Re: [RE-wrenches] Mounting on rock

[Tump]

Here in Maine, we do this all the time.  Drill, Epoxy, Erect! For more info 
please contact me off list. Tump
> On May 19, 2018, at 12:42 PM,  
>  wrote:
> 
> Aaron, Have you considered drilling into the rock and gluing anchor bolts or 
> 'pinning the rock with rebar and building rebar cage and concrete on that? 
> There are ways but engineering supervision is required. Good Luck!
> 
> Bruce Fiero
> W: Willpower Electric, LLC <http://www.willpower-electric.com/> 
> 
> CCB 191852
> Oregon Electrical Contractor C681
> NABCEP Certified Solar (PV) Installer 031409-38
> Energy Trust of Oregon Trade Ally Solar (PV) Installation & Energy Efficient 
> Commercial Lighting Programs  
> 
>  
> 
>  
> 
> 
>  Original Message 
> Subject: Re: [RE-wrenches] Mounting on rock
> From: David Katz mailto:dk...@backwoodssolar.com>>
> Date: Sat, April 14, 2018 8:26 am
> To: RE-wrenches  <mailto:re-wrenches@lists.re-wrenches.org>>
> 
> Aaron,
> I have seen large pole mounts in Portugal in an above ground ring of concrete 
> 3 feet high and 6 feet in diameter. I would get an engineers opinion on the 
> size but that would be easier than digging a hole in rock. 
> David Katz
> 
> On Thu, Apr 12, 2018 at 6:27 AM Aaron Mandelkorn  <mailto:reoso...@gmail.com>> wrote:
> Hi all,
> 
> I have a customer that requires a mounting option I have yet to encounter.  
> His site sits on top of of a massive hill of granite.  It is relatively flat. 
>  Are there any mounting options that could work here?  We are only talking 
> about (12) to (16) modules for an off grid array.  Is there anything that can 
> bolt to rock?  I typically use dpw or Mt solar pole mounts but can't imagine 
> how these options could work.  Any thoughts? 
> 
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com <http://www.reosolar.com/>
> Off Grid Depot
> www.offgridnow.com <http://www.offgridnow.com/>
> 970-596-3744
> 
>
> ___
> List sponsored by Redwood Alliance
> 
> List Address: RE-wrenches@lists.re-wrenches.org 
> <mailto:RE-wrenches@lists.re-wrenches.org>
> 
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org 
> <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org>
> 
> List-Archive: 
> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html 
> <http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html>
> 
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm>
> 
> Check out or update participant bios:
> www.members.re-wrenches.org <http://www.members.re-wrenches.org/>
> 
> -- 
> David Katz Sent from Gmail Mobile
> ___
> List sponsored by Redwood Alliance
> 
> List Address: RE-wrenches@lists.re-wrenches.org 
> <mailto:RE-wrenches@lists.re-wrenches.org>
> 
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org 
> <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org>
> 
> List-Archive: 
> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html 
> <http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html>
> 
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm>
> 
> Check out or update participant bios:
> www.members.re-wrenches.org <http://www.members.re-wrenches.org/>
> 
> ___
> List sponsored by Redwood Alliance
> 
> List Address: RE-wrenches@lists.re-wrenches.org
> 
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
> 
> List-Archive: 
> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
> 
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
> 
> Check out or update participant bios:
> www.members.re-wrenches.org
> 

> t...@swnl.net 
> mailto:t...@swnl.net%22%20%5Co%20%22blocked::mailto:t...@swnl.net>  
>  www.SWNL.net 
> http://www.swnl.net/%22%20%5Co%20%22blocked::http://www.swnl.net/>
> Solarwinds Northernlights   
>Serving Mid Coast Maine & Northern California
>  207-832-7574   Cl. 610-517-8401  
> 
>   Blair "T

Re: [RE-wrenches] Mounting on rock

[bruce]

Aaron, Have you considered drilling into the rock and gluing anchor bolts or 'pinning the rock with rebar and building rebar cage and concrete on that? There are ways but engineering supervision is required. Good Luck!Bruce FieroW: Willpower Electric, LLC CCB 191852Oregon Electrical Contractor C681NABCEP Certified Solar (PV) Installer 031409-38Energy Trust of Oregon Trade Ally Solar (PV) Installation & Energy Efficient Commercial Lighting Programs    


