Re: [RE-wrenches] ballasted ground mounts residential scale

2022-01-03 Thread Jeff Clearwater 

That's really valuable real world experience Benn - Thank you!

I did intuitively notice in watching the assembly videos that that after 
the initial tensioning of the anchor cable that there was only minimal 
attention (and hardware) devoted to keeping that cable under tension. 
Could be as simple as a ratcheting device to periodically tighten up 
after install perhaps?  Doesn't seem like that would be too hard to 
retrofit.


I do see you are in the plains up there in Canada - so wondering perhaps 
the winds are much higher - still it shouldn't move a cm after install!


Thanks again - very valuable feedback.  Sorry you had hassles!

Best,

Jeff



Benn Kilburn 
January 3, 2022 at 7:52 AM
Sorry, I sent that last email too soon by accident….

Yes, I’ve installed a few of these Nuance Osprey racks…. With much 
less than satisfactory experiences.


The rack tables themselves go together fairly well, however the cable 
anchor system, while seemingly slick, left much to be desired in my 
experiences.
Some anchors would not come close to the required load test pull-out 
values, requiring extra anchors to be needed, which is fine, until all 
the anchor holes have been used. The anchors don’t “securely” hold the 
rack down, meaning it leaves a bit of room for movement, so under high 
wind, and over time it can wiggle and loosen the anchors leaving more 
and more room for movement each time. That said, they do recommend 
rechecking the anchors after some time, but this can be an issue for 
some sites.
I have gone back to check a site and a rack (with other racks on 
either side) had shifted forward about 25cm, seemingly due to high 
wind. It drove the front anchor base plates into the ground and caused 
some damage to the rack structure which had a design flaw that I 
believe was corrected.


They recommend re checking the pull-out load testing of the anchors 
after a year or so but I have yet to be given a solution for 
rechecking the front anchors without removing modules, which are in 
the way of doing the pull out test.


It’s been over a year and a half since the last one I worked on so 
it’s not so fresh in my mind but I do know there were several other 
issues with the rack/rail assembly and mounting modules, issues with 
the mod mud/end clamps.


I’m not completely against giving it another try, but not without 
reviewing the notes and photos from the last ones and confirming the 
issues have been addressed.


Regards,
Benn


--
Benn Kilburn
SkyFire Energy
780-906-7807
Benn Kilburn 
January 3, 2022 at 7:22 AM
I’ve installed a few of these Nuance Osprey racks..~85kw, ~50kw



--
Benn Kilburn
SkyFire Energy
780-906-7807
Jeff Clearwater 
December 30, 2021 at 1:30 PM
Wow cool product Nick!  Anyone have actual experience?

I've been thinking that the concrete beam systems (above grade 
pre-engineered rectangular blocks like solarmounts.com) really could 
be used for any ground mount rack system (Unirac, IronRidge, 
SnapNRack, SolarMounts, ReadyRack, etc.)  in other words many ground 
mount systems could be bolted to an above grade concrete beam - would 
just need a sign off on uplift by an engineer at the worst or just 
apply existing engineering models.  Many manufacturers already off 
that option and probably provide the engineering.


This might expand small system options for those manufacturers only 
offering ballast systems to large system buyers.


Which makes me think that If I tried a Nuance system and the soil 
didn't work out for the cable pull you could then just bolt them down 
to a concrete beam system as a plan b.


Thoughts?  Experience anyone?

best,

jc






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Jeff Clearwater 
December 30, 2021 at 1:01 PM
Wow cool product Nick!  Anyone have actual experience?

I've been thinking that the concrete beam systems (above grade 
pre-engineered rectangular blocks like solarmounts.com) really could 
be used for any ground mount rack system (Unirac, IronRidge, 
SnapNRack, SolarMounts, ReadyRack, etc.)  in other words many ground 
mount systems could be bolted to an above grade concrete beam - would 
just need a sign off on uplift by an engineer at the worst or just 
apply existing engineering models.  Many manufacturers already

Re: [RE-wrenches] ballasted ground mounts residential scale

2022-01-03 Thread Benn Kilburn 
Sorry, I sent that last email too soon by accident….

