeal...


>
>
> Was wondering if anyone has tried these panels by evergreen? They are the
> highest output 12v panels I have found at 210 watts. Seems like a pair of
> these would be good for some hardcore boondocking. Price is pretty fair
> for panels of this size as well...
>
> http://www.atensolar.com/m5/150-107--evergreen-210-watt-poly-crystal-module-12v-black-frame.html
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
Re: Solar Panels: Anyone try these? they look like a good deal... [message #121823 is a reply to message #121800] Thu, 14 April 2011 15:56 Go to previous messageGo to next message
idrob is currently offline  idrob   United States
Messages: 645
Registered: January 2005
Location: Central Idaho
Karma: 0
Senior Member
Duce Apocalypse wrote on Thu, 14 April 2011 12:19

Was wondering if anyone has tried these panels by evergreen? They are the highest output 12v panels I have found at 210 watts. Seems like a pair of these would be good for some hardcore boondocking. Price is pretty fair for panels of this size as well...

http://www.atensolar.com/m5/150-107--evergreen-210-watt-poly-crystal-module-12v-black-frame.html


Yes, good price and a major US manufacturer. The size is 65" x 38" so finding space for them can be a problem on the rooftop, with all the other things up there. Their specs are -0% + 5% so you can be assured that they will meet their design number of 210 watt output under standard test conditions. I would estimate that, laying flat on a rooftop, summer sunshine in most areas of the US, you could expect to produce about 160 to 180 watts per panel as a realistic output.


Rob Allen
former owner of '76 x-PB
Re: Solar Panels: Anyone try these? they look like a good deal... [message #121829 is a reply to message #121800] Thu, 14 April 2011 16:54 Go to previous messageGo to next message
Duce Apocalypse is currently offline  Duce Apocalypse   United States
Messages: 824
Registered: May 2009
Location: Los angeles
Karma: 0
Senior Member

Well for me I know I could fit at least 1 of these units on my roof. I only have 1 AC on the roof and a luggage rack I never use, So I could probably expand the system should I choose at some point. The price per watt seems really good since I have seen lower power panels going for more money...

73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
Re: [GMCnet] Solar Panels: Anyone try these? they look like a gooddeal... [message #121838 is a reply to message #121800] Thu, 14 April 2011 18:51 Go to previous messageGo to next message
Gary Worobec is currently offline  Gary Worobec   United States
Messages: 867
Registered: May 2005
Karma: -1
Senior Member
Shan,
Here is a presentation that I did at GMCWS last fall. It explains the
differences in the three types of solar panels, Also covers some wind and
fuel cell stuff.

http://www.gmcws.org/Tech/Charging_Systems.pdf

Thanks

Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA


----- Original Message -----
From: "Shan Rose" <defconfx@gmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Thursday, April 14, 2011 12:19 PM
Subject: [GMCnet] Solar Panels: Anyone try these? they look like a
gooddeal..


>
>
> Was wondering if anyone has tried these panels by evergreen? They are the
> highest output 12v panels I have found at 210 watts. Seems like a pair of
> these would be good for some hardcore boondocking. Price is pretty fair
> for panels of this size as well...
>
> http://www.atensolar.com/m5/150-107--evergreen-210-watt-poly-crystal-module-12v-black-frame.html
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Re: [GMCnet] Solar Panels: Anyone try these? they look like a gooddeal... [message #121840 is a reply to message #121803] Thu, 14 April 2011 19:01 Go to previous messageGo to next message
Douglas Norton is currently offline  Douglas Norton   United States
Messages: 191
Registered: April 2008
Karma: 0
Senior Member
I do not know what the 90% relates to; most likely not to solar efficiency.  A panel this size should put out the advertised watts or more.  With the sun at 45 degrees, I get two amps out of a 50 watt panel; that is about 50% of what it puts out at noon with the panel tilted toward the sun and with the battery low enough to accept most of what is sent to it.  My panel is probably only 15% efficient as it relates to solar energy. 

One of these should be more than enough to meet most boondocking needs.  I use low energy LED lighting, a small efficient tv and a small web book; we more than "get by" with 115 watts of solar in winter without tilting our panels.  You might need more than 220 watts if you do not use low energy strategies.