 Original Message 
Subject: Re: [RE-wrenches] Mounting on rock
From: David Katz <dk...@backwoodssolar.com>
Date: Sat, April 14, 2018 8:26 am
To: RE-wrenches <re-wrenches@lists.re-wrenches.org>

Aaron,I have seen large pole mounts in Portugal in an above ground ring of concrete 3 feet high and 6 feet in diameter. I would get an engineers opinion on the size but that would be easier than digging a hole in rock. David KatzOn Thu, Apr 12, 2018 at 6:27 AM Aaron Mandelkorn <reoso...@gmail.com> wrote:Hi all,I have a customer that requires a mounting option I have yet to encounter.  His site sits on top of of a massive hill of granite.  It is relatively flat.  Are there any mounting options that could work here?  We are only talking about (12) to (16) modules for an off grid array.  Is there anything that can bolt to rock?  I typically use dpw or Mt solar pole mounts but can't imagine how these options could work.  Any thoughts? Aaron MandelkornPresident / FounderRenewable Energy Outfitterswww.reosolar.comOff Grid Depotwww.offgridnow.com970-596-3744     ___ List sponsored by Redwood Alliance  List Address: RE-wrenches@lists.re-wrenches.org  Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org  List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html  List rules & etiquette: www.re-wrenches.org/etiquette.htm  Check out or update participant bios: www.members.re-wrenches.org  -- David Katz Sent from Gmail Mobile ___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org




___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

[RE-wrenches] Mounting on rock

[Hilton Dier, III]

If it were me, I'd buy a case of Red Head A7 anchoring adhesive:
https://www.fastenal.com/products/details/0228790

Get an engineer to do the static load calculations and design the
attachment disk and bolt pattern.  Weld a big disk with holes around the
edge and gussets to the bottom of your pole. Drill however many holes of
whatever size the eng says into the rock and put in some B-type threaded
rod with the A7. Washers and nuts above and below the disk to level it.
Pack underneath it with concrete if you want.

Granite is a great base if it is flat and solid.
___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[Dana]

The last time I looked at an engineered ballasted on the ground type of mount:

90 MPH micro burst/120 MPH winds came in at 18 # of ballast per sqft of module 
on a 38 deg rack with the leading edge at 3’ AFG. This was simple on flat 
ground. 

 

Back to the rock situation:

I would suspect drilling rebar at opposing angles and creating a concrete pad 
with a rebar cage on a rock out-cropping would be a very stable platform 
depending on access to the location. I have hired a concrete pump trailer  to 
overcome the 150’ distance from truck access to the array location.

 



Dana Orzel  Great Solar Works, Inc. 

C - 208.721.7003   d...@solarwork.com

Idaho Contractor - # 028765 Idaho PV # 028374

NABCEP # 051112-136<http://www.solarwork.biz> 
www.solarwork.biz

"Responsible Technologies for Responsible People since 1988"  

P Please consider the environment before printing this email.

 

 

From: RE-wrenches  On Behalf Of 
David Katz
Sent: Saturday, April 14, 2018 9:26 AM
To: RE-wrenches 
Subject: Re: [RE-wrenches] Mounting on rock

 

Aaron,

I have seen large pole mounts in Portugal in an above ground ring of concrete 3 
feet high and 6 feet in diameter. I would get an engineers opinion on the size 
but that would be easier than digging a hole in rock. 

David Katz

 

On Thu, Apr 12, 2018 at 6:27 AM Aaron Mandelkorn mailto:reoso...@gmail.com> > wrote:

Hi all,

 

I have a customer that requires a mounting option I have yet to encounter.  His 
site sits on top of of a massive hill of granite.  It is relatively flat.  Are 
there any mounting options that could work here?  We are only talking about 
(12) to (16) modules for an off grid array.  Is there anything that can bolt to 
rock?  I typically use dpw or Mt solar pole mounts but can't imagine how these 
options could work.  Any thoughts? 

Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com <http://www.reosolar.com> 
Off Grid Depot
www.offgridnow.com <http://www.offgridnow.com> 
970-596-3744



___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org 
<mailto:RE-wrenches@lists.re-wrenches.org> 

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> 

Check out or update participant bios:
www.members.re-wrenches.org <http://www.members.re-wrenches.org> 

-- 

David Katz Sent from Gmail Mobile

___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[David Katz]

Aaron,
I have seen large pole mounts in Portugal in an above ground ring of
concrete 3 feet high and 6 feet in diameter. I would get an engineers
opinion on the size but that would be easier than digging a hole in rock.
David Katz

On Thu, Apr 12, 2018 at 6:27 AM Aaron Mandelkorn  wrote:

> Hi all,
>
> I have a customer that requires a mounting option I have yet to
> encounter.  His site sits on top of of a massive hill of granite.  It is
> relatively flat.  Are there any mounting options that could work here?  We
> are only talking about (12) to (16) modules for an off grid array.  Is
> there anything that can bolt to rock?  I typically use dpw or Mt solar pole
> mounts but can't imagine how these options could work.  Any thoughts?
>
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com
> Off Grid Depot
> www.offgridnow.com
> 970-596-3744
>
>
> ___
> List sponsored by Redwood Alliance
>
> List Address: RE-wrenches@lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive:
> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
>
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> www.members.re-wrenches.org
>
> --
David Katz Sent from Gmail Mobile
___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[Jesse Dahl]

I see installs like this all over lake of the woods in Canada. Maybe a Canadian 
installer can lead you in the right direction. 

Sent from my iPhone

> On Apr 12, 2018, at 8:27 AM, Aaron Mandelkorn  wrote:
> 
> Hi all,
> 
> I have a customer that requires a mounting option I have yet to encounter.  
> His site sits on top of of a massive hill of granite.  It is relatively flat. 
>  Are there any mounting options that could work here?  We are only talking 
> about (12) to (16) modules for an off grid array.  Is there anything that can 
> bolt to rock?  I typically use dpw or Mt solar pole mounts but can't imagine 
> how these options could work.  Any thoughts? 
> 
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com
> Off Grid Depot
> www.offgridnow.com
> 970-596-3744
> 
>
> ___
> List sponsored by Redwood Alliance
> 
> List Address: RE-wrenches@lists.re-wrenches.org
> 
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
> 
> List-Archive: 
> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
> 
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
> 
> Check out or update participant bios:
> www.members.re-wrenches.org
> 
___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[Dave Angelini Offgrid Solar]

Might as well put an 8" pole and an Array Technology AZ250 single axis
tracker on:) Living offgrid in the cat bird seat!


> Thanks everyone.  Sounds like most have had the opportunity to do this.  I
> can't believe that in the Colorado mountains this is the first time I am
> running into this situation in 12 years of business.  I'm excited to see
> how it works.  A concrete pad for the anchor plate will work out
> perfectly.  I appreciate all the advice and so promptly. This list is such
> a great resource!
>
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com
> Off Grid Depot
> www.offgridnow.com
> 970-596-3744
>
>
>
> On Thu, Apr 12, 2018, 11:16 AM James Jefferson Jarvis 
> wrote:
>
>> On 04/12/2018 08:53 AM, Aaron Mandelkorn wrote:
>> > Thanks all.  The flange plate was what I was thinking.  It may be to
>> > difficult to level a ballast mounting roof system.  Engineering may be
>> > a little difficult I assume?
>> No, engineering is easy. If it is unbroken it should be at least as
>> strong as concrete. The epoxy in anchors will work. If the rock is not
>> perfectly level you can do a thin concrete pad on top of the rock to
>> make a flat spot to bolt to. Drill the anchors through the concrete
>> leveling pad and into the rock.
>>
>> I love anchoring to rock. It's free and not going anywhere!
>>
>> -James Jarvis
>> APRS World, LLC
>> ___
>> List sponsored by Redwood Alliance
>>
>> List Address: RE-wrenches@lists.re-wrenches.org
>>
>> Change listserver email address & settings:
>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>
>> List-Archive:
>> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
>>
>> List rules & etiquette:
>> www.re-wrenches.org/etiquette.htm
>>
>> Check out or update participant bios:
>> www.members.re-wrenches.org
>>
>>
> ___
> List sponsored by Redwood Alliance
>
> List Address: RE-wrenches@lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive:
> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
>
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> www.members.re-wrenches.org
>
>


Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridso...@sti.net
text 209 813 0060

___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[William Miller]

Aaron:



I recommend you consider a ballasted system.  We have installed them on the
ground to good effect.  We grade a gravel surface to provide a level pad.
With soil underneath we bound the area with railroad ties or similar,
pegged into the soil to keep the gravel together.  On your rock surface, a
compacted road base should suffice.  Wind conditions should be considered
but these systems are engineered with that consideration in mind.



[image: Gradient Cap_mini]
Lic 773985
millersolar.com <http://www.millersolar.com/>
805-438-5600



*From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On
Behalf Of *Aaron Mandelkorn
*Sent:* Thursday, April 12, 2018 6:28 AM
*To:* RE-wrenches
*Subject:* [RE-wrenches] Mounting on rock



Hi all,



I have a customer that requires a mounting option I have yet to encounter.
His site sits on top of of a massive hill of granite.  It is relatively
flat.  Are there any mounting options that could work here?  We are only
talking about (12) to (16) modules for an off grid array.  Is there
anything that can bolt to rock?  I typically use dpw or Mt solar pole
mounts but can't imagine how these options could work.  Any thoughts?

Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com
Off Grid Depot
www.offgridnow.com
970-596-3744
___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[Ray]

We've welded a flanged plate to the bottom of the pole and then set 
epoxy anchor bolts into the rock.  Another option we've tried is drill a 
8" hole into the rock to get the base of the pole a foot down into the 
rock and then poured a reinforced block of concrete on top of the rock.  
smaller holes were drilled into the surrounding rock to attach the 
concrete to the rock as well.


Ballasted systems could be an option, as well as low profile racking 
with multiple anchor points.  Not fun but it can be done.


Ray Walters


On 4/12/18 7:27 AM, Aaron Mandelkorn wrote:

Hi all,

I have a customer that requires a mounting option I have yet to 
encounter.  His site sits on top of of a massive hill of granite.  It 
is relatively flat.  Are there any mounting options that could work 
here?  We are only talking about (12) to (16) modules for an off grid 
array.  Is there anything that can bolt to rock?  I typically use dpw 
or Mt solar pole mounts but can't imagine how these options could 
work.  Any thoughts?


Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com 
Off Grid Depot
www.offgridnow.com 
970-596-3744



___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org



___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[Aaron Mandelkorn]

Thanks everyone.  Sounds like most have had the opportunity to do this.  I
can't believe that in the Colorado mountains this is the first time I am
running into this situation in 12 years of business.  I'm excited to see
how it works.  A concrete pad for the anchor plate will work out
perfectly.  I appreciate all the advice and so promptly. This list is such
a great resource!

Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com
Off Grid Depot
www.offgridnow.com
970-596-3744



On Thu, Apr 12, 2018, 11:16 AM James Jefferson Jarvis 
wrote:

> On 04/12/2018 08:53 AM, Aaron Mandelkorn wrote:
> > Thanks all.  The flange plate was what I was thinking.  It may be to
> > difficult to level a ballast mounting roof system.  Engineering may be
> > a little difficult I assume?
> No, engineering is easy. If it is unbroken it should be at least as
> strong as concrete. The epoxy in anchors will work. If the rock is not
> perfectly level you can do a thin concrete pad on top of the rock to
> make a flat spot to bolt to. Drill the anchors through the concrete
> leveling pad and into the rock.
>
> I love anchoring to rock. It's free and not going anywhere!
>
> -James Jarvis
> APRS World, LLC
> ___
> List sponsored by Redwood Alliance
>
> List Address: RE-wrenches@lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive:
> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
>
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> www.members.re-wrenches.org
>
>
___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[James Jefferson Jarvis]

On 04/12/2018 08:53 AM, Aaron Mandelkorn wrote:
Thanks all.  The flange plate was what I was thinking.  It may be to 
difficult to level a ballast mounting roof system.  Engineering may be 
a little difficult I assume?
No, engineering is easy. If it is unbroken it should be at least as 
strong as concrete. The epoxy in anchors will work. If the rock is not 
perfectly level you can do a thin concrete pad on top of the rock to 
make a flat spot to bolt to. Drill the anchors through the concrete 
leveling pad and into the rock.