Yes, I’ve installed a few of these Nuance Osprey racks…. With much less
than satisfactory experiences.

The rack tables themselves go together fairly well, however the cable
anchor system, while seemingly slick, left much to be desired in my
experiences.
Some anchors would not come close to the required load test pull-out
values, requiring extra anchors to be needed, which is fine, until all the
anchor holes have been used. The anchors don’t “securely” hold the rack
down, meaning it leaves a bit of room for movement, so under high wind, and
over time it can wiggle and loosen the anchors leaving more and more room
for movement each time. That said, they do recommend rechecking the anchors
after some time, but this can be an issue for some sites.
I have gone back to check a site and a rack (with other racks on either
side) had shifted forward about 25cm, seemingly due to high wind. It drove
the front anchor base plates into the ground and caused some damage to the
rack structure which had a design flaw that I believe was corrected.

They recommend re checking the pull-out load testing of the anchors after a
year or so but I have yet to be given a solution for rechecking the front
anchors without removing modules, which are in the way of doing the pull
out test.

It’s been over a year and a half since the last one I worked on so it’s not
so fresh in my mind but I do know there were several other issues with the
rack/rail assembly and mounting modules, issues with the mod mud/end
clamps.

I’m not completely against giving it another try, but not without reviewing
the notes and photos from the last ones and confirming the issues have been
addressed.

Regards,
Benn


On Mon, Jan 3, 2022 at 8:22 AM Benn Kilburn  wrote:

> I’ve installed a few of these Nuance Osprey racks..~85kw, ~50kw
>
>
>
> On Thu, Dec 30, 2021 at 2:31 PM Jeff Clearwater <
> je...@villagepowerdesign.com> wrote:
>
>> Wow cool product Nick!  Anyone have actual experience?
>>
>> I've been thinking that the concrete beam systems (above grade
>> pre-engineered rectangular blocks like solarmounts.com) really could be
>> used for any ground mount rack system (Unirac, IronRidge, SnapNRack,
>> SolarMounts, ReadyRack, etc.)  in other words many ground mount systems
>> could be bolted to an above grade concrete beam - would just need a sign
>> off on uplift by an engineer at the worst or just apply existing
>> engineering models.  Many manufacturers already off that option and
>> probably provide the engineering.
>>
>> This might expand small system options for those manufacturers only
>> offering ballast systems to large system buyers.
>>
>> Which makes me think that If I tried a Nuance system and the soil didn't
>> work out for the cable pull you could then just bolt them down to a
>> concrete beam system as a plan b.
>>
>> Thoughts?  Experience anyone?
>>
>> best,
>>
>> jc
>>
>>
>>
>> Nick A Lucchese 
>> December 30, 2021 at 11:38 AM
>>
>> Greetings Mac,
>>
>> I recently have been investigating the use of Nuance’s Osprey
>>  product solution. Doesn’t necessarily fall
>> under the ballasted category and since you’re trying to avoid the heat pump
>> lines it may not fit your strategy either but I really like the option of
>> getting away from pouring concrete. The anchors are set 40-65” deep. For
>> smaller projects it seems like the cost may be somewhat prohibitive due to
>> shipping logistics but appears like they price out affordably once you
>> purchase a bit of specialized equipment and get around the freight costs.
>>
>> That ReadyRack geo-ballast looks quite cool too Jeff, thanks for the link
>> on that.
>>
>> Best of luck, Nick
>>
>>
>>
>>
>>
>> ___
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>> Mac Lewis 
>> December 28, 2021 at 3:31 PM
>> Hello Wrenches,
>>
>> Can anyone recommend a ballasted ground mount solution that is offered on
>> a residential scale?  Below 10kW typically.
>>
>> Thanks in advance!
>>
>> --
>>
>>
>>
>> Mac Lewis
>>
>> *"Yo solo sé que no sé nada." -Sócrates*
>>
>>
>> ___
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Re: [RE-wrenches] ballasted ground mounts residential scale

2022-01-03 Thread Benn Kilburn 
I’ve installed a few of these Nuance Osprey racks..~85kw, ~50kw



On Thu, Dec 30, 2021 at 2:31 PM Jeff Clearwater <
je...@villagepowerdesign.com> wrote:

