Re: [RE-wrenches] Raised racking system

[Chris Mason]

That's what we are looking at, but it's harder to design for this
application, if I didn't have to cost it, I would just go with it.
We use it for ground mount, and it is the strongest racking for tough
conditions. I think it is what we will end up with.


On Wed, Sep 19, 2018 at 3:20 PM, Chris Worcester 
wrote:

> You might consider the SnapNrack Series 200 ground mount system, we
> adapted it to work well on a raised roof mount before.
>
>
>
> Chris Worcester
>
> Solar Wind Works
>
> NABCEP Certified PV Installer
>
> Office 530-582-4503
>
> Cell 530-448-9692
>
> www.solarwindworks.com
>
> ch...@solarwindworks.com
>
>
>
> *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On
> Behalf Of *Chris Mason
> *Sent:* Wednesday, September 19, 2018 10:08 AM
> *To:* RE-wrenches
> *Subject:* [RE-wrenches] Raised racking system
>
>
>
> I'm quoting a job on a concrete roof with three foot parapet walls. I'd
> like to raise the arrays about 24 inches above the roof to minimize
> shading, does any one have a solution for this application?
>
>
>
> --
>
> Chris Mason
>
>
>
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-- 
Chris Mason
NABCEP Certified Solar PV Installer™
Solar Design Engineer
Generac Generators Industrial technician

www.cometsolar.com 
264.235.5670
869.662.5670
Skype: netconcepts
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Re: [RE-wrenches] Engine high temp error shutdown on 6 kw EcoGen.

[John Blittersdorf]

Ray,  it is air cooled so no coolant.  Engine oil is full and reserve tank
is almost full.  Could it be a defective sensor?  Sure wish Generac would
be more helpful to the lowly sales dealers They think we are too stupid
to do basic troubleshooting and only service dealers can talk to their tech
support.  My local service dealer said to disconnect the wires from the
temp sensor but that didn't work..  I'm assuming that a fail safe system
would turn the unit off if a wire became disconnected.   Anyone else out
there have an idea.?

On Wed, Sep 19, 2018 at 11:32 PM Ray  wrote:

> I've seen that happen when the engine was low on coolant or oil.  The
> sensors shut it down.
>
> Ray Walters
> Remote Solar
> 303 505-8760
>
> On 9/19/18 9:24 PM, John Blittersdorf wrote:
>
> First time I have seen this error.  engine starts fine, at the point where
> the frequency stabilizes and it connects... it shuts down with this error.
> Engine is stone cold cannot be overheating.
> Has anybody seen this problem and know the answer?
>
> John Blittersdorf
> CV Wind Service (and Solar)
>
>
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[RE-wrenches] Raised up ground mounts

[Jason Szumlanski]

Any suggestions for ground mount racks where panels need to have the
leading edge 6-8 feet above grade (due to flood level requirement)? Also,
high wind area... 100kw system rating. Tilt can be as low as 5-10%. We're
getting into carport territory here, but I'm trying to keep the cost
reasonable since it won't have a dual function like a carport or shade
structure.

Jason Szumlanski
Florida Solar Design Group
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Re: [RE-wrenches] Raised up ground mounts

[Jeff Clearwater]

Hey Jason,Have you considered
 Pole Mounts?  DPW has a multi-pole system (http://preformed.com/solar/commercial/pole-mounts)
 that lends itself well to larger systems.Hope that helps!Best,JeffJason
 Szumlanski wrote:Any suggestions for ground mount racks 
where panels need to have the leading edge 6-8 feet above grade (due to 
flood level requirement)? Also, high wind area... 100kw system rating. 
Tilt can be as low as 5-10%. We're getting into carport territory here, 
but I'm trying to keep the cost reasonable since it won't have a dual 
function like a carport or shade structure. Jason SzumlanskiFlorida Solar Design 
Group

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-- Jeff Clearwater






Village Power Design

Renewable Energy Design & InstallationEcovillage Design 
ConsultantFormer NABCEP 
Certified - 2003-2012Licensed




 Solar Contractor in CA - C-46






www.villagepowerdesign.com






413-559-9763
~~













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Re: [RE-wrenches] Raised up ground mounts

[Lorenzo Ortiz]

 We've used DPW also with good results. We design for 110 mph winds out
here and, depending on how high you go, can require some pretty beefy SCH80
8"-10"D pipe.
MT Solar might be something to look at too. They make multi-pole mounts for
larger arrays but can get a little pricey.