I love anchoring to rock. It's free and not going anywhere!

-James Jarvis
APRS World, LLC
___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[Bill Hennessy]

Hi Aaron--
In high strength concrete, we've used red head trubolt wedge anchors, with 1/2" 
plate (6x6), four anchors/plate, with the posts welded to the plate. This setup 
passed engineering muster. The anchors were 3/4" by 4-3/4".
The racking posts were a tripod of 4x6 stock welded to a pipe that would tilt 
the racking. A few years later, 90 mph winds sheared the pins that pinned the 
racking  to the post assembly. A few cracked modules, but the wedge anchors 
held just fine. 

We've used a Bosch spline drive drill over the years (11265EVS, about $600) and 
have been pleased with it. You can rent it or its big Makita cousin (HR5000) 
since your drilling down. The hammer drills are also sold in a sds version, but 
I've been old school. If you're not doing a lot of concrete rock work, I'd 
suggest buy a new bit and rent the drill. SDS bits cost a little less than 
splines and the 3/4" prices range from $25 to $50. 
 Bill Hennessy
Berks Solar, LLC
371 Centennial Rd
Mertztown, PA 19539

o 610 682 4300
c 484 560 4666
NABCEP certified installer
PA contractor #44411
www.berkssolar.com

  From: Aaron Mandelkorn 
 To: RE-wrenches  
 Sent: Thursday, April 12, 2018 9:28 AM
 Subject: [RE-wrenches] Mounting on rock
   
Hi all,
I have a customer that requires a mounting option I have yet to encounter.  His 
site sits on top of of a massive hill of granite.  It is relatively flat.  Are 
there any mounting options that could work here?  We are only talking about 
(12) to (16) modules for an off grid array.  Is there anything that can bolt to 
rock?  I typically use dpw or Mt solar pole mounts but can't imagine how these 
options could work.  Any thoughts? 

Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com
Off Grid Depot
www.offgridnow.com
970-596-3744

    ___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org



   ___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[RE Ellison]

On a roof ground mount you just need four holes the front one should be 
relatively level if you have to shim them with concrete or something or even 
steel plates that would work

The rears are adjustable legs so it’s no issue

Look at DPW roof ground mount you’ll see what I mean

Bob


> On Apr 12, 2018, at 9:53 AM, Aaron Mandelkorn  wrote:
> 
> Thanks all.  The flange plate was what I was thinking.  It may be to 
> difficult to level a ballast mounting roof system.  Engineering may be a 
> little difficult I assume?
> 
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com
> Off Grid Depot
> www.offgridnow.com
> 970-596-3744
> 
>
> 
>> On Thu, Apr 12, 2018, 7:46 AM Mac Lewis  wrote:
>> Hi Aaron,
>> 
>> Granite is a great substrate to mount to (once it's done). You could weld a 
>> large flange plate onto the bottom of your pole, and bolt it to the granite 
>> using anchor bolts. Rock climbers (including myself) drill into granite all 
>> of the time.  Bosch, among others, has a great drill and bit setup that 
>> works well. Glue in epoxies are a great way to keep moisture out of the hole 
>> for many years.
>> 
>> Ballast racks are available too but it seems like a shame not to attach to 
>> the granite in some way.
>> 
>> Good luck
>> 
>>> On Thu, Apr 12, 2018, 7:28 AM Aaron Mandelkorn  wrote:
>>> Hi all,
>>> 
>>> I have a customer that requires a mounting option I have yet to encounter.  
>>> His site sits on top of of a massive hill of granite.  It is relatively 
>>> flat.  Are there any mounting options that could work here?  We are only 
>>> talking about (12) to (16) modules for an off grid array.  Is there 
>>> anything that can bolt to rock?  I typically use dpw or Mt solar pole 
>>> mounts but can't imagine how these options could work.  Any thoughts? 
>>> 
>>> Aaron Mandelkorn
>>> President / Founder
>>> Renewable Energy Outfitters
>>> www.reosolar.com
>>> Off Grid Depot
>>> www.offgridnow.com
>>> 970-596-3744
>>> 
>>>
>>> ___
>>> List sponsored by Redwood Alliance
>>> 
>>> List Address: RE-wrenches@lists.re-wrenches.org
>>> 
>>> Change listserver email address & settings:
>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>> 
>>> List-Archive: 
>>> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
>>> 
>>> List rules & etiquette:
>>> www.re-wrenches.org/etiquette.htm
>>> 
>>> Check out or update participant bios:
>>> www.members.re-wrenches.org
>>> 
>> ___
>> List sponsored by Redwood Alliance
>> 
>> List Address: RE-wrenches@lists.re-wrenches.org
>> 
>> Change listserver email address & settings:
>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>> 
>> List-Archive: 
>> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
>> 
>> List rules & etiquette:
>> www.re-wrenches.org/etiquette.htm
>> 
>> Check out or update participant bios:
>> www.members.re-wrenches.org
>> 
> ___
> List sponsored by Redwood Alliance
> 
> List Address: RE-wrenches@lists.re-wrenches.org
> 
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
> 
> List-Archive: 
> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
> 
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
> 
> Check out or update participant bios:
> www.members.re-wrenches.org
> 
___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[Will White]

