Re: [RE-wrenches] Ilsco SGB bonding lug

[Jason Szumlanski]

The WEEB-LUG is great for rail bonding:
http://www.we-llc.com/grounding-lug.html

It is UL467, marked Outdoor Use, made of tin-plated copper. The only
disadvantage is that the stainless steel clip must be sacrificed if the lug
is moved - a disadvantage of all WEEB grounding products.

Jason Szumlanski
Fafco Solar


On Mon, Aug 27, 2012 at 7:11 PM, benn kilburn  wrote:

> Thanks for the feedback Wrenches, lots of interesting comments,
>
> However I'm still wondering…..
> How does one confirm that it is specifically approved for outdoor use?
> Other than assuming it is implied (because it is 'marketed' as a solar
> lug).  As far as I can tell UL 467 does not imply "outdoor rated" as the
> aluminum lug "GBL-4" is also UL467 listed.  See here…GBL LAY-IN 
> AL/CU.
>
>
> As well, and as Gary pointed out with his second link, for a module
> bonding/grounding method to be acceptable, it must be recognized by the
> module manufacturer, no?
> Which means that any new bonding product on the market must have the
> blessing  of each mod mfgr.
> (by way of letter or mention in its install manual).  I have come across
> inspectors that actually look for this.
>
> Jason,
> you wrote "I like the looks of that lug. However, I've been using WEEBs
> too long to go back now." I agree, and i'm not looking to replace weebs
> with these, but these certainly seem to have a place in the What do you use
> for the bonding connection from the ?rails?
> This SGB lug was suggested for this purpose as well.
>
>
> Benn
> DayStar Renewable Energy Inc.
> www.daystarsolar.ca  *  Ph: 780-906-7807
> Construction Electrician Solar Photovoltaic Systems Certified
> Certificate # 0007S
> HAVE A SUNNY DAY
>
> On 27/08/12 2:35 PM, "Gary Willett"  wrote:
>
>  Here's the Ilsco listing from UL, where it's classed as "Grounding and
> Bonding Equipment":
>
> http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=KDER.E34440&ccnshorttitle=Grounding+and+Bonding+Equipment&objid=1074099002&cfgid=1073741824&version=versionless&parent_id=1073988940&sequence=1
>
> The GuideInfo for Grounding & Bonding Equipment lists:
>
> *Grounding and Bonding for Photovoltaic (PV) Systems *— Grounding and
> bonding equipment intended for use in PV systems are additionally
> investigated in combination with the PV module/panel (see QIGU) to the
> applicable requirements for such products. Installation instructions
> provided with the PV system (see QIGU) identify the specific grounding and
> bonding device that has been investigated and intended for use with that
> system.
>
>
> http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?&name=KDER.GuideInfo&ccnshorttitle=Grounding+and+Bonding+Equipment&objid=1074098839&cfgid=1073741824&version=versionless&parent_id=1073988940&sequence=1
>
>
>   Regards,
>
> Gary Willett, PE
>  On 8/27/2012 3:20 PM, David Brearley wrote:
>
> Yes, sorry. I wasn't speaking of this lug...I like the redesign. Looks
> quicker and easier and robust.
>
>  On Aug 27, 2012, at 3:17 PM, Jason Szumlanski wrote:
>
> Yeah, but this one is marketed as a solar bonding lug. I think it's safe
> to say that it appropriately rated for outdoor use. It's always good to
> double-check, of course.
>
> Jason Szumlanski
> Fafco Solar
>
>
>
> On Mon, Aug 27, 2012 at 4:11 PM, David Brearley <
> david.brear...@solarprofessional.com> wrote:
>
>> Some of the aluminum lugs are indoor-rated. They have a set screw will
>> rust in an outdoor environment. That's one of the classic John Wiles
>> slides. I'd just watch out for that
>>
>>
>> On Aug 27, 2012, at 12:53 PM, Brian Mehalic 
>> wrote:
>>
>>  I believe the UL467 listing means that it is rated for direct
>> burial/outdoor use.
>>
>>  Brian Mehalic
>> NABCEP Certified Solar PV Installer™ R031508-59
>> IREC ISPQ Certified Affiliated Instructor/PV US-0132
>>
>>  PV Curriculum Developer and Instructor
>> Solar Energy International
>> http://www.solarenergy.org
>>
>>  .org
>>
>>
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[RE-wrenches] Radian

[Drake]

Hello Wrenches,

What is the noise level of the Radian compared with a pair of stacked 
GVFX inverters?


Thanks,

Drake

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Re: [RE-wrenches] Radian

[David Katz]

The fan runs continuously at around 2kW.
David

Sent from my HTC smartphone on the Now Network from Sprint!


