[RE-wrenches] Spacing between ground mounted sub-arrays at 48.5 degrees N latitude

Chris Mason cometenergysystems at gmail.com
Sun Feb 16 14:08:38 PST 2014


I use Sketchup for these calculations now. It will do real shadows at any
time of any day you want.
If you are not familiar with it, send me the exact Google Earth coordinates
and I will mock something up for you.


On Sun, Feb 16, 2014 at 5:35 PM, Bob Clark <bclark at solar-wind.us> wrote:

> Wrenches:
>
> I have a customer who wants 40 solar modules on ground mounts (not poles)
> in an area that slopes to the ESE at 7 degrees.  Putting these modules on
> one ground mount assembly so that the modules are in a 0 degree slope East
> to West would leave the east end about 20 feet in the air.  Not acceptable
> as the customer wants a profile as low as possible for aesthetic reasons
> plus the wind can be quite strong on occasion.
>
> So, I am trying to figure out how far apart 5, 8 module sub-arrays
> (landscape orientation 2 E-W by 4 N-S tilted at 35 degrees S from the
> horizontal) would have to be North to South and East to West so that they
> are low profile yet do not shade each other on the winter solstice at 48.5
> degrees N latitude.  These calculations are complicated by the ground
> sloping to the ESE at 7 degrees.
>
> Can anyone point to an online calculator that takes into account the slope
> of the ground?  Or can anyone help me with the geometry of this situation.
>  I have gone around in circles and thoroughly confused myself.
>
> Thanks in advance.
>
> Bob Clark
> bclark at solar-wind.us
>
>
>
> _______________________________________________
> List sponsored by Home Power magazine
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> Change email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive:
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out participant bios:
> www.members.re-wrenches.org
>
>


-- 
Chris Mason
President, Comet Systems Ltd
www.cometenergysystems.com
Cell: 264.235.5670
Skype: netconcepts
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20140216/99a5b3d5/attachment-0003.html>


More information about the RE-wrenches mailing list