Sw workaround [RE-wrenches]

Bob-O Schultze, Electron Connection econnect at snowcrest.net
Sun Dec 31 14:41:01 EST 2000


<x-flowed>Yo Allen ETAL,
You've pretty much nailed all the reasons I can think of why folks go 
with 12V inverters, but given that there ARE some compelling reasons, 
why can't 12Vers have a great inverter/charger? What are the options, 
a PS? Sorry, it can't hold a candle to the SW without some major 
changes from Mr Xantrex.
Bob-O

>Wrenches,
>    Maybe I'm missing something, and I'm happy to be told so by others whose
>experience I respect.  We have never sold a SW2512, so we can't miss it
>much.  To me, there are only three or four reasons to use 12 volts:
>1. RVs (which we generally avoid, leaving this market to RV specialists);
>2. Tiny cabin systems with little expectation of expanding;
>3. Folks on tiny budgets, as there's more used 12V stuff available, as it's
>an obsolete standard;
>4. Folks with old (10+ years) systems, who by now have 12V pumps, a 12V
>SunFrost, etc., and are pretty much locked in to staying 12V.
>    It seems to me that 12V was the original standard because in the old
>days reliable inverters hadn't come along, DC was the only option, and 12V
>and RV stuff was all that was available.  Nowadays inverters are reliable,
>systems are generally larger, and DC-DC converters efficiently handle the
>small stuff.  I'm missing why anyone would build a new system around less
>than 24V.  The need to occasionally run DC power moderate distances (such as
>for water pumping, which we do a lot of) cries out for higher voltage/lower
>current voltages.
>    What are some examples of installations where building a 12V power
>system is the *best* choice?
>Thanks
Allan at Positive E

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