Different perspectives, was: Rain-X on module glass? [RE-wrenches]

[Christopher Freitas --- OutBack Power]

Good point Windy - This is one of the benefits of wiring up the PV array 
for 72 vdc nominal (three 24vdc modules in series) with a 48 vdc battery 
system for instance (or lower).

Another way to look at it - as long as the peak power point of the PV 
array stays above the battery voltage - the losses are minimal 
(proportional to the temperature).  If the peak power point drops below 
the battery voltage - then you start losing lots more power.  

When you start with a peak power point of 90 vdc or so - it has to be 
really hot for it to get down to the 50 volt level ;-)

Christopher Freitas
OutBack Power Systems, Inc.
cfreitas @ outbackpower.com  
www.outbackpower.com
Arlington WA USA
Tel 360 435 6030  

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