I'm pretty sure Unirac has a flange base that is designed to attached to
the bottom of a threaded pipe as part of their ULA rack that can be used to
mount directly to rock.

On Thu, Apr 12, 2018 at 9:53 AM, Aaron Mandelkorn 
wrote:

> Thanks all.  The flange plate was what I was thinking.  It may be to
> difficult to level a ballast mounting roof system.  Engineering may be a
> little difficult I assume?
>
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com
> Off Grid Depot
> www.offgridnow.com
> 970-596-3744
>
>
>
> On Thu, Apr 12, 2018, 7:46 AM Mac Lewis  wrote:
>
>> Hi Aaron,
>>
>> Granite is a great substrate to mount to (once it's done). You could weld
>> a large flange plate onto the bottom of your pole, and bolt it to the
>> granite using anchor bolts. Rock climbers (including myself) drill into
>> granite all of the time.  Bosch, among others, has a great drill and bit
>> setup that works well. Glue in epoxies are a great way to keep moisture out
>> of the hole for many years.
>>
>> Ballast racks are available too but it seems like a shame not to attach
>> to the granite in some way.
>>
>> Good luck
>>
>> On Thu, Apr 12, 2018, 7:28 AM Aaron Mandelkorn 
>> wrote:
>>
>>> Hi all,
>>>
>>> I have a customer that requires a mounting option I have yet to
>>> encounter.  His site sits on top of of a massive hill of granite.  It is
>>> relatively flat.  Are there any mounting options that could work here?  We
>>> are only talking about (12) to (16) modules for an off grid array.  Is
>>> there anything that can bolt to rock?  I typically use dpw or Mt solar pole
>>> mounts but can't imagine how these options could work.  Any thoughts?
>>>
>>> Aaron Mandelkorn
>>> President / Founder
>>> Renewable Energy Outfitters
>>> www.reosolar.com
>>> Off Grid Depot
>>> www.offgridnow.com
>>> 970-596-3744
>>>
>>>
>>> ___
>>> List sponsored by Redwood Alliance
>>>
>>> List Address: RE-wrenches@lists.re-wrenches.org
>>>
>>> Change listserver email address & settings:
>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>>
>>> List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.
>>> org/maillist.html
>>>
>>> List rules & etiquette:
>>> www.re-wrenches.org/etiquette.htm
>>>
>>> Check out or update participant bios:
>>> www.members.re-wrenches.org
>>>
>>> ___
>> List sponsored by Redwood Alliance
>>
>> List Address: RE-wrenches@lists.re-wrenches.org
>>
>> Change listserver email address & settings:
>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>
>> List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.
>> org/maillist.html
>>
>> List rules & etiquette:
>> www.re-wrenches.org/etiquette.htm
>>
>> Check out or update participant bios:
>> www.members.re-wrenches.org
>>
>>
> ___
> List sponsored by Redwood Alliance
>
> List Address: RE-wrenches@lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.
> org/maillist.html
>
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> www.members.re-wrenches.org
>
>
>


