XW [RE-wrenches]

[Ken Schaal]

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CommonWealth Solar  now has several months experience with an XW 4860 
package with generator control ( Kohler 6.5 ), replacing a Y2K Trace dual SW 
4048 Power Panel. ---see our post fron 2/7/08 for details.

Xantrex resolved the glitch with the ' grid reconnection under generator 
input' and we have tested, for several days, a simulated grid outage, with 
flawless performance, including grid reconnect while generator was supplying 
house loads and charging battery.
Thanks to Charles in Tech support and the engineers that refined  the 
software.

A second system is set to go in, and  third and forth XW systems are not far 
behind, assuming the economy doesn't go into free fall !

Regarding sealed batteries---- with the excellent generator control with the 
XW, and the enlarged, now 5 KW, half on a Wattsun tracker, PV array, we 
decided to use 4 -250 amp.hr AGM's from Deka East Penn. Probably should have 
used Gels, on second thought-----Working well, even when powering a small 
ground source heat pump in 30-40* weather ( nites). Generator run times 
quite reasonable.
So the new Surrettes are interesting.

My thoughts concerning Solar City are in the comments section. but William 
stole my thunder-- no one will put 30K + on your roof without a second 
mortgage !
And when you can't pay your first or second mortgage, because you haven't 
done your homework (an energy audit) or your energy conservation,SHW, 
shading, window insulation, etc. then the real profit emerges. Shame on 
Morgan Stanley for backing this scheme-- Did we expect better?

Ken






----- Original Message ----- 
From: "Todd Cory, Mt. Shasta Energy Services" <toddcory at finestplanet.com>
To: "Wrenches" <RE-wrenches at topica.com>
Sent: Friday, April 11, 2008 12:36 PM
Subject: XW [RE-wrenches]


>
> I need some feedback from wrenches that have installed XW systems. I am 
> looking at doing one for a customer this summer, but I have heard from 
> some installers that have had problems. Are there wrenches that would care 
> to share their experiences?
>
> Todd
>
>
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>
> 


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