> Wow cool product Nick!  Anyone have actual experience?
>
> I've been thinking that the concrete beam systems (above grade
> pre-engineered rectangular blocks like solarmounts.com) really could be
> used for any ground mount rack system (Unirac, IronRidge, SnapNRack,
> SolarMounts, ReadyRack, etc.)  in other words many ground mount systems
> could be bolted to an above grade concrete beam - would just need a sign
> off on uplift by an engineer at the worst or just apply existing
> engineering models.  Many manufacturers already off that option and
> probably provide the engineering.
>
> This might expand small system options for those manufacturers only
> offering ballast systems to large system buyers.
>
> Which makes me think that If I tried a Nuance system and the soil didn't
> work out for the cable pull you could then just bolt them down to a
> concrete beam system as a plan b.
>
> Thoughts?  Experience anyone?
>
> best,
>
> jc
>
>
>
> Nick A Lucchese 
> December 30, 2021 at 11:38 AM
>
> Greetings Mac,
>
> I recently have been investigating the use of Nuance’s Osprey
>  product solution. Doesn’t necessarily fall
> under the ballasted category and since you’re trying to avoid the heat pump
> lines it may not fit your strategy either but I really like the option of
> getting away from pouring concrete. The anchors are set 40-65” deep. For
> smaller projects it seems like the cost may be somewhat prohibitive due to
> shipping logistics but appears like they price out affordably once you
> purchase a bit of specialized equipment and get around the freight costs.
>
> That ReadyRack geo-ballast looks quite cool too Jeff, thanks for the link
> on that.
>
> Best of luck, Nick
>
>
>
>
>
> ___
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> Pay optional member dues here: http://re-wrenches.org
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>
> Mac Lewis 
> December 28, 2021 at 3:31 PM
> Hello Wrenches,
>
> Can anyone recommend a ballasted ground mount solution that is offered on
> a residential scale?  Below 10kW typically.
>
> Thanks in advance!
>
> --
>
>
>
> Mac Lewis
>
> *"Yo solo sé que no sé nada." -Sócrates*
>
>
> ___
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
> List Address: RE-wrenches@lists.re-wrenches.org
>
> Change listserver email address & settings:
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>
> There are two list archives for searching. When one doesn't work, try the
> other:
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> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
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>
> ___
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>
> Pay optional member dues here: http://re-wrenches.org
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> List Address: RE-wrenches@lists.re-wrenches.org
>
> Change listserver email address & settings:
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> There are two list archives for searching. When one doesn't work, try the
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> --
Benn Kilburn
SkyFire Energy
780-906-7807
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Re: [RE-wrenches] ballasted ground mounts residential scale

2021-12-31 Thread Jeff Clearwater 


I mispoke:

"This might expand small system options for those manufacturers only 
offering ballast systems to large system buyers."


What I meant to say is utilizing concrete grade beams as foundations for 
existing residential and small commerical ground mount solutions could 
expand the options that we installers have for ground mount solutions 
since most offerings for pre-engineered solutions are intended for the 
utility scale market.


jc

Jeff Clearwater 
December 30, 2021 at 1:30 PM
Wow cool product Nick!  Anyone have actual experience?

I've been thinking that the concrete beam systems (above grade 
pre-engineered rectangular blocks like solarmounts.com) really could 
be used for any ground mount rack system (Unirac, IronRidge, 
SnapNRack, SolarMounts, ReadyRack, etc.)  in other words many ground 
mount systems could be bolted to an above grade concrete beam - would 
just need a sign off on uplift by an engineer at the worst or just 
apply existing engineering models.  Many manufacturers already off 
that option and probably provide the engineering.


This might expand small system options for those manufacturers only 
offering ballast systems to large system buyers.


Which makes me think that If I tried a Nuance system and the soil 
didn't work out for the cable pull you could then just bolt them down 
to a concrete beam system as a plan b.


Thoughts?  Experience anyone?

best,

jc






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Jeff Clearwater 
December 30, 2021 at 1:01 PM
Wow cool product Nick!  Anyone have actual experience?

