hybrid grid tie [RE-wrenches]

[Jeffery Wolfe, Global Resource Options]

 Keith wrote:
"Anyone tired or thought of this application?"
_______________________
Count me in as "tired"

If you're talking about back-feeding the AC out on the inverter, this sounds
like a smoke producing situation to me. Cannot put AC back in where it comes
out on any inverter I know of.

I would recommend using (3) 24V modules in series if this is a warm weather
application (cannot do this in cold regions as you violate the 145VOC limit
on the MX60). With this voltage level, you can get down to a "reasonable"
wire size. This is much easier than inventing a custom. And MX60's cost less
than SunnyBoys as a charge controller. If you were 400' away, I might feel
differently, but I'd go for the standard system.

Jeff
Jeffery D. Wolfe, P.E.
NABCEP Certified Solar PV InstallerT
Global Resource Options, LLP, Solar  Wind  Energy Solutions
A Woman-Owned Limited Liability Partnership
601 Old River Road, Suite 3, White River Junction, VT 05001-9030
800-374-4494 x107 Toll Free     802-295-4415 x107 Phone      802-295-4417
Fax
Jeff at GlobalResourceOptions.com <mailto:Jeff at GlobalResourceOptions.com> ,
www.GlobalResourceOptions.com

Distributor for:
BP Solar - photovoltaic panels
SMA - Inverters
UniRac - PV racking systems
Outback Power - Battery based inverters and controllers
Xantrex - Inverters
Rolls - Batteries
Concorde - Sealed Batteries
Other fine products for renewable energy






-----Original Message-----
From: Keith Cronin [mailto:sales at islandenergy.net] 
Sent: Tuesday, February 10, 2004 3:55 AM
To: RE-wrenches at topica.com
Subject: hybrid grid tie [RE-wrenches]


Hello Wrenches

Here is a situation I need help with. I have a client who wants grid tie and
battery back up. The location for the array will be on a garage
approximately 260 feet away. It will be 20- 160 watt modules. The
inverters/batteries/control center will be in the main house basement.
Is it appropriate, due to the huge voltage drop and cost of 4/0 wire, to
install a sunnyboy 2500 at the garage, and feed the output of the Outback
stacked inverter system? I think I could avoid buying a charge controller
and save some dough, and also save $ on the wire run. It will accomplish the
goal of battery backup, which the client desires. Will this work? Anyone
tired or thought of this application?

Thanks

 

 

Keith Cronin

President

Island Energy Solutions Inc

318A Kuulei Rd

Kailua, HI 96734

808-262-3268 Tel

808-263-0338 Fax

www.islandenergy.net

 

 

 


[Non-text portions of this message have been removed]

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com
--^----------------------------------------------------------------
This email was sent to: michael.welch at homepower.com

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9.bWljaGFl
Or send an email to: RE-wrenches-unsubscribe at topica.com

TOPICA - Start your own email discussion group. FREE!
http://www.topica.com/partner/tag02/create/index2.html
--^----------------------------------------------------------------