Quote:
Originally Posted by w0mbat
Sorry Alex, just realised you mean it has to be on because it is in a remote observatory.
Ian
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Yes we switch the one here off at night.
My point is if you are not there it will run twenty four seven... So 40 watts x 24 hours x 7 days ...560 amps for a wet weak ...at 12 vlts...mmm $15000 battery bank
I think you could have it on a timer so it only comes on when you need it and then a way of giving other commands like over ride timer now that I am here.
Maybe you can get an inverter that cuts out when the batteries reach a low point and come back on when power is back up.
And maybe think 48 vlt system given that your motors when on will draw a high current..I assume.
You may get by with one panel but they are cheap and the more you have the more power you get when it is cloudy.
Alex