I've been thinking that the concrete beam systems (above grade 
pre-engineered rectangular blocks like solarmounts.com) really could 
be used for any ground mount rack system (Unirac, IronRidge, 
SnapNRack, SolarMounts, ReadyRack, etc.)  in other words many ground 
mount systems could be bolted to an above grade concrete beam - would 
just need a sign off on uplift by an engineer at the worst or just 
apply existing engineering models.  Many manufacturers already off 
that option and probably provide the engineering.


This might expand small system options for those manufacturers only 
offering ballast systems to large system buyers.


Which makes me think that If I tried a Nuance system and the soil 
didn't work out for the cable pull you could then just bolt them down 
to a concrete beam system as a plan b.


Thoughts?  Experience anyone?

best,

jc




Nick A Lucchese 
December 30, 2021 at 11:38 AM
Greetings Mac,

I recently have been investigating the use of Nuance’s Osprey 
 product solution. Doesn’t necessarily fall 
under the ballasted category and since you’re trying to avoid the heat 
pump lines it may not fit your strategy either but I really like the 
option of getting away from pouring concrete. The anchors are set 
40-65” deep. For smaller projects it seems like the cost may be 
somewhat prohibitive due to shipping logistics but appears like they 
price out affordably once you purchase a bit of specialized equipment 
and get around the freight costs.


That ReadyRack geo-ballast looks quite cool too Jeff, thanks for the 
link on that.


Best of luck, Nick





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Mac Lewis 
December 28, 2021 at 3:31 PM
Hello Wrenches,

Can anyone recommend a ballasted ground mount solution that is offered 
on a residential scale? Below 10kW typically.


Thanks in advance!

--



Mac Lewis

*

"Yo solo sé que no sé nada." -Sócrates

*


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Re: [RE-wrenches] ballasted ground mounts residential scale

2021-12-30 Thread Jeff Clearwater 

Wow cool product Nick!  Anyone have actual experience?

I've been thinking that the concrete beam systems (above grade 
pre-engineered rectangular blocks like solarmounts.com) really could be 
used for any ground mount rack system (Unirac, IronRidge, SnapNRack, 
SolarMounts, ReadyRack, etc.)  in other words many ground mount systems 
could be bolted to an above grade concrete beam - would just need a sign 
off on uplift by an engineer at the worst or just apply existing 
engineering models.  Many manufacturers already off that option and 
probably provide the engineering.


This might expand small system options for those manufacturers only 
offering ballast systems to large system buyers.


Which makes me think that If I tried a Nuance system and the soil didn't 
work out for the cable pull you could then just bolt them down to a 
concrete beam system as a plan b.


Thoughts?  Experience anyone?

best,

jc




Nick A Lucchese 
December 30, 2021 at 11:38 AM
Greetings Mac,

I recently have been investigating the use of Nuance’s Osprey 
 product solution. Doesn’t necessarily fall 
under the ballasted category and since you’re trying to avoid the heat 
pump lines it may not fit your strategy either but I really like the 
option of getting away from pouring concrete. The anchors are set 
40-65” deep. For smaller projects it seems like the cost may be 
somewhat prohibitive due to shipping logistics but appears like they 
price out affordably once you purchase a bit of specialized equipment 
and get around the freight costs.


That ReadyRack geo-ballast looks quite cool too Jeff, thanks for the 
link on that.


Best of luck, Nick





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Mac Lewis 
December 28, 2021 at 3:31 PM
Hello Wrenches,

Can anyone recommend a ballasted ground mount solution that is offered 
on a residential scale? Below 10kW typically.


Thanks in advance!

--



Mac Lewis

*

"Yo solo sé que no sé nada." -Sócrates

*


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Re: [RE-wrenches] ballasted ground mounts residential scale

2021-12-29 Thread Jeff Clearwater 
Two that I've looked at but never used - I like the use of rock on the 
second one.  We quoted it for a job at one point and the price was quite 
reasonable.


https://solarmounts.com/ballasted-ground-mount/

https://www.readyracksolar.com/

Hope that helps!

Jeff


Mac Lewis 
December 28, 2021 at 3:31 PM
Hello Wrenches,

Can anyone recommend a ballasted ground mount solution that is offered 
on a residential scale? Below 10kW typically.