--- On Thu, 4/14/11, Gary Worobec <gtw5@earthlink.net> wrote:

From: Gary Worobec <gtw5@earthlink.net>
Subject: Re: [GMCnet] Solar Panels: Anyone try these? they look like a gooddeal...
To: gmclist@temp.gmcnet.org
Date: Thursday, April 14, 2011, 12:27 PM

Shan, a Polycrystaline panel is going to give you max about 15% to 20%
efficiency. Don't know where these guys get 90 percent. Heck DARPA is
struggling for 45%. You can figure maybe 40 to 50 watts actual from a penel
so figure a decent 4 to 5 amps on a good day @ 12v.

Thanks

Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA


----- Original Message -----
From: "Shan Rose" <defconfx@gmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Thursday, April 14, 2011 12:19 PM
Subject: [GMCnet] Solar Panels: Anyne try these? they look like a
gooddeal...


>
>
> Was wondering if anyone has tried these panels by evergreen? They are the
> highest output 12v panels I have found at 210 watts. Seems like a pair of
> these would be good for some hardcore boondocking. Price is pretty fair
> for panels of this size as well...
>
> http://www.atensolar.com/m5/150-107--evergreen-210-watt-poly-crystal-module-12v-black-frame.html
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Re: [GMCnet] Solar Panels: Anyone try these? they look like agooddeal... [message #121842 is a reply to message #121840] Thu, 14 April 2011 19:21 Go to previous messageGo to next message
sgltrac is currently offline  sgltrac   United States
Messages: 2797
Registered: April 2011
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Senior Member
Would an LED tv be the most efficient type of tv to run off an inverter? Getting ready to purchase and prefer the slim profile
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Douglas Norton <nortocd@yahoo.com>
Sender: gmclist-bounces@temp.gmcnet.org
Date: Thu, 14 Apr 2011 17:01:28
To: <gmclist@temp.gmcnet.org>
Reply-To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Solar Panels: Anyone try these? they look like a
gooddeal...

I do not know what the 90% relates to; most likely not to solar efficiency.  A panel this size should put out the advertised watts or more.  With the sun at 45 degrees, I get two amps out of a 50 watt panel; that is about 50% of what it puts out at noon with the panel tilted toward the sun and with the battery low enough to accept most of what is sent to it.  My panel is probably only 15% efficient as it relates to solar energy. 

One of these should be more than enough to meet most boondocking needs.  I use low energy LED lighting, a small efficient tv and a small web book; we more than "get by" with 115 watts of solar in winter without tilting our panels.  You might need more than 220 watts if you do not use low energy strategies.

--- On Thu, 4/14/11, Gary Worobec <gtw5@earthlink.net> wrote:

From: Gary Worobec <gtw5@earthlink.net>
Subject: Re: [GMCnet] Solar Panels: Anyone try these? they look like a gooddeal...
To: gmclist@temp.gmcnet.org
Date: Thursday, April 14, 2011, 12:27 PM

Shan, a Polycrystaline panel is going to give you max about 15% to 20%
efficiency. Don't know where these guys get 90 percent. Heck DARPA is
struggling for 45%. You can figure maybe 40 to 50 watts actual from a penel
so figure a decent 4 to 5 amps on a good day @ 12v.

Thanks

Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA


----- Original Message -----
From: "Shan Rose" <defconfx@gmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Thursday, April 14, 2011 12:19 PM
Subject: [GMCnet] Solar Panels: Anyne try these? they look like a
gooddeal...


>
>
> Was wondering if anyone has tried these panels by evergreen? They are the
> highest output 12v panels I have found at 210 watts. Seems like a pair of
> these would be good for some hardcore boondocking. Price is pretty fair
> for panels of this size as well...
>
> http://www.atensolar.com/m5/150-107--evergreen-210-watt-poly-crystal-module-12v-black-frame.html
>_______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Sully 77 Royale basket case. Future motorhome land speed record holder(bucket list) Seattle, Wa.
Re: [GMCnet] Solar Panels: Anyone try these? they look like agooddeal... [message #121859 is a reply to message #121842] Thu, 14 April 2011 21:26 Go to previous messageGo to next message
WD0AFQ is currently offline  WD0AFQ   United States
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
Senior Member
Anyone Looking for a low current tv needs to first gain access to a Kill A Watt meter. Take it with you and see how much each tv draws. I waited til about midnite and did this at Walmart. My new 19 inch Sanyo draws half what my 3 year old Sanyo 19 inch drew. As Doug stated, You can live very comfortably dry camping if you do your homework.We can run every light in the coach and draw less than one incadescent bulb draws. 4 6volts are better than 2, if you run 2 tvs and 2 computers at night like we do.
Dan


