| Re: [GMCnet] Solar Panels: Anyone try these? they look like agooddeal... [message #121850] |
Thu, 14 April 2011 20:16  |
Douglas Norton
Messages: 191
Registered: April 2008
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The power consumption is usually listed on the back of the tv. My LCD tv runs fine on a modified sign wave inverter; I do not know if a sign wave inverter is needed for an LED tv; probably not. LED tv sets in general do use less power than other types; plasma uses the most. I checked 19 inch units at Wallmart and Costco. Walmart does list power consumption on their web site. They have a Visio that uses 24 watts
(VIZIO 19" Razor Class LED-LCD 720p HDTV 60Hz) but I found a LCD that also used 24 watts and one that used 54 watts. Costco does not list watts on their website but when I checked them in the store, LED units seemed more efficient when I checked labels (near the 40% lower consumption often advertised). Look for Energy Starr ratings but look on the back of the set. My 25 watt LCD unit draws a bit over 2 amps. at the input of my 400 watt inverter.
--- On Thu, 4/14/11, sgltrac@gmail.com <sgltrac@gmail.com> wrote:
From: sgltrac@gmail.com <sgltrac@gmail.com>
Subject: Re: [GMCnet] Solar Panels: Anyone try these? they look like agooddeal...
To: gmclist@temp.gmcnet.org
Date: Thursday, April 14, 2011, 5:21 PM
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
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| Re: [GMCnet] Solar Panels: Anyone try these? they look like agooddeal... [message #122001 is a reply to message #121850] |
Sat, 16 April 2011 08:58  |
Larry C
Messages: 1168
Registered: July 2004
Location: NE Illinois by the Illino...
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Senior Member |
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Just a thought of some former knowledge....
Inverters are for general use and Mod Sine waves generally are used for lighting. Some electronic, esp solid state run more effeciently and cooler with sine wave inverters.
Some electronics will not run at all on Mod sinewave and you need to watch your electronic temperatures as Mod Sinewave tends to make them run hot.
Mod Sine wave inherantly use more power because you are not running an efficient sine wave. The Modified sine wave is more or less a square cut wave where the actual sine wave is a gradual curved sinewave.
On some things like light bulbs, Incandescent ( some of the new florescents won't run on them ) don't care, filament bulbs will run on DC. The ballasted florescents will run but hotter but the RV type with the electronic ballast may have some problems and again heat.
Certain TVs will run on mod Sine, others make noise, flicker, get hot, picture affects....
Because of legal comps, the suggestion is always go Sinewave for your electronics/tv/computers because Mod Sine can be destructive in time, especially with cheaper electronics. The Easiest way to go is buy 12v DC componenets and eliminate the inverter.
my thoughts
Gatsbys' CRUISER  08-18-04
74 GLACIER X, 260/455-APC-4 Bagg'r
Remflex Manifold gaskets
CampGrounds needed, Add yours to "PLACES" />
http://www.gmceast.com/travel
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| Re: [GMCnet] Solar Panels: Anyone try these? they look like agooddeal... [message #122012 is a reply to message #122001] |
Sat, 16 April 2011 11:35 |
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Or you can just buy a pure sine wave inverter. They can be had cheap enough. I got a ProWatt SW from Xantrex which is a 1kw pure sine inverter off eBay for about $260. After all my discounts and gift cards I paid only 40 bux  so just gotta wait till it arrives to try it out. Its gonna be pretty hard to find a decent hdtv that runs on 12v DC...
| Larry C wrote on Sat, 16 April 2011 08:58 |
Just a thought of some former knowledge....
Inverters are for general use and Mod Sine waves generally are used for lighting. Some electronic, esp solid state run more effeciently and cooler with sine wave inverters.
Some electronics will not run at all on Mod sinewave and you need to watch your electronic temperatures as Mod Sinewave tends to make them run hot.
Mod Sine wave inherantly use more power because you are not running an efficient sine wave. The Modified sine wave is more or less a square cut wave where the actual sine wave is a gradual curved sinewave.
On some things like light bulbs, Incandescent ( some of the new florescents won't run on them ) don't care, filament bulbs will run on DC. The ballasted florescents will run but hotter but the RV type with the electronic ballast may have some problems and again heat.
Certain TVs will run on mod Sine, others make noise, flicker, get hot, picture affects....
Because of legal comps, the suggestion is always go Sinewave for your electronics/tv/computers because Mod Sine can be destructive in time, especially with cheaper electronics. The Easiest way to go is buy 12v DC componenets and eliminate the inverter.
my thoughts
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73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
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