Thanks in advance!

--



Mac Lewis

*

"Yo solo sé que no sé nada." -Sócrates

*


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Re: [RE-wrenches] ballasted ground mounts residential scale

2021-12-29 Thread Jerry Shafer 
Sorry a little far, l know of a ground mount sun link system that will be
coming down very soon.
Jerfy

On Wed, Dec 29, 2021, 2:25 PM Mac Lewis  wrote:

> Hi Jerry,
>
> We are located in Western Colorado, Eastern Utah.
>
> Thanks
>
> On Wed, Dec 29, 2021, 3:22 PM Jerry Shafer 
> wrote:
>
>> Where are you located
>> Jerry
>>
>> On Tue, Dec 28, 2021, 3:31 PM Mac Lewis  wrote:
>>
>>> Hello Wrenches,
>>>
>>> Can anyone recommend a ballasted ground mount solution that is offered
>>> on a residential scale?  Below 10kW typically.
>>>
>>> Thanks in advance!
>>>
>>> --
>>>
>>>
>>>
>>> Mac Lewis
>>>
>>> *"Yo solo sé que no sé nada." -Sócrates*
>>> ___
>>> List sponsored by Redwood Alliance
>>>
>>> Pay optional member dues here: http://re-wrenches.org
>>>
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>>>
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>>>
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Re: [RE-wrenches] ballasted ground mounts residential scale

2021-12-29 Thread Mac Lewis 
Hi Jerry,

We are located in Western Colorado, Eastern Utah.

Thanks

On Wed, Dec 29, 2021, 3:22 PM Jerry Shafer  wrote:

> Where are you located
> Jerry
>
> On Tue, Dec 28, 2021, 3:31 PM Mac Lewis  wrote:
>
>> Hello Wrenches,
>>
>> Can anyone recommend a ballasted ground mount solution that is offered on
>> a residential scale?  Below 10kW typically.
>>
>> Thanks in advance!
>>
>> --
>>
>>
>>
>> Mac Lewis
>>
>> *"Yo solo sé que no sé nada." -Sócrates*
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Re: [RE-wrenches] ballasted ground mounts residential scale

2021-12-29 Thread Jerry Shafer 
Where are you located
Jerry

On Tue, Dec 28, 2021, 3:31 PM Mac Lewis  wrote:

> Hello Wrenches,
>
> Can anyone recommend a ballasted ground mount solution that is offered on
> a residential scale?  Below 10kW typically.
>
> Thanks in advance!
>
> --
>
>
>
> Mac Lewis
>
> *"Yo solo sé que no sé nada." -Sócrates*
> ___
> List sponsored by Redwood Alliance
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Re: [RE-wrenches] ballasted ground mounts residential scale

2021-12-29 Thread Jay 
I prefer iron ridge as they have 2” and 3” pipe options which require a lot 
less bracing than the 1.5” pipe. And they have a 5 panel rail. 

