[RE-wrenches] Invert first?

[Bob-O Schultze]

And, of course, made in China. Given other good choices, that loses me right there.

On Oct 2, 2011, at 10:36 AM, Dan Fink wrote:

Brand new, and it is shipping now. XW-MPPT80-600. It certainly raised my eyebrows. But it's so new that i don't know of anyone who has installed one yet.

Dan Fink
Executive Director;
Buckville Energy Consulting
Buckville Publications LLC
NABCEP / IREC / ISPQ accredited Continuing Education Providers
http://www.buckville.com/
info at buckville.com
970.672.4342 (voicemail)
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penobscotsolar at midmaine.com wrote:
> Dan,
>   Is the Xantrex controller available/released yet? I've used the Classic
> 250 and the Apollo HV but have yet to see/use a Xantrex 600 Voc controller.....will anyone who has used one chime in and share their
> experience ?
>> Hi Eric;
>> 
>> I'll be very interested to hear what others on this list who have far
>> more experience than me in large systems have to say about this.
>> 
>> But my first thought is, go DC. The new Xantrex XW high voltage MPPT
>> charge controller will take up to 600 Voc from PV and put it into a
>> standard battery bank, that roughly puts you realistically at just 30
>> amps in your DC lines.
>> 
>> How were you planning to invert to AC at the PV array? Enphase etc? How
>> do you do battery backup with an Enphase system (I have no idea, but am
>> eager to learn from others here)? Any standard islanding grid-tie
>> inverter will need to be right next to the battery bank.
>> 
>> Dan Fink
>> Executive Director;
>> Buckville Energy Consulting
>> Buckville Publications LLC
>> NABCEP / IREC / ISPQ accredited Continuing Education Providers
>> http://www.buckville.com/
>> info at buckville.com
>> 970.672.4342 (voicemail)
>> 970.373.1311 (fax)
>> 
>> 
>> 
>> Eric Thomas wrote:
>>> Wrenches,
>>> 
>>> We are designing a super high end grid-tied w/ battery backup system for
>>> a customer. Array will be ~15kW; pole or stand alone structure mounted;
>>> 250' from home/batteries. My question is: does it make any sense to
>>> invert the power at the array and use this ac to make the long run to
>>> the batteries THEN connect to a typical battery charger rather than a dc
>>> charge controller? Im mostly concerned with huge dc conductors making
>>> this run across the property. Havent delved into the specific design
>>> enough to size said conductors yet, or specify any equipment, but wanted
>>> to know if im barking up the wrong tree ir not.
>>> Thanks for the insight.
>>> 
>>> Eric Thomas
>>> Founder
>>> Solar Epiphany LLC
>>> NABCEP Certified PV Installer
>>> WA Electrical Contractor # SOLAREL911NR
>>> 
>>> 
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