Good luck!


On Thu, Sep 20, 2018 at 4:55 AM, Jason Szumlanski <
ja...@floridasolardesigngroup.com> wrote:

> Any suggestions for ground mount racks where panels need to have the
> leading edge 6-8 feet above grade (due to flood level requirement)? Also,
> high wind area... 100kw system rating. Tilt can be as low as 5-10%. We're
> getting into carport territory here, but I'm trying to keep the cost
> reasonable since it won't have a dual function like a carport or shade
> structure.
>
> Jason Szumlanski
> Florida Solar Design Group
>
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-- 
*Loren Ortiz   Commercial PV Designer*

lo...@cal-solar.com *  (530) 274-3671*

-- 
 
*Showroom located at: 149 
E Main St. Grass Valley, CA 95945*
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[RE-wrenches] High Volume Solar Pumping

[Mac Lewis]

Hello Wrenches,

This is a larger volume pumping application than I have designed before so
I'm trying to head in the right direction.

We need ~ 144,000 gallons per day
Head is ~70'

We'd like to do this via a surface pump(s) if possible.

Do you know any equipment that may be able to do this volume per day?

Thanks in advance

-- 



Mac Lewis

*"Yo solo sé que no sé nada." -Sócrates*
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Re: [RE-wrenches] Raised up ground mounts

[Sam Haraldson]

Take a look at SnapNrack Series 200 ground mounts.  They are based around
locally sourced galvanized pipe (typically comes in 21' lengths) and they
can be designed in various heights off the ground.

Sam Haraldson
OnSite Energy, Inc.

>
>
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Re: [RE-wrenches] High Volume Solar Pumping

[Jay]

Mac 
Look at the grundfos RSI 

It’ll go up to 37kw  for standard 3 phase pumps. 

At 37kw it’s 480 3 phase output and 1000vdc input if I remember correctly 

Jay




> On Sep 20, 2018, at 10:04 AM, Mac Lewis  wrote:
> 
> Hello Wrenches,
> 
> This is a larger volume pumping application than I have designed before so 
> I'm trying to head in the right direction.
> 
> We need ~ 144,000 gallons per day
> Head is ~70'
> 
> We'd like to do this via a surface pump(s) if possible.
> 
> Do you know any equipment that may be able to do this volume per day?
> 
> Thanks in advance
> 
> -- 
> 
> 
> 
> Mac Lewis
> 
> "Yo solo sé que no sé nada." -Sócrates
> 
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Re: [RE-wrenches] Raised up ground mounts

[Jason Szumlanski]

I wish! 180mph, Exposure Category D - about as bad as it gets in the US. I
don't think pole mount will work around here. We need a really beefy
structure. It's probably going to have to be custom... and expensive...


On Thu, Sep 20, 2018 at 11:10 AM Lorenzo Ortiz 
wrote:

> We've used DPW also with good results. We design for 110 mph winds out
> here and, depending on how high you go, can require some pretty beefy SCH80
> 8"-10"D pipe.
> MT Solar might be something to look at too. They make multi-pole mounts
> for larger arrays but can get a little pricey.
>
> Good luck!
>
>
> On Thu, Sep 20, 2018 at 4:55 AM, Jason Szumlanski <
> ja...@floridasolardesigngroup.com> wrote:
>
>> Any suggestions for ground mount racks where panels need to have the
>> leading edge 6-8 feet above grade (due to flood level requirement)? Also,
>> high wind area... 100kw system rating. Tilt can be as low as 5-10%. We're
>> getting into carport territory here, but I'm trying to keep the cost
>> reasonable since it won't have a dual function like a carport or shade
>> structure.
>>
>> Jason Szumlanski
>> Florida Solar Design Group
>>
>> ___
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>>
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>>
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>>
>>
>>
>
>
> --
> *Loren Ortiz   Commercial PV Designer*
>
> lo...@cal-solar.com *  (530) 274-3671*
>
>
>
>
> 
> *Showroom located at: 149 E Main St. Grass Valley, CA 95945*
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Re: [RE-wrenches] Low voltage DC v. higher voltage DC

[Chris Schaefer]

Hey Michael from SMA, any chance we can finally get an 240vac SI here in
the states?