Jay


> On Dec 29, 2021, at 10:52 AM, Dana Orzel  wrote:
> 
> 
> Or Pour a solid slab.
>  
>  
>  
> Dana Orzel  Great Solar Works, Inc.
> C - 208.721.7003   d...@solarwork.com
> Idaho Contractor - # 028765 Idaho PV # 028374
> NABCEP # 051112-136   www.greatsolarworks.com
> "Responsible Technologies for Responsible People since 1988" 
> P Please consider the environment before printing this email.
>  
>  
> From: RE-wrenches  On Behalf Of jay
> Sent: Wednesday, December 29, 2021 10:26 AM
> To: RE-wrenches 
> Subject: Re: [RE-wrenches] ballasted ground mounts residential scale
>  
> Hi Mac,
>  
> You can check out the unirac GFT which has a engineered ballast in their 
> approved mounting designs.  
>  
> jay
>  
> peltz power
> 
> 
> On Dec 29, 2021, at 9:05 AM, Mac Lewis  wrote:
>  
> Thanks Dana,
>  
> Normally I do a piered system for these, but I've got a project with a ground 
> source heat pump loop at unknown depth under the array field.  I'm trying to 
> avoid a puncture.
>  
> Thanks!
>  
> On Wed, Dec 29, 2021 at 8:58 AM Dana Orzel  wrote:
> I have used Snapn’Rack’s system with grade beams. It uses a sched 40 - 1½” 
> iron/galv pipe to achieve 90 MPH 3 sec micro burst rating for uplift. Please 
> verify if this is still available from SnR.  I am pretty sure that we needed 
> 18# of concrete/sqft of PV module. I would have your structural engineer 
> verify this or whatever your local code calls for.
> It’s a good system as long as you do not have frost heaving of the ground. I 
> am not sure that I would do this in snow country unless your engineer could 
> guaranty that there is a way to eliminate the frost heave.
>  
> And if you are going to have to do that much ground prep why not use a pier 
> or footing system?
>  
>  
>  
>  
> Dana Orzel  Great Solar Works, Inc.
> C - 208.721.7003   d...@solarwork.com
> Idaho Contractor - # 028765 Idaho PV # 028374
> NABCEP # 051112-136   www.greatsolarworks.com
> "Responsible Technologies for Responsible People since 1988" 
> P Please consider the environment before printing this email.
>  
>  
> From: RE-wrenches  On Behalf Of 
> Mac Lewis
> Sent: Tuesday, December 28, 2021 4:31 PM
> To: RE-wrenches 
> Subject: [RE-wrenches] ballasted ground mounts residential scale
>  
> Hello Wrenches,
>  
> Can anyone recommend a ballasted ground mount solution that is offered on a 
> residential scale?  Below 10kW typically.
>  
> Thanks in advance!
>  
> --
>  
>  
>  
> Mac Lewis
> 
> "Yo solo sé que no sé nada." -Sócrates
> ___
> List sponsored by Redwood Alliance
> 
> Pay optional member dues here: http://re-wrenches.org
> 
> List Address: RE-wrenches@lists.re-wrenches.org
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> 
>  
> --
>  
>  
>  
> Mac Lewis
> 
> 
> "Yo solo sé que no sé nada." -Sócrates
> ___
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>

[RE-wrenches] ballasted ground mounts residential scale

2021-12-29 Thread Dana Orzel 
Or Pour a solid slab.

 

 

 

Dana Orzel  Great Solar Works, Inc. 

C - 208.721.7003   d...@solarwork.com

Idaho Contractor - # 028765 Idaho PV # 028374

NABCEP # 051112-136<http://www.greatsolarworks.com> 
www.greatsolarworks.com

"Responsible Technologies for Responsible People since 1988"  

P Please consider the environment before printing this email.

 

 

From: RE-wrenches  On Behalf Of jay
Sent: Wednesday, December 29, 2021 10:26 AM
To: RE-wrenches 
Subject: Re: [RE-wrenches] ballasted ground mounts residential scale

 

Hi Mac,

 

You can check out the unirac GFT which has a engineered ballast in their 
approved mounting designs.  

 

jay

 

peltz power





On Dec 29, 2021, at 9:05 AM, Mac Lewis mailto:maclew...@gmail.com> > wrote:

 

Thanks Dana,

 

Normally I do a piered system for these, but I've got a project with a ground 
source heat pump loop at unknown depth under the array field.  I'm trying to 
avoid a puncture.

 

Thanks!

 

On Wed, Dec 29, 2021 at 8:58 AM Dana Orzel mailto:d...@solarwork.com> > wrote:

I have used Snapn’Rack’s system with grade beams. It uses a sched 40 - 1½” 
iron/galv pipe to achieve 90 MPH 3 sec micro burst rating for uplift. Please 
verify if this is still available from SnR.  I am pretty sure that we needed 
18# of concrete/sqft of PV module. I would have your structural engineer verify 
this or whatever your local code calls for.

It’s a good system as long as you do not have frost heaving of the ground. I am 
not sure that I would do this in snow country unless your engineer could 
guaranty that there is a way to eliminate the frost heave. 

 

And if you are going to have to do that much ground prep why not use a pier or 
footing system?

 

 

 

 

Dana Orzel  Great Solar Works, Inc. 

