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Getting my head around Solar

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5 minutes ago, Askari said:

One would hope that 2 batteries would be able to run a small light for a night and a TV for an hour or two....

300W for television is rather a lot. For small solar systems, you want to downsize to something in the range of a 32" or 40" LCD with LED backlight, those run at a more reasonable 50W or so.

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  • Hi Askari, I think the guys on the forum will need a hellova lot more info regarding your current consumption and habits, and how much you are prepared to sacrifice, before being able to assist i

  • ... the Samil inverters in your link are for Grid Tie applications (where you use Eskom as your battery), not Off Grid applications - so not useful if the plan is to get rid of Eskom completely. 

  • Chris Hobson
    Chris Hobson

    I have decided that in a off-grid situation you decide on your batteries first (probably your biggest cost) and then select a compatible inverter and round off with some good panels.

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18 minutes ago, Chris Hobson said:

I have a 42" plasma I was given. I cannot say I have noticed that it is particularly power hungry

From Goggles...Plasma vs LCD
 
"In plasma HDTVs, the phosphors that create the image on the screen light up themselves, and don't require back-lighting. This doesn't mean it's more efficient than backlit LCD screens, though. On the contrary, plasma panels are much heavier than both CCFL- and LED-backlit LCDs, and consume much more power."
On 1/29/2018 at 9:39 AM, Askari said:

1) My calculations are stupid. 2) The batteries are not fit for purpose.

Jip, start with 1.

No 2 ... any chance you have this type of battery?

If so they are UPS batteries, about +-260 cycles, on standby on a UPS, about 5 years. On solar ... you are heading for new ones soon. Been there, done that. 

 

Oeps.jpg

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