Subj : good info 2 share
To   : All
From : Skuz
Date : Thu Jun 01 2017 23:59:05

 Msg  : 124 of 124                          Rcv Pvt Loc
 From : White-Knight-32-KS                                  01 Jun 17 23:49:19
 To   : Skuz
 Subj : local solar batteries
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Hiya Skuz!

Why I hadn't decided yet, on the batteries is this mess.  Price to start up
weight and lifetime.

First, I was going to have my battery array & inverter in a shed, between my
house and panels, and beside my driveway.  Driveway?  Easy enough, in case I
screw up or other, I can jump start or jump charge from this shed, if need
be!  I likely have put way too much thought into this, but nobody takes a
dump, without a recovery/escape plan!  I plan to get just a wooden temporary
mower type shed, that I can take with me, when I move.  I know full well that
they are flimsy and I'll need to get timbers to beef up the side walls & make
battery racks with, for the weight.  And mount the charge controller &
inverter on the back wall.

These days some inverters are wifi, cool, but be careful of IoT stuff!  Ever
since Nov. of 2004, there has really been no wifi security & WPA2PSK is about
as broken as last year's demo derby car.  If you know what your'e doing, you
can brute force out the temporal key, in it!

Also, some E-Bay inverters I've seen lately have charge controllers built in!
I also believe in spare inverters, heat is the usual enemy & I'm always
adding extra cooling to stuff.  Fans & ventilation (hydrogen gas) are needed
& need to be planned for.  I want my shed safe enough to smoke in and yet not
freeze!

The batteries themselves, well, I hear of folks using 6 volt deep cycle, in
series pairs, in place of single 12 ones.  The why is simple, they are close
to the same size, so the individual 6 v cell is about double and so is the
'ampacity', amp capacity.  I've yet to decide if that is worth the cost, as 6
volt batteries have been horribly high here.  And for the most part, I'm only
looking at locally available stuff, at my local 'speed shop' (car parts)
store.  I'm really trying to focus on space, price, weight, and can I get the
two walls to hold it?  That's another thing, that folks just have to decide
on, for themselves, because 12 Vdc system only drives 120 Vac inverters, and
likewise, if you go 240 Vac inverters, you just doubled your expense in
batteries and panels, and likewise in 48 Vdc inverter systems, you just
quadrupled those two needs again!  This is where the expense is!  And why I
went 12 Vdc system, to drive only 120 Vac inverters!  Going solar power is
much more than just numbers, you have to mix your taste or needs & wants, to
what's actually affordable for you!  I can't stress that enough!

White-Knight-32-KS
KA0YCU

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