C - 208.721.7003   d...@solarwork.com 
<mailto:d...@solarwork.com> 

Idaho Contractor - # 028765 Idaho PV # 028374

NABCEP # 051112-136   www.greatsolarworks.com 
<http://www.greatsolarworks.com/> 

"Responsible Technologies for Responsible People since 1988"  

P Please consider the environment before printing this email.

 

 

From: RE-wrenches mailto:re-wrenches-boun...@lists.re-wrenches.org> > On Behalf Of Mac Lewis
Sent: Tuesday, December 28, 2021 4:31 PM
To: RE-wrenches mailto:re-wrenches@lists.re-wrenches.org> >
Subject: [RE-wrenches] ballasted ground mounts residential scale

 

Hello Wrenches,

 

Can anyone recommend a ballasted ground mount solution that is offered on a 
residential scale?  Below 10kW typically.

 

Thanks in advance!


 

-- 

 

 

 

Mac Lewis

"Yo solo sé que no sé nada." -Sócrates

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-- 

 

 

 

Mac Lewis




"Yo solo sé que no sé nada." -Sócrates

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Re: [RE-wrenches] ballasted ground mounts residential scale

2021-12-29 Thread jay 
Hi Mac,

You can check out the unirac GFT which has a engineered ballast in their 
approved mounting designs.  

jay

peltz power

> On Dec 29, 2021, at 9:05 AM, Mac Lewis  wrote:
> 
> Thanks Dana,
> 
> Normally I do a piered system for these, but I've got a project with a ground 
> source heat pump loop at unknown depth under the array field.  I'm trying to 
> avoid a puncture.
> 
> Thanks!
> 
> On Wed, Dec 29, 2021 at 8:58 AM Dana Orzel  <mailto:d...@solarwork.com>> wrote:
> I have used Snapn’Rack’s system with grade beams. It uses a sched 40 - 1½” 
> iron/galv pipe to achieve 90 MPH 3 sec micro burst rating for uplift. Please 
> verify if this is still available from SnR.  I am pretty sure that we needed 
> 18# of concrete/sqft of PV module. I would have your structural engineer 
> verify this or whatever your local code calls for.
> 
> It’s a good system as long as you do not have frost heaving of the ground. I 
> am not sure that I would do this in snow country unless your engineer could 
> guaranty that there is a way to eliminate the frost heave.
> 
>  
> 
> And if you are going to have to do that much ground prep why not use a pier 
> or footing system?
> 
>  
> 
>  
> 
>  
> 
>  
> 
> Dana Orzel  Great Solar Works, Inc.
> 
> C - 208.721.7003   d...@solarwork.com 
> <mailto:d...@solarwork.com>
> Idaho Contractor - # 028765 Idaho PV # 028374
> 
> NABCEP # 051112-136   www.greatsolarworks.com 
> <http://www.greatsolarworks.com/>
> "Responsible Technologies for Responsible People since 1988" 
> 
> P Please consider the environment before printing this email.
> 
>  
> 
>  
> 
> From: RE-wrenches  <mailto:re-wrenches-boun...@lists.re-wrenches.org>> On Behalf Of Mac Lewis
> Sent: Tuesday, December 28, 2021 4:31 PM
> To: RE-wrenches  <mailto:re-wrenches@lists.re-wrenches.org>>
> Subject: [RE-wrenches] ballasted ground mounts residential scale
> 
>  
> 
> Hello Wrenches,
> 
>  
> 
> Can anyone recommend a ballasted ground mount solution that is offered on a 
> residential scale?  Below 10kW typically.
> 
>  
> 
> Thanks in advance!
> 
>  
> 
> --
> 
>  
> 
>  
> 
>  
> 
> Mac Lewis
> 
> "Yo solo sé que no sé nada." -Sócrates
> 
> ___
> List sponsored by Redwood Alliance
> 
> Pay optional member dues here: http://re-wrenches.org 
> <http://re-wrenches.org/>
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> 
> -- 
> 
> 
> 
> Mac Lewis
> 
> "Yo solo sé que no sé nada." -Sócrates
> 
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Re: [RE-wrenches] ballasted ground mounts residential scale

2021-12-29 Thread Mac Lewis 
Thanks Dana,

Normally I do a piered system for these, but I've got a project with a
ground source heat pump loop at unknown depth under the array field.  I'm
trying to avoid a puncture.