3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer
Re: [GMCnet] Solar Panels: Anyone try these? they look like agooddeal... [message #121904 is a reply to message #121842] Fri, 15 April 2011 12:18 Go to previous messageGo to next message
Duce Apocalypse is currently offline  Duce Apocalypse   United States
Messages: 824
Registered: May 2009
Location: Los angeles
Karma: 0
Senior Member

Well make sure you get a good inverter. I had a bunch of eBay gift cards so I cashed them in for a Pro Watt SW by Xantrex. Most of what I read Xantrex makes good stuff. I was able to run my 42 inch vizio LCD and a DVD off of a modified square wave inverter which is not the most efficient inverter and it pulled just under 20a DC for both. I imagine with a true sine inverter that would be much lower.

As for LCD HDTVs they draw about 40% less power than their traditional LCD cousins, which already draw a low power so really an LED TV from Samsung or similar manufacturer would be a great choice and you can even run a relatively large screen size for very low power. Remember even the LCD TVs of today draw a fraction of what older CRT units did.

sgltrac wrote on Thu, 14 April 2011 19:21

Would an LED tv be the most efficient type of tv to run off an inverter? Getting ready to purchase and prefer the slim profile
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Douglas Norton <nortocd@yahoo.com>
Sender: gmclist-bounces@temp.gmcnet.org
Date: Thu, 14 Apr 2011 17:01:28
To: <gmclist@temp.gmcnet.org>
Reply-To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Solar Panels: Anyone try these? they look like a
gooddeal...

I do not know what the 90% relates to; most likely not to solar efficiency.  A panel this size should put out the advertised watts or more.  With the sun at 45 degrees, I get two amps out of a 50 watt panel; that is about 50% of what it puts out at noon with the panel tilted toward the sun and with the battery low enough to accept most of what is sent to it.  My panel is probably only 15% efficient as it relates to solar energy. 

One of these should be more than enough to meet most boondocking needs.  I use low energy LED lighting, a small efficient tv and a small web book; we more than "get by" with 115 watts of solar in winter without tilting our panels.  You might need more than 220 watts if you do not use low energy strategies.

--- On Thu, 4/14/11, Gary Worobec <gtw5@earthlink.net> wrote:

From: Gary Worobec <gtw5@earthlink.net>
Subject: Re: [GMCnet] Solar Panels: Anyone try these? they look like a gooddeal...
To: gmclist@temp.gmcnet.org
Date: Thursday, April 14, 2011, 12:27 PM

Shan, a Polycrystaline panel is going to give you max about 15% to 20%
efficiency. Don't know where these guys get 90 percent. Heck DARPA is
struggling for 45%. You can figure maybe 40 to 50 watts actual from a penel
so figure a decent 4 to 5 amps on a good day @ 12v.

Thanks

Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA


----- Original Message -----
From: "Shan Rose" <defconfx@gmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Thursday, April 14, 2011 12:19 PM
Subject: [GMCnet] Solar Panels: Anyne try these? they look like a
gooddeal...


>
>
> Was wondering if anyone has tried these panels by evergreen? They are the
> highest output 12v panels I have found at 210 watts. Seems like a pair of
> these would be good for some hardcore boondocking. Price is pretty fair
> for panels of this size as well...
>
> http://www.atensolar.com/m5/150-107--evergreen-210-watt-poly-crystal-module-12v-black-frame.html
>_______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
Re: [GMCnet] Solar Panels: Anyone try these? they look like agooddeal... [message #122445 is a reply to message #121859] Wed, 20 April 2011 01:19 Go to previous messageGo to next message
Douglas Norton is currently offline  Douglas Norton   United States
Messages: 191
Registered: April 2008
Karma: 0
Senior Member
I am far from sold on pure sign wave inverters.  I would like to see some testing and results.  I have only had one item fail on a modified sign wave inverter (my kilowatt meter).  I have run a lot of appliances on my inverter with no problems and with efficiency near 90%.  My 19 inch LCD TV draws 1.8 amps (into inverter) at 12.8 volts.  That works out to 24.8 watts consumed to run a TV that is rated at 25 watts.  I probably need a pure sign wave inverter to run my microwave.  It is cheaper to run the generator for a couple of minutes since a 2000 watt sign wave inverter is still too costly.  I only hear rumors that it is necessary to run a microwave on pure sign wave.