-- 
*Will White*
Curriculum Developer

[image: Inline image 3]

e: w...@solarenergy.org
w: www.solarenergy.org
p: 802-272-3092

PV Installation Professional
# 093006-34
___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[Aaron Mandelkorn]

Thanks all.  The flange plate was what I was thinking.  It may be to
difficult to level a ballast mounting roof system.  Engineering may be a
little difficult I assume?

Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com
Off Grid Depot
www.offgridnow.com
970-596-3744



On Thu, Apr 12, 2018, 7:46 AM Mac Lewis  wrote:

> Hi Aaron,
>
> Granite is a great substrate to mount to (once it's done). You could weld
> a large flange plate onto the bottom of your pole, and bolt it to the
> granite using anchor bolts. Rock climbers (including myself) drill into
> granite all of the time.  Bosch, among others, has a great drill and bit
> setup that works well. Glue in epoxies are a great way to keep moisture out
> of the hole for many years.
>
> Ballast racks are available too but it seems like a shame not to attach to
> the granite in some way.
>
> Good luck
>
> On Thu, Apr 12, 2018, 7:28 AM Aaron Mandelkorn  wrote:
>
>> Hi all,
>>
>> I have a customer that requires a mounting option I have yet to
>> encounter.  His site sits on top of of a massive hill of granite.  It is
>> relatively flat.  Are there any mounting options that could work here?  We
>> are only talking about (12) to (16) modules for an off grid array.  Is
>> there anything that can bolt to rock?  I typically use dpw or Mt solar pole
>> mounts but can't imagine how these options could work.  Any thoughts?
>>
>> Aaron Mandelkorn
>> President / Founder
>> Renewable Energy Outfitters
>> www.reosolar.com
>> Off Grid Depot
>> www.offgridnow.com
>> 970-596-3744
>>
>>
>> ___
>> List sponsored by Redwood Alliance
>>
>> List Address: RE-wrenches@lists.re-wrenches.org
>>
>> Change listserver email address & settings:
>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>
>> List-Archive:
>> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
>>
>> List rules & etiquette:
>> www.re-wrenches.org/etiquette.htm
>>
>> Check out or update participant bios:
>> www.members.re-wrenches.org
>>
>> ___
> List sponsored by Redwood Alliance
>
> List Address: RE-wrenches@lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive:
> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
>
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> www.members.re-wrenches.org
>
>
___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[Mac Lewis]

Hi Aaron,

Granite is a great substrate to mount to (once it's done). You could weld a
large flange plate onto the bottom of your pole, and bolt it to the granite
using anchor bolts. Rock climbers (including myself) drill into granite all
of the time.  Bosch, among others, has a great drill and bit setup that
works well. Glue in epoxies are a great way to keep moisture out of the
hole for many years.

Ballast racks are available too but it seems like a shame not to attach to
the granite in some way.

Good luck

On Thu, Apr 12, 2018, 7:28 AM Aaron Mandelkorn  wrote:

> Hi all,
>
> I have a customer that requires a mounting option I have yet to
> encounter.  His site sits on top of of a massive hill of granite.  It is
> relatively flat.  Are there any mounting options that could work here?  We
> are only talking about (12) to (16) modules for an off grid array.  Is
> there anything that can bolt to rock?  I typically use dpw or Mt solar pole
> mounts but can't imagine how these options could work.  Any thoughts?
>
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com
> Off Grid Depot
> www.offgridnow.com
> 970-596-3744
>
>
> ___
> List sponsored by Redwood Alliance
>
> List Address: RE-wrenches@lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive:
> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
>
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> www.members.re-wrenches.org
>
>
___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[Peter Giroux]

Aaron

  There are a few ballast roof mount companies that promote their racking for 
ballast ground mount options. You may want to explore some of those.