- Reply message -
From: "Drake" 
To: "RE-wrenches" 
Subject: [RE-wrenches] Radian
Date: Tue, Aug 28, 2012 5:21 am



Hello Wrenches,

What is the noise level of the Radian compared with a pair of stacked
GVFX inverters?

Thanks,

Drake

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Re: [RE-wrenches] Fronius replacement

[mac Lewis]

Power One Inverters will easily string that low.  We have used quite a few
of these with no problem.  They are ungrounded on the DC side.

On Mon, Aug 27, 2012 at 3:22 PM, Jesse Dahl  wrote:

> I think some Solectria inverters have a low number (115vdc). The
> Solectrias I have worked with had a max DC voltage of 400vdc though.
>
> Jesse
>
> Sent from my iPhone
>
> On Aug 27, 2012, at 4:13 PM, David Brearley <
> david.brear...@solarprofessional.com> wrote:
>
> Off the top of my head...Power-One?
>
> You can download an Excel file with comprehensive string inverter specs
> here:
>
> http://solarprofessional.com/webexclusive/
>
>
>
> On Aug 27, 2012, at 4:06 PM, William Miller wrote:
>
> Friends:
>
> We have a client that wants to divest of 8 Fronius LG-4500 LV inverters.
>  They are experiencing a high number of failures.   The Fronius have an
> unusually low DC input window:  150 to 450 VDC.  This means the stringing
> will result in a lower voltages than typically found and makes it difficult
> to substitute inverters.  Does anyone know of any reliable inverter that
> will work with string voltages in the low 200s?
>
> Thanks in advance.
>
> William Miller
>
>
> Miller Solar
> Voice :805-438-5600
> email: will...@millersolar.com
> http://millersolar.com
> License No. C-10-773985
>
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-- 



Mac Lewis

*

"Yo solo sé que no sé nada." -Sócrates
*
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Re: [RE-wrenches] Fronius replacement

[Gary Willett]

JESSE:

The Power-One specs lists 160V to 530V as the MPPT working range. It's 
possible to set the per MPPT input as low as 120VDC. Power-One does not 
provide info for loss of efficiency if the high-temp DC in[put voltage 
drops below 160V.


Do you have any info on performance degradation between 120V and 160V?

Regards,


Gary Willett, PE


On 8/28/2012 11:31 AM, mac Lewis wrote:
Power One Inverters will easily string that low.  We have used quite a 
few of these with no problem.  They are ungrounded on the DC side.


On Mon, Aug 27, 2012 at 3:22 PM, Jesse Dahl > wrote:


I think some Solectria inverters have a low number (115vdc). The
Solectrias I have worked with had a max DC voltage of 400vdc though.

Jesse

Sent from my iPhone

On Aug 27, 2012, at 4:13 PM, David Brearley
mailto:david.brear...@solarprofessional.com>> wrote:


Off the top of my head...Power-One?

You can download an Excel file with comprehensive string inverter
specs here:

http://solarprofessional.com/webexclusive/



On Aug 27, 2012, at 4:06 PM, William Miller wrote:


Friends:

We have a client that wants to divest of 8 Fronius LG-4500 LV
inverters.  They are experiencing a high number of failures.
  The Fronius have an unusually low DC input window:  150 to 450
VDC.  This means the stringing will result in a lower voltages
than typically found and makes it difficult to substitute
inverters.  Does anyone know of any reliable inverter that will
work with string voltages in the low 200s?

Thanks in advance.

William Miller


Miller Solar
Voice :805-438-5600 
email: will...@millersolar.com 
http://millersolar.com
License No. C-10-773985

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--



Mac Lewis

*

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

*


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[RE-wrenches] Ballasted Roof Racking Recommendations?

[Ryan Harkins]

Anyone have recommendations for a ballasted roof racking manufacturer?  Tilts of 30-degrees or more would be best.  
Ryan HarkinsNABCEP Certified Solar PV Installer /Project Manager         

PastedGraphic-3.pdf
Description: Adobe PDF document
Synergy Renewable Systems, LLCPO Box 58Stoughton, WI 53589PH: 608-712-7862ryan.hark...@energycraft.comwww.energycraft.com___
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Re: [RE-wrenches] Ballasted Roof Racking Recommendations?

[Bill Turberville]

I have used SunPower 5 and 10 degree, Unirac, and DPW.  I don’t know any
that go to 30 Degrees.



*From:* re-wrenches-boun...@lists.re-wrenches.org [mailto:
re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Ryan Harkins
*Sent:* Tuesday, August 28, 2012 1:32 PM
*To:* RE-wrenches
*Subject:* [RE-wrenches] Ballasted Roof Racking Recommendations?



Anyone have recommendations for a ballasted roof racking manufacturer?
 Tilts of 30-degrees or more would be best.



