Module row spacing, N-S? [RE-wrenches]

[Doug Pratt]

Your free subscription is supported by today's sponsor:
-------------------------------------------------------------------
Is your computer freezing up or slowing down?
Repair corrupt files and harmful errors - protect your PC
Take a 2-minute PC health check-up at no charge!
http://click.topica.com/caaerelbz8Qcsbz9JC9a/PC Powerscan
-------------------------------------------------------------------


Jeremy, is this a grid-tie job? Then, as William points out below, plain ole
flush mounting would be fine. 

 

Cheers,

Doug Pratt

 

-----Original Message-----
From: William Miller [mailto:wrmiller at slonet.org] 
Sent: Saturday, January 28, 2006 9:41 PM
To: Doug Pratt
Subject: RE: Module row spacing, N-S? [RE-wrenches]

 

Doug:

I'm replying directly to you because my regular internet connection is down
and I can't post to the group through my dial up.  Jeremey is putting
modules on a 4:12 roof.  I replied to him earlier and asked him what the PV
tilt would be, but haven't heard back.

If this is a grid-tie installation, wouldn't we recommend he lay the modules
on the pitch and put the rows as close together as he'd like?  If it's an
off grid, then a steeper PV tilt is in order, but since the rows are already
on a 4;12, he could go muck closer since the back row will start higher.
Then it's a trig problem.

Can you post your reply to these concepts to the list for me?

Thanks,

William Miller








Jeremy, the easy answer, that's safe for all US continental latitudes, is 3
times the vertical difference between the back of one row and the front of
the next row. That'll give you enough space to avoid shading at 10am on Dec.
19th.

If space is tight, then get out the trig books, or I'm sure one of the
programs on the Solar Design Studio from Maui Solar Software covers row
spacing. 

Cheers,
Doug Pratt 
DC Power Systems


-----Original Message-----
From: Jeremy Rodriguez [mailto:allsolar at ris.net] 
Sent: Saturday, January 28, 2006 10:51 AM
To: RE-wrenches at topica.com
Subject: Module row spacing, N-S? [RE-wrenches]


I know this has been answered before but could someone please post the 
formula here?  I would have 2 rows on a 4-12 pitch roof, 18 deg slope 
correct. How far between rows?

Jeremy


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

Your free subscription is supported by today's sponsor:
-------------------------------------------------------------------
Jumpstart your love life at AmericanSinglesR.com.  
Meet someone in your area today. Millions of member profiles. 
Create a profile, post photos and search for free.
http://click.topica.com/caaemrrbz8Qcsbz9JC9f/Spark Network
-------------------------------------------------------------------

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

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

List rules & how to change your email address: www.mrsharkey.com/wrenches/etiquette.php

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

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

For Topica's complete suite of email marketing solutions visit:
http://www.topica.com/?p=TEXFOOTER
--^----------------------------------------------------------------