Peter Giroux
ASAE
  - Original Message - 
  From: Aaron Mandelkorn 
  To: RE-wrenches 
  Sent: Thursday, April 12, 2018 9:27 AM
  Subject: [RE-wrenches] Mounting on rock


  Hi all,


  I have a customer that requires a mounting option I have yet to encounter.  
His site sits on top of of a massive hill of granite.  It is relatively flat.  
Are there any mounting options that could work here?  We are only talking about 
(12) to (16) modules for an off grid array.  Is there anything that can bolt to 
rock?  I typically use dpw or Mt solar pole mounts but can't imagine how these 
options could work.  Any thoughts? 


  Aaron Mandelkorn
  President / Founder
  Renewable Energy Outfitters
  www.reosolar.com
  Off Grid Depot
  www.offgridnow.com
  970-596-3744

  


--


  ___
  List sponsored by Redwood Alliance

  List Address: RE-wrenches@lists.re-wrenches.org

  Change listserver email address & settings:
  http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

  List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

  List rules & etiquette:
  www.re-wrenches.org/etiquette.htm

  Check out or update participant bios:
  www.members.re-wrenches.org

___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[Chad Waits]

Hey Aaron,

We¹ve done a project similar to this just a little smaller for an off grid
client here in AZ. I could share info with you about how we did it off list
if you¹d like. Might be a little long winded for the group.

Thanks!

Chad Waits
President/Owner ­ Net Zero Solar
101 W. 5th St., Tucson, AZ  85705
Office: 520-207-4053
Cell: 520-270-4873
NABCEP Certified PV Installation Professional



From:  RE-wrenches  on behalf of
Aaron Mandelkorn 
Reply-To:  RE-wrenches 
Date:  Thursday, April 12, 2018 at 6:27 AM
To:  RE-wrenches 
Subject:  [RE-wrenches] Mounting on rock

Hi all,

I have a customer that requires a mounting option I have yet to encounter.
His site sits on top of of a massive hill of granite.  It is relatively
flat.  Are there any mounting options that could work here?  We are only
talking about (12) to (16) modules for an off grid array.  Is there anything
that can bolt to rock?  I typically use dpw or Mt solar pole mounts but
can't imagine how these options could work.  Any thoughts?

Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com <http://www.reosolar.com>
Off Grid Depot
www.offgridnow.com <http://www.offgridnow.com>
970-596-3744


___ List sponsored by Redwood
Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver
email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or
update participant bios: www.members.re-wrenches.org

___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Re: [RE-wrenches] Mounting on rock

[RE Ellison]

If you could get a well driller with a sense of humor you could put a hole in 
that you could mount a pole the other option is use a DPW ground mount and 
drill and anchor it in the four spots where is the feet sit

Bob ellison

But you will have to run ground wire to someplace to get a good ground

> On Apr 12, 2018, at 9:27 AM, Aaron Mandelkorn  wrote:
> 
> Hi all,
> 
> I have a customer that requires a mounting option I have yet to encounter.  
> His site sits on top of of a massive hill of granite.  It is relatively flat. 
>  Are there any mounting options that could work here?  We are only talking 
> about (12) to (16) modules for an off grid array.  Is there anything that can 
> bolt to rock?  I typically use dpw or Mt solar pole mounts but can't imagine 
> how these options could work.  Any thoughts? 
> 
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com
> Off Grid Depot
> www.offgridnow.com
> 970-596-3744
> 
>
> ___
> List sponsored by Redwood Alliance
> 
> List Address: RE-wrenches@lists.re-wrenches.org
> 
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
> 
> List-Archive: 
> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
> 
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
> 
> Check out or update participant bios:
> www.members.re-wrenches.org
> 
___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

[RE-wrenches] Mounting on rock

[Aaron Mandelkorn]

Hi all,

I have a customer that requires a mounting option I have yet to encounter.
His site sits on top of of a massive hill of granite.  It is relatively
flat.  Are there any mounting options that could work here?  We are only
talking about (12) to (16) modules for an off grid array.  Is there
anything that can bolt to rock?  I typically use dpw or Mt solar pole
mounts but can't imagine how these options could work.  Any thoughts?

Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com
Off Grid Depot
www.offgridnow.com
970-596-3744
___
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org