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The RVer's Open Forum / GENERAL RV DISCUSSIONS / Solar Panel to power TV
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Larry
User ID: 8722703
Dec 28th 11:16 AM
How large of a Solar panel (Wattage) would I need, to Run a Satellite receiver that pulls 25W. I was thinking One with 15Watt 1Amp Max What do Ya' Think. Thanks !
JD
User ID: 8722703
Dec 28th 11:16 AM
Unless I'm missing something, you need a solar panel with output equal to or greater than your load. If that receiver is 25W continuous your battery is going to slowly discharge the whole time your receiver is on. You're taking 25 out and putting 15 [perhaps less, there are always losses and the 15 is probably "max"] back in, a deficit of 10W. This assumes your receiver is on all the time. If you only watch TV a couple hours at a time and shut the receiver off when you don't, then 15 would probably work. If you want the receiver on all the time, I think you need a bigger panel or two of those 15s.
God Bless, jd
Mike
Administrator
Dec 28th 11:35 AM
Here are a couple of websites with useful information to help answer your question.
http://www.donrowe.com/inverters/inverter_faq.html
http://store.solar-electric.com/
Also, you can try a 'RV Solar' search on Google and find a lot more.