Thanks!

On Wed, Dec 29, 2021 at 8:58 AM Dana Orzel  wrote:

> I have used Snapn’Rack’s system with grade beams. It uses a sched 40 - 1½”
> iron/galv pipe to achieve 90 MPH 3 sec micro burst rating for uplift.
> Please verify if this is still available from SnR.  I am pretty sure that
> we needed 18# of concrete/sqft of PV module. I would have your structural
> engineer verify this or whatever your local code calls for.
>
> It’s a good system as long as you do not have frost heaving of the ground.
> I am not sure that I would do this in snow country unless your engineer
> could guaranty that there is a way to eliminate the frost heave.
>
>
>
> And if you are going to have to do that much ground prep why not use a
> pier or footing system?
>
>
>
>
>
>
>
>
>
> Dana Orzel  Great Solar Works, Inc.
>
> *C - 208.721.7003   d...@solarwork.com
> *
>
> Idaho Contractor - # 028765 Idaho PV # 028374
>
> NABCEP # 051112-136   www.greatsolarworks.com
>
> *"Responsible Technologies for Responsible People since 1988"  *
>
> *P* Please consider the environment before printing this email.
>
>
>
>
>
> *From:* RE-wrenches  *On
> Behalf Of *Mac Lewis
> *Sent:* Tuesday, December 28, 2021 4:31 PM
> *To:* RE-wrenches 
> *Subject:* [RE-wrenches] ballasted ground mounts residential scale
>
>
>
> Hello Wrenches,
>
>
>
> Can anyone recommend a ballasted ground mount solution that is offered on
> a residential scale?  Below 10kW typically.
>
>
>
> Thanks in advance!
>
>
>
> --
>
>
>
>
>
>
>
> Mac Lewis
>
> "Yo solo sé que no sé nada." *-Sócrates*
> ___
> List sponsored by Redwood Alliance
>
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-- 



Mac Lewis

*"Yo solo sé que no sé nada." -Sócrates*
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Re: [RE-wrenches] ballasted ground mounts residential scale

2021-12-29 Thread Dana Orzel 
I have used Snapn’Rack’s system with grade beams. It uses a sched 40 - 1½” 
iron/galv pipe to achieve 90 MPH 3 sec micro burst rating for uplift. Please 
verify if this is still available from SnR.  I am pretty sure that we needed 
18# of concrete/sqft of PV module. I would have your structural engineer verify 
this or whatever your local code calls for.

It’s a good system as long as you do not have frost heaving of the ground. I am 
not sure that I would do this in snow country unless your engineer could 
guaranty that there is a way to eliminate the frost heave. 

 

And if you are going to have to do that much ground prep why not use a pier or 
footing system?

 

 

 

 

Dana Orzel  Great Solar Works, Inc. 

C - 208.721.7003   d...@solarwork.com

Idaho Contractor - # 028765 Idaho PV # 028374

NABCEP # 051112-136   www.greatsolarworks.com 
<http://www.greatsolarworks.com> 

"Responsible Technologies for Responsible People since 1988"  

P Please consider the environment before printing this email.

 

 

From: RE-wrenches  On Behalf Of Mac 
Lewis
Sent: Tuesday, December 28, 2021 4:31 PM
To: RE-wrenches 
Subject: [RE-wrenches] ballasted ground mounts residential scale

 

Hello Wrenches,

 

Can anyone recommend a ballasted ground mount solution that is offered on a 
residential scale?  Below 10kW typically.

 

Thanks in advance!


 

-- 

 

 

 

Mac Lewis

"Yo solo sé que no sé nada." -Sócrates

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[RE-wrenches] ballasted ground mounts residential scale

2021-12-28 Thread Mac Lewis 
Hello Wrenches,

Can anyone recommend a ballasted ground mount solution that is offered on a
residential scale?  Below 10kW typically.

Thanks in advance!

-- 



Mac Lewis

*"Yo solo sé que no sé nada." -Sócrates*
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