Xantrex GT3 qvestion [RE-wrenches]

[Mark Edmunds]

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Hi Marco and Kelly,

You are right, 3.5kW should be fine, especially in a tropical climate!
Even if there was a rare cold day the GT actively limits its power to 3
kW, and can run at that power level continuously without de-rating.

Regards,

Mark


Mark Edmunds
Xantrex Technology Inc.

-----Original Message-----
From: Kelly Keilwitz [mailto:kelly at whidbeysunwind.com] 
Sent: Wednesday, May 11, 2005 9:51 PM
To: RE-wrenches at topica.com
Subject: Re: Xantrex GT3 qvestion [RE-wrenches]


Hi Marco,
We recently installed a 3.5KW system using the GT3.0 with the blessing
of Xantrex folks.
There's a system calculator on their website that tells all -
www.xantrex.com/support/gtsizing/ should get you there. The sizing
program allowed up to 4.4 KW, in 2 strings for that job.
-Kelly

Kelly Keilwitz, P.E.
Whidbey Sun & Wind
Renewable Energy Systems
NABCEP Certified PV Installer
987 Wanamaker Rd, Coupeville, WA 98239
Ph & Fax: 360.678.7131
sunwind at whidbeysunwind.com

----- Original Message -----
From: "Marco Mangelsdorf" <marco at pvthawaii.com>
To: <RE-wrenches at topica.com>
Sent: Wednesday, May 11, 2005 7:24 PM
Subject: Xantrex GT3 qvestion [RE-wrenches]


>
> The GT3 manual recommends a max PV array power (I assume they're 
> referring to STC output) of 3300 watts.  I find this to be on the 
> conservative side, especially for places such as here in Hawai'i which

> do not have low
ambient
> temps...aside from locations high on the flanks of our friendly
volcanoes.
> Does our esteemed Xantrex Wrench or any of the rest of you have a 
> problem with a 3.4 kW to 3.5 kW array size for this inverter in a 
> tropical
climate?
>
> Marco Mangelsdorf
> President
> ProVision Technologies, Inc.
> 69 Railroad Avenue, Suite A-7
> Hilo, Hawaii 96720 USA
> (808) 969-3281, fax 934-7462
> www.provisiontechnologies.com
>

Y

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