Christopher

On Tue, Sep 18, 2018 at 12:11 PM, Harry Mahon  wrote:

> Marco –
>
>
>
> I will need to ask for information about the BYD availability.  Once those
> units have all required listings/certifications and are available in US,
> they should be ready to use with SBS.  The CANBUS comms to the BMS has
> already been vetted, and they are on the SMA Approved battery list
> already.  But I will get confirmation on the immediate usability.
>
>
>
> Best regards –
>
> Mike
>
>
>
>
>
>
>
>
>
> SMA America
> Michael Mahon
> Technical Trainer, Solar Academy
> 6020 West Oaks Boulevard, Suite 300
>
> Rocklin, CA 95765
>
> U.S.A.
> Mobile:   +1 916 918 9412
> * www.SMA-America.com *
>
>
>
> Solar Academy: www.SMA-America.com/partners/sma-solar-academy/overview.
> html 
>
>
>
> Full training schedule: https://www.sma-america.com/
> partners/sma-solar-academy/seminars/trainings/training/list.html
>
>
>
>
>
> [image:
> http://sma-planet.sma.de/fileadmin/fm-dam/infos/social_media/facebook.jpg]
>  [image:
> http://sma-planet.sma.de/fileadmin/fm-dam/infos/social_media/twitter.jpg]
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> http://sma-planet.sma.de/fileadmin/fm-dam/infos/social_media/wordpress.jpg]
>  [image: Linkedin Logo]
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> http://sma-planet.sma.de/fileadmin/fm-dam/infos/social_media/youtube.jpg]
>  [image:
> SMAAFORUM_ICON] 
>
> [image: cid:image008.jpg@01D43B9E.70803930]
>
>
>
>
>
> This email and any attachments thereto may contain SMA America, LLC
> confidential, privileged and private material for the sole use of the
> intended recipient. Any review, copying, or distribution of this email (or
> any attachments thereto) by others is strictly prohibited. If you are not
> the intended recipient, please contact the sender immediately and
> permanently delete the original and any copies of this email and any
> attachments thereto. Thank you.
>
>
>
> *From:* RE-wrenches  *On
> Behalf Of *Marco Mangelsdorf
> *Sent:* Monday, September 17, 2018 10:20 PM
>
> *To:* RE-wrenches 
> *Subject:* Re: [RE-wrenches] Low voltage DC v. higher voltage DC
>
>
>
> Mahalo Mike.
>
>
>
> Can you tell us please when the SS will actually be able to integrate the
> BYD battery platform in the north American market?
>
>
>
> marco
>
> On Monday, September 17, 2018, Harry Mahon 
> wrote:
>
> Marco and all – yes that is the correct spec sheet for the BYD batteries
> that will work with Sunny Boy Storage.
>
>
>
> SMA strongly would recommend the Sunny Island for off-grid in general and
> certainly whole home backup.  See the attached from Home Power April/May
> 2011; quad stack of SIs acting as UPS for the home – just charging
> batteries when grid is present, powering home with batteries/PV when grid
> is gone.  A dual split phase cluster is almost 24,000 W continuous (!)
> capability and can handle crazy power factor loads with no issues.  Built
> in generator functions and two relay positions per Sunny Island allow for
> lots of redundancy and fail-safe load shedding to be built in.
>
>
>
> The Sunny Boy Storage (SBS) is designed to be a grid-tied inverter to
> allow higher self consumption of local PV power.  Even with the ABU to
> allow off grid operation (grid forming on its AC outputs rather than just
> on the dedicated 120VAC Secure Power Supply outlet), there can be a several
> second delay in the switch from grid power to microgrid as the ABU must
> signal the Sunny Boy Storage that it has disconnected from the grid and
> that it is safe for the SBS to form a grid on its output terminals.  Also
> be aware that there is no master-slave configuration ability with the SBS –
> they will always assume they are acting independently on their energy meter
> input information.
>
>
>
> Best regards –
>
> Mike
>
>
>
> SMA America
> Michael Mahon
> Technical Trainer, Solar Academy
> 6020 West Oaks Boulevard, Suite 300
>
> Rocklin, CA 95765
>
> U.S.A.
> Mobile:   +1 916 918 9412
> * www.SMA-America.com *
>
>
>
> Solar Academy: www.SMA-America.com/partners/sma-solar-academy/overview.
> html 
>
>
>
> Full training schedule: https://www.sma-america.com/
> partners/sma-solar-academy/seminars/trainings/training/list.html
>
>
>
>
>
> [image:
> http://sma-planet.sma.de/fileadmin/fm-dam/infos/social_media/facebook.jpg]
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Re: [RE-wrenches] Low voltage DC v. higher voltage DC

