I remain shy about Brand X but I hear nothing but good news about these XW's so
I'm getting close to taking the plunge. Regarding DC to AC battery based
conversion efficiency the good rule of thumb for O-T-G systems is 50% STC to AC
this considers batteries at 1/2 life. You will surely do better out of the gate
and near the end of battery life you will do worse. For years I balked at this
50% travesty but time again it has proven to be pretty darn close to reality.
Consider real life in the heat and minor dust STC - true DC output is perhaps
as good as 85%, inverter 95% (at best), dust 5-10% loss, wire and connection
losses 2-5%, battery in (10%) and out (10%) losses and it all adds up. However,
if you're in float most of the time you might be closer to 65% STC - AC.
>From the Solar, Wind and Hydro powered office of Jeff Oldham/Regenerative
>SOLutions
____________________________________________________________
Obama Urges Homeowners to Refinance
If you owe under $729k you probably qualify for Obama's Refi Program
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