*Ryan Harkins**
NABCEP Certified Solar PV Installer /
Project Manager*
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Re: [RE-wrenches] Ballasted Roof Racking Recommendations?

[Brian Mehalic]

I've used the DPW POWER-FAB BRM several times; it can tilt from 25 to 40º.



Brian Mehalic
NABCEP Certified Solar PV Installer™ R031508-59
IREC ISPQ Certified Affiliated Instructor/PV US-0132

PV Curriculum Developer and Instructor
Solar Energy International
http://www.solarenergy.org



On Tue, Aug 28, 2012 at 2:32 PM, Ryan Harkins
wrote:

> Anyone have recommendations for a ballasted roof racking manufacturer?
>  Tilts of 30-degrees or more would be best.
>
> *Ryan Harkins
> NABCEP Certified Solar PV Installer /
> Project Manager*
>
>
>
>
>
>
> Synergy Renewable Systems, LLC
> PO Box 58
> Stoughton, WI 53589
> PH: 608-712-7862
> ryan.hark...@energycraft.com
> www.energycraft.com
>
>
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Re: [RE-wrenches] Solmetric PVA and Tigo

[Jesse Dahl]

I got an email from Solmetric on this question.  Basically the optimizers 
change the way the modules look electrically so tracing the curve is not 
possible once optimizers are installed. 

They suggest tracing before or using the tool to pre-screen a client with 
shading issues to justify optimization. 

Jesse  

Sent from my iPhone

On Aug 26, 2012, at 1:02 PM, boB  wrote:

> On 8/26/2012 7:54 AM, Jesse Dahl wrote:
>> Hello,
>> 
>> Has anyone has experience using the Solmetric PVA and optimizers?  Is there 
>> any issues?
>> 
>> Jesse
>> 
> 
> 
> You might ask Bill Brooks.  He has a  paragraph of recommendation right on 
> the data sheet.
> for the handheld analyzer.
> 
> boB
> 
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Re: [RE-wrenches] Ballasted Roof Racking Recommendations?

[Mark Richardson]

Ryan,
Panel Claw has a new product that mounts at 15 or 20 deg. but we have not used 
it yet.
We do use the Grizzly Bear product, though and are very happy with it.
I highly recommend it if you can utilize a 10 - 12 deg. tilt angle.

[Description: NYLE LOGO SMALL]
Mark Richardson
Production Manager - New York
New York Light Energy
CELL 518-965-4148
PHONE 518-250-4271 x 1401
FAX  518-250-4374
mrichard...@newyorklightenergy.com

From: re-wrenches-boun...@lists.re-wrenches.org 
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Ryan Harkins
Sent: Tuesday, August 28, 2012 2:32 PM
To: RE-wrenches
Subject: [RE-wrenches] Ballasted Roof Racking Recommendations?

Anyone have recommendations for a ballasted roof racking manufacturer?  Tilts 
of 30-degrees or more would be best.

Ryan Harkins
NABCEP Certified Solar PV Installer /
Project Manager






Synergy Renewable Systems, LLC
PO Box 58
Stoughton, WI 53589
PH: 608-712-7862
ryan.hark...@energycraft.com
www.energycraft.com


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Re: [RE-wrenches] Ballasted Roof Racking Recommendations?

[Glenn Burt]

Hi Ryan,

 

We have used the AET Rayport stainless steel ballasted racking system on
dozens of installations and have been quite satisfied with the light ballast
required (all open racking), integral module grounding, lightweight of
materials (pressed stainless steel) and quickness of assembly.

 

http://aetenergy.com/products/RAYPORT-B-solar-mount-solution

 

Glenn Burt

glb, Consulting Company

 

From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Ryan Harkins
Sent: Tuesday, August 28, 2012 2:32 PM
To: RE-wrenches
Subject: [RE-wrenches] Ballasted Roof Racking Recommendations?

 

Anyone have recommendations for a ballasted roof racking manufacturer?
Tilts of 30-degrees or more would be best.  

 

Ryan Harkins
NABCEP Certified Solar PV Installer /
Project Manager
 




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Re: [RE-wrenches] Radian

[Drake]

Is the fan louder than a pair of stacked GVFX inverters?

Thanks,

Drake

At 11:14 AM 8/28/2012, you wrote:

Content-Language: en-US
Content-Type: multipart/alternative;
boundary="_000_8F23306869D24B10974B3995DAB775B0aeesolarcom_"

The fan runs continuously at around 2kW.
David

Sent from my HTC smartphone on the Now Network from Sprint!


- Reply message -
From: "Drake" 
To: "RE-wrenches" 
Subject: [RE-wrenches] Radian
Date: Tue, Aug 28, 2012 5:21 am



Hello Wrenches,

What is the noise level of the Radian compared with a pair of stacked
GVFX inverters?

Thanks,

Drake

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