They say the truth will prevail.  Someone surely will know the truth or have an inquisitive enough mind to figure out the truth about the need for pure sign waves.  Perhaps this would be a good experiment for Myth busters to tackle.  Will cooking a turkey in a microwave for an hour using a modified sign wave inverter blow up the magnetron or use more power than a pure sign wave inverter? 


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Re: [GMCnet] Solar Panels: Anyone try these? they look like agooddeal... [message #122493 is a reply to message #122445] Wed, 20 April 2011 14:11 Go to previous messageGo to next message
Duce Apocalypse is currently offline  Duce Apocalypse   United States
Messages: 824
Registered: May 2009
Location: Los angeles
Karma: 0
Senior Member

Douglas,

I personally had equipment fail from use of a modified square wave inverter. It was a charger for a cordless drill. Also some AC motors do not like modified square wave inverter, they run hotter and less efficiently. My DVD and flat screen pulled 20a DC through a modified square wave. I just got a Xantrex prowatt SW for $40, granted I cashed in $220 worth of gift cards, but still $260 for a 1000 watt pure sine wave inverter is not a bad deal. If you run any sensitive electronics, like a computer you will need SW invetera most likely. I for one use a PS3 as my blue ray player and small computer as well as a game system so PSW inverter makes sense formmy applications...

Quote:

title=Douglas Norton wrote on Wed, 20 April 2011 01:19]I am far from sold on pure sign wave inverters.  I would like to see some testing and results.  I have only had one item fail on a modified sign wave inverter (my kilowatt meter).  I have run a lot of appliances on my inverter with no problems and with efficiency near 90%.  My 19 inch LCD TV draws 1.8 amps (into inverter) at 12.8 volts.  That works out to 24.8 watts consumed to run a TV that is rated at 25 watts.  I probably need a pure sign wave inverter to run my microwave.  It is cheaper to run the generator for a couple of minutes since a 2000 watt sign wave inverter is still too costly.  I only hear rumors that it is necessary to run a microwave on pure sign wave.

They say the truth will prevail.  Someone surely will know the truth or have an inquisitive enough mind to figure out the truth about the need for pure sign waves.  Perhaps this would be a good experiment for Myth busters to tackle.  Will cooking a turkey in a microwave for an hour using a modified sign wave inverter blow up the magnetron or use more power than a pure sign wave inverter? 


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73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
Re: Solar Panels: Anyone try these? they look like a good deal... [message #122501 is a reply to message #121800] Wed, 20 April 2011 14:49 Go to previous messageGo to next message
WD0AFQ is currently offline  WD0AFQ   United States
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
Senior Member
Doug, I run everything from a modified sinewave, including the microwave. We have a 2,000 watt Vector. Hair dryer and vacuum cleaner run well too. Most tools do not like modified but I have no electric tools. There is no problem charging the laptops up, 3 of them, on the modified versions. You know our tvs run fine on the modifie sine wave. Duece got a good deal. If I was looking for a deal like he got I would also grab it. But for your and my use, we don't need it.
Dan


3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer
Re: [GMCnet] Solar Panels: Anyone try these? they look like agooddeal... [message #122509 is a reply to message #122493] Wed, 20 April 2011 16:00 Go to previous messageGo to next message
Ray Erspamer is currently offline  Ray Erspamer   United States
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
Senior Member
I FRIED my $1200 CPAP machine trying to run it on a cheap inverter, I was dang
lucky it was on warranty. I brought it in and when they turned it on the
display went nuts, they said "what the heck happened to this thing" !! I've
since purchased a travel CPAP that runs off of 12vdc.


Ray


Ray & Lisa Erspamer
78 Royale Center Kitchen
TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/




________________________________
From: Shan Rose <defconfx@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Wed, April 20, 2011 2:11:44 PM
Subject: Re: [GMCnet] Solar Panels: Anyone try these? they look like
agooddeal...