[Tump]

I bet Mike could retire from the industry if he had a nickel for every time he 
was asked for/about that. I’ve asked Santa for years…… still waiting. T
> On Sep 20, 2018, at 5:21 PM, Chris Schaefer  wrote:
> 
> Hey Michael from SMA, any chance we can finally get an 240vac SI here in the 
> states?
> 
> Christopher
> 
> On Tue, Sep 18, 2018 at 12:11 PM, Harry Mahon  > wrote:
> Marco –
> 
>  
> 
> I will need to ask for information about the BYD availability.  Once those 
> units have all required listings/certifications and are available in US, they 
> should be ready to use with SBS.  The CANBUS comms to the BMS has already 
> been vetted, and they are on the SMA Approved battery list already.  But I 
> will get confirmation on the immediate usability.
> 
>  
> 
> Best regards –
> 
> Mike
> 
>  
> 
>  
> 
>  
> 
>  
> 
> SMA America
> Michael Mahon
> Technical Trainer, Solar Academy
> 6020 West Oaks Boulevard, Suite 300
> 
> Rocklin, CA 95765
> 
> U.S.A.
> Mobile:   +1 916 918 9412
> www.SMA-America.com 
>  
> 
> Solar Academy: www.SMA-America.com/partners/sma-solar-academy/overview.html 
> 
>  
> 
> Full training schedule: 
> https://www.sma-america.com/partners/sma-solar-academy/seminars/trainings/training/list.html
>  
> 
>  
> 
>  
> 
>   
>    
>   
>   
>   
>  
> 
> 
> 
>  
> 
>  
> 
> This email and any attachments thereto may contain SMA America, LLC 
> confidential, privileged and private material for the sole use of the 
> intended recipient. Any review, copying, or distribution of this email (or 
> any attachments thereto) by others is strictly prohibited. If you are not the 
> intended recipient, please contact the sender immediately and permanently 
> delete the original and any copies of this email and any attachments thereto. 
> Thank you.
> 
>  
> 
> From: RE-wrenches  > On Behalf Of Marco 
> Mangelsdorf
> Sent: Monday, September 17, 2018 10:20 PM
> 
> 
> To: RE-wrenches  >
> Subject: Re: [RE-wrenches] Low voltage DC v. higher voltage DC
> 
>  
> 
> Mahalo Mike. 
> 
>  
> 
> Can you tell us please when the SS will actually be able to integrate the BYD 
> battery platform in the north American market? 
> 
>  
> 
> marco 
> 
> On Monday, September 17, 2018, Harry Mahon  > wrote:
> 
> Marco and all – yes that is the correct spec sheet for the BYD batteries that 
> will work with Sunny Boy Storage.
> 
>  
> 
> SMA strongly would recommend the Sunny Island for off-grid in general and 
> certainly whole home backup.  See the attached from Home Power April/May 
> 2011; quad stack of SIs acting as UPS for the home – just charging batteries 
> when grid is present, powering home with batteries/PV when grid is gone.  A 
> dual split phase cluster is almost 24,000 W continuous (!) capability and can 
> handle crazy power factor loads with no issues.  Built in generator functions 
> and two relay positions per Sunny Island allow for lots of redundancy and 
> fail-safe load shedding to be built in.
> 
>  
> 
> The Sunny Boy Storage (SBS) is designed to be a grid-tied inverter to allow 
> higher self consumption of local PV power.  Even with the ABU to allow off 
> grid operation (grid forming on its AC outputs rather than just on the 
> dedicated 120VAC Secure Power Supply outlet), there can be a several second 
> delay in the switch from grid power to microgrid as the ABU must signal the 
> Sunny Boy Storage that it has disconnected from the grid and that it is safe 
> for the SBS to form a grid on its output terminals.  Also be aware that there 
> is no master-slave configuration ability with the SBS – they will always 
> assume they are acting independently on their energy meter input information. 
> 
>  
> 
> Best regards –
> 
> Mike
> 
>  
> 
> SMA America
> Michael Mahon
> Technical Trainer, Solar Academy
> 6020 West Oaks Boulevard, Suite 300
> 
> Rocklin, CA 95765
> 
> U.S.A.
> Mobile:   +1 916 918 9412
> www.SMA-America.com 
>  
> 
> Solar Academy: www.SMA-America.com/partners/sma-solar-academy/overview.html 
> 
>  
> 
> Full training schedule: 
> https://www.sma-america.com/partners/sma-solar-academy/seminars/trainings/training/list.html
>  
> 
>  
> 
>  
> 
>  
> 

Re: [RE-wrenches] Raised up ground mounts

[Jay]

Iron ridge has a 3” option



> On Sep 20, 2018, at 2:15 PM, Jason Szumlanski 
>  wrote:
> 
> 
> I wish! 180mph, Exposure Category D - about as bad as it gets in the US. I 
> don't think pole mount will work around here. We need a really beefy 
> structure. It's probably going to have to be custom... and expensive...
> 
> 
>> On Thu, Sep 20, 2018 at 11:10 AM Lorenzo Ortiz  wrote:
>> We've used DPW also with good results. We design for 110 mph winds out here 
>> and, depending on how high you go, can require some pretty beefy SCH80 
>> 8"-10"D pipe.
>> MT Solar might be something to look at too. They make multi-pole mounts for 
>> larger arrays but can get a little pricey.
>> 
>> Good luck!
>> 
>> 
>>> On Thu, Sep 20, 2018 at 4:55 AM, Jason Szumlanski 
>>>  wrote:
>>> Any suggestions for ground mount racks where panels need to have the 
>>> leading edge 6-8 feet above grade (due to flood level requirement)? Also, 
>>> high wind area... 100kw system rating. Tilt can be as low as 5-10%. We're 
>>> getting into carport territory here, but I'm trying to keep the cost 
>>> reasonable since it won't have a dual function like a carport or shade 
>>> structure. 
>>> 
>>> Jason Szumlanski
>>> Florida Solar Design Group
>>> 
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>> 
>> 
>> 
>> -- 
>> Loren Ortiz   Commercial PV Designer
>> 
>> lo...@cal-solar.com  (530) 274-3671
>>   
>> 
>> 
>> 
>> Showroom located at: 149 E Main St. Grass Valley, CA 95945
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Re: [RE-wrenches] High Volume Solar Pumping

[Windy Dankoff]

Mac — Jay has a good suggestion of the Grundfos RSI. There are other companies 
making “solar pump inverters” to run standard 3-ph. pumps. And, that IS the way 
to go for systems of this size. 

Another supplier in USA is SunPumps. Another is GenPro (Lorentz distributor).

How to compare them?  The inverter will represent a small proportion of the 
system cost, so I would have to ask each prospective supplier to produce a 
system design for you. Compare them carefully in regard to how they are 
expected to handle less-than full sun conditions. Also “bells and whistles” can 
be extremely helpful, meaning data-logging and remote connectivity and control 
features. Another rare feature is the ability to handle both solar and backup 
power sources, not merely by transfer switch or relay but by blending them with 
solar priority.

Lorentz has been the leader in these features, but others have been catching 
up. I hope you (and others) will report back about your findings! I’m still 
researching this field form my upcoming book.

Windy Dankoff
Author, Consultant

 http://www.windydankoff.com 

   Specialist in solar-electric applications & solar water pumping
Education   <>   Industry support<>Since 1975

Co-author  Solar Water Pumping (Taylor & Francis, Earthscan London) for 
publication in 2019


> From: Jay mailto:jay.pe...@gmail.com>>
> Subject: Re: [RE-wrenches] High Volume Solar Pumping
> Date: September 20, 2018 at 11:24:39 AM MDT
> To: RE-wrenches  >
> 
> 
> Mac 
> Look at the grundfos RSI 
> 
> It’ll go up to 37kw  for standard 3 phase pumps. 
> 
> At 37kw it’s 480 3 phase output and 1000vdc input if I remember correctly 
> 
> Jay

>> On Sep 20, 2018, at 3:01 PM, re-wrenches-requ...@lists.re-wrenches.org 
>>  wrote:
>> 
>> From: Mac Lewis mailto:maclew...@gmail.com>>
>> Subject: [RE-wrenches] High Volume Solar Pumping
>> Date: September 20, 2018 at 11:04:21 AM MDT
>> To: RE-wrenches > >
>> 
>> 
>> Hello Wrenches,
>> 
>> This is a larger volume pumping application than I have designed before so 
>> I'm trying to head in the right direction.
>> 
>> We need ~ 144,000 gallