Sharp SunVista and new panels [RE-wrenches]

[Jeff Clearwater, Village Power Design]

<x-flowed>
Hi All,

So picking up on an old (11/03) thread ...  On the Sharp 140/70 
triangular panel system ...

So given this:

At 3:44 PM -0800 11/8/03, William Korthof wrote:
>Actually, the angle to the ridge of a normal hipped is not 45 degrees.
>Due to the pitch of the two planes that meet (for a 90 degree corner),
>the angle from the bottom of the roof (gutter) to a hip ridge is always
>greater than 45 degrees; the steeper the roof, the greater the angle,
>all the way up to two vertical planes (walls), which meet at a 90 deg.
>
>The Sharp triangles mirror that reality with dimensions of 46" x 39".

Then doesn't that mean that the Sharp 140/70 system is only good for 
hip roofs at one certain roof pitch?   I don't get how you can have a 
set triangular system that would cover all roof pitches.  For 
anything but that pitch, wouldn't you have array lines diverging from 
the hip or valley?

So how about a second wave of discussion on actual experience in the 
filed with the Sunvista and the practical applicability of the 140/70 
panels?

Thanks!

Jeff C.
Village Power Design


At 02:44 PM 11/6/2003, mlafferty at universalenergies.com wrote:
>>Andy C wrote:
>>
>>>   I have been hired for a new residential PV project that seems to cry
>>out
>>for the new trangular Sharp panels and their new 3500 SunVista inverter
>>(Hip roofs meeting at 45 degree angles and half the panels will face SE
>>and half will face SW.)
>>
>>So does anybody out there have some experiences to report with this
>>equipment yet?
>>
>>Andy:
>>
>>First things first.... How's the budget?
>>
>>The triangular shape of roofs is a direct conflict with the traditional
>>rectangular shape of modules.  Always has been.  My hat is off to Sharp
>>for bringing a "triangular" shaped piece of glass to market to address
>>this issue!
>>
>>Our options are limited when putting together a system design and
>>installation under these circumstances.  Some of the limiting factors
>>are:  Desired System Size, Aesthetics, Available and Suitable Roof
>>Surface, and COST.
>>
>>While I have no deployment experience with either of the products you
>>mention yet, I have explored various scenarios and layouts using them.
>>Layouts look good "on paper".  Quoted costs become something else.
>>Understanding project budget limitations is crucial to the process.
>>
>>I hope this factor changes for the better so manufacturers are
>>encouraged to develop products meeting this very real issue facing each
>>of us in the future.
>>
>>Pray for Sun!
>>
>>Matt Lafferty
>>Universal Energies Institute
>>mlafferty at universalenergies.com
>>(916) 422-9772
>>(916) 628-7694 Cell
>>(916) 914-2247 Fax
>>www.universalenergies.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
>
>- - - -
>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


-- 
~~~~~~~~~~~~~
Jeff Clearwater
Village Power Design Associates
Sustainable Energy & Water Solutions for Home & Village
http://www.villagepower.com
gosolar at villagepower.com

877-SOLARVillage
413-256-6777,  Fax 413-825-0372
61 Baker Rd
Shutesbury, MA 01072

PO Box 115
Boonville, CA 95415
707-895-9015, Fax 707-897-0024
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`~

- - - -
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
--^----------------------------------------------------------------


</x-flowed>