Douglas,

I personally had equipment fail from use of a modified square wave inverter. It
was a charger for a cordless drill. Also some AC motors do not like modified
square wave inverter, they run hotter and less efficiently. My DVD and flat
screen pulled 20a DC through a modified square wave. I just got a Xantrex
prowatt SW for $40, granted I cashed in $220 worth of gift cards, but still $260
for a 1000 watt pure sine wave inverter is not a bad deal. If you run any
sensitive electronics, like a computer you will need SW invetera most likely. I
for one use a PS3 as my blue ray player and small computer as well as a game
system so PSW inverter makes sense formmy applications...

Quote:
> title=Douglas Norton wrote on Wed, 20 April 2011 01:19]I am far from sold on
>pure sign wave inverters. I would like to see some testing and results. I have
>only had one item fail on a modified sign wave inverter (my kilowatt meter). I
>have run a lot of appliances on my inverter with no problems and with efficiency
>near 90%. My 19 inch LCD TV draws 1.8 amps (into inverter) at 12.8 volts. That
>works out to 24.8 watts consumed to run a TV that is rated at 25 watts. I
>probably need a pure sign wave inverter to run my microwave. It is cheaper to
>run the generator for a couple of minutes since a 2000 watt sign wave inverter
>is still too costly. I only hear rumors that it is necessary to run a microwave
>on pure sign wave.
>
>
> They say the truth will prevail. Someone surely will know the truth or have an
>inquisitive enough mind to figure out the truth about the need for pure sign
>waves. Perhaps this would be a good experiment for Myth busters to tackle.
>Will cooking a turkey in a microwave for an hour using a modified sign wave
>inverter blow up the magnetron or use more power than a pure sign wave
>inverter?
>
>
>
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Ray Erspamer 78 GMC Royale Center Kitchen 403, 3.70 Final Drive Holley Sniper Quadrajet EFI System, Holley Hyperspark Ignition System 414-484-9431
Re: Solar Panels: Anyone try these? they look like a good deal... [message #122539 is a reply to message #122501] Wed, 20 April 2011 20:30 Go to previous messageGo to next message
Duce Apocalypse is currently offline  Duce Apocalypse   United States
Messages: 824
Registered: May 2009
Location: Los angeles
Karma: 0
Senior Member

Dan


All I can say it pays to cash in credit card rewards points for eBay gift cards! the inverter is brand new in box, drop shipped from the warehouse. total cost was $261 which for a pure sine wave inverter from a major company namely Xantrex is a great deal! I saw this same inverter at We$t Marine for almost $400! if anyone wants a sine wave inverter for not a lot of scratch, definately check it out. Now will come the fun of installing it, since now I have to add some heavy gage cables, but eBay has some great deals there on left over cable too...

WD0AFQ wrote on Wed, 20 April 2011 14:49

Doug, I run everything from a modified sinewave, including the microwave. We have a 2,000 watt Vector. Hair dryer and vacuum cleaner run well too. Most tools do not like modified but I have no electric tools. There is no problem charging the laptops up, 3 of them, on the modified versions. You know our tvs run fine on the modifie sine wave. Duece got a good deal. If I was looking for a deal like he got I would also grab it. But for your and my use, we don't need it.
Dan



73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
Re: [GMCnet] Solar Panels: Anyone try these? they look like a good deal... [message #122542 is a reply to message #122539] Wed, 20 April 2011 20:39 Go to previous messageGo to next message
k2gkk is currently offline  k2gkk   United States
Messages: 4452
Registered: November 2009
Karma: -8
Senior Member

Hi, Shan.

Where was that inverter at such a good deal, Shan?

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ex-Palm Beach, 76 ~ ~ ~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~


> To: gmclist@temp.gmcnet.org
> From: defconfx@gmail.com
> Date: Wed, 20 Apr 2011 20:30:26 -0500
> Subject: Re: [GMCnet] Solar Panels: Anyone try these? they look like a good deal...
>
>
>
> Dan
>
>
> All I can say it pays to cash in credit card rewards points for eBay gift cards! the inverter is brand new in box, drop shipped from the warehouse. total cost was $261 which for a pure sine wave inverter from a major company namely Xantrex is a great deal! I saw this same inverter at We$t Marine for almost $400! if anyone wants a sine wave inverter for not a lot of scratch, definately check it out. Now will come the fun of installing it, since now I have to add some heavy gage cables, but eBay has some great deals there on left over cable too...
>
> WD0AFQ wrote on Wed, 20 April 2011 14:49
> > Doug, I run everything from a modified sinewave, including the microwave. We have a 2,000 watt Vector. Hair dryer and vacuum cleaner run well too. Most tools do not like modified but I have no electric tools. There is no problem charging the laptops up, 3 of them, on the modified versions. You know our tvs run fine on the modifie sine wave. Duece got a good deal. If I was looking for a deal like he got I would also grab it. But for your and my use, we don't need it.
> > Dan
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Re: [GMCnet] Solar Panels: Anyone try these? they look like a good deal... [message #122570 is a reply to message #122539] Thu, 21 April 2011 00:34 Go to previous messageGo to next message
Douglas Norton is currently offline  Douglas Norton   United States
Messages: 191
Registered: April 2008
Karma: 0
Senior Member
I am not against pure sign wave inverters.  I just have not seen any definitive clarification regarding the need for pure vs. modified sign wave.  My big concern is that I need low power consumption when dry camping.  I have a small modified sign wave inverter that runs my TV and laptop at over 90% efficiency and makes no fan noise.  The stand by load and fan noise from my medium and large inverters makes me weary of spending a lot on a large pure sign wave when I use under 60 watts most of the time. 

Perhaps the tale of inverters could be told as part of a tech session some time - not by me!  Like a Radio Shack customer: I got questions, someone else needs to provide answers!  

I have been told I spend too much of my wife's quilting money on GMC stuff already.  I will be authorized to go for a pure sign wave inverter after my wife sees the TV go up in smoke or attends a seminar on pure sign wave inverters.  I am sure I will eventually get one; a price under $250 is close to my "CRT"  (cant resist threshold). It may cost me hours in the fabric store. 

If there was an assurance my wife's sewing machine REQUIRED a pure sign wave inverter, I would have one already for emergency home use.  She did sew daily using a modified sign wave inverter when we spent a summer in a cabin in the mountains of Idaho.  We ran fans, microwave, fluorescentnt lights, chargers, and the laptop for most evenings over 4 months with a 400 watt modified sign wave inverter.  It died a spectacular death when I turned on the generator without disconnecting the inverter from the curcit! No animals were harmed during that event.


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Re: [GMCnet] Solar Panels: Anyone try these? they look like a good deal... [message #122571 is a reply to message #122570] Thu, 21 April 2011 01:12 Go to previous messageGo to next message
Dolph Santorine is currently offline  Dolph Santorine   United States
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma: -41
Senior Member
Doug:

There is probably nothing that you are running that would require a pure sine wave.

The typical "gotcha's" apply to modified sine wave. UPS's don't like it, because it looks to them like 90 volts or so. It will show the same on your Volt-Ohm-Meter if it's not true RMS capable.

Sometimes, computer power supplies won't like it either, but the vast majority are just fine with it. Since I look at Televisions as just part of the digital continuum in this day and age, there is probably no justification there either.

Then again, if you have a clock or a turntable (period correct for your Coach) with a synchronous motor, then maybe you just do need a pure sine wave inverter.

At that juncture, you'll be re-installing the factory 8-Track and enjoying the extra dimension that hiss and wow and flutter add to your music<G>

In fairness, I have a "pure" sine wave system in my home to power the electronics. It's full time power conditioning and transition power when we have to cut over to the generator. They are a couple of online Liebert data center grade 2KVA UPS units (nothing like the little consumer units, these things are always online. No switching transient. They are cheap on the used market, but require 96V of batteries).

The reason for modified sine wave is exactly what you're using it for.....

Dolph





On Apr 21, 2011, at 1:34 AM, Douglas Norton wrote:

> I am not against pure sign wave inverters. I just have not seen any definitive clarification regarding the need for pure vs. modified sign wave. My big concern is that I need low power consumption when dry camping. I have a small modified sign wave inverter that runs my TV and laptop at over 90% efficiency and makes no fan noise. The stand by load and fan noise from my medium and large inverters makes me weary of spending a lot on a large pure sign wave when I use under 60 watts most of the time.
>
> Perhaps the tale of inverters could be told as part of a tech session some time - not by me! Like a Radio Shack customer: I got questions, someone else needs to provide answers!
>
> I have been told I spend too much of my wife's quilting money on GMC stuff already. I will be authorized to go for a pure sign wave inverter after my wife sees the TV go up in smoke or attends a seminar on pure sign wave inverters. I am sure I will eventually get one; a price under $250 is close to my "CRT" (cant resist threshold). It may cost me hours in the fabric store.
>
> If there was an assurance my wife's sewing machine REQUIRED a pure sign wave inverter, I would have one already for emergency home use. She did sew daily using a modified sign wave inverter when we spent a summer in a cabin in the mountains of Idaho. We ran fans, microwave, fluorescentnt lights, chargers, and the laptop for most evenings over 4 months with a 400 watt modified sign wave inverter. It died a spectacular death when I turned on the generator without disconnecting the inverter from the curcit! No animals were harmed during that event.
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Re: [GMCnet] Solar Panels: Anyone try these? they look like a good deal... [message #122604 is a reply to message #122542] Thu, 21 April 2011 10:12 Go to previous message
Duce Apocalypse is currently offline  Duce Apocalypse   United States
Messages: 824
Registered: May 2009
Location: Los angeles
Karma: 0
Senior Member

Where else, but Evil Bay Razz actually they have quite a few guys with online stores selling this model all range from mid $300s to what I paid. watch the shipping though. I will post a link to the one I bought


http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=370404401910&ssPageName=STRK:MEWAX:IT

$252+ $9 S&H.



k2gkk wrote on Wed, 20 April 2011 20:39


Hi, Shan.

Where was that inverter at such a good deal, Shan?

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ex-Palm Beach, 76 ~ ~ ~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~


> To: gmclist@temp.gmcnet.org
> From: defconfx@gmail.com
> Date: Wed, 20 Apr 2011 20:30:26 -0500
> Subject: Re: [GMCnet] Solar Panels: Anyone try these? they look like a good deal...
>
>
>
> Dan
>
>
> All I can say it pays to cash in credit card rewards points for eBay gift cards! the inverter is brand new in box, drop shipped from the warehouse. total cost was $261 which for a pure sine wave inverter from a major company namely Xantrex is a great deal! I saw this same inverter at We$t Marine for almost $400! if anyone wants a sine wave inverter for not a lot of scratch, definately check it out. Now will come the fun of installing it, since now I have to add some heavy gage cables, but eBay has some great deals there on left over cable too...
>
> WD0AFQ wrote on Wed, 20 April 2011 14:49
> > Doug, I run everything from a modified sinewave, including the microwave. We have a 2,000 watt Vector. Hair dryer and vacuum cleaner run well too. Most tools do not like modified but I have no electric tools. There is no problem charging the laptops up, 3 of them, on the modified versions. You know our tvs run fine on the modifie sine wave. Duece got a good deal. If I was looking for a deal like he got I would also grab it. But for your and my use, we don't need it.
> > Dan
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Doug,

The iverter I got has a fan that turns on only if the inside gets to about 50*C or around 120 something degrees fahrenheit. its idle draw is only 600mA and is supposed to be 90% efficient. wont know for sure till I get my amp meter on it and test it under load however...


Douglas Norton wrote on Thu, 21 April 2011 00:34

I am not against pure sign wave inverters. I just have not seen any definitive clarification regarding the need for pure vs. modified sign wave. My big concern is that I need low power consumption when dry camping. I have a small modified sign wave inverter that runs my TV and laptop at over 90% efficiency and makes no fan noise. The stand by load and fan noise from my medium and large inverters makes me weary of spending a lot on a large pure sign wave when I use under 60 watts most of the time.

Perhaps the tale of inverters could be told as part of a tech session some time - not by me! Like a Radio Shack customer: I got questions, someone else needs to provide answers!

I have been told I spend too much of my wife's quilting money on GMC stuff already. I will be authorized to go for a pure sign wave inverter after my wife sees the TV go up in smoke or attends a seminar on pure sign wave inverters. I am sure I will eventually get one; a price under $250 is close to my "CRT" (cant resist threshold). It may cost me hours in the fabric store.

If there was an assurance my wife's sewing machine REQUIRED a pure sign wave inverter, I would have one already for emergency home use. She did sew daily using a modified sign wave inverter when we spent a summer in a cabin in the mountains of Idaho. We ran fans, microwave, fluorescentnt lights, chargers, and the laptop for most evenings over 4 months with a 400 watt modified sign wave inverter. It died a spectacular death when I turned on the generator without disconnecting the inverter from the curcit! No animals were harmed during that event.


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73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA

[Updated on: Thu, 21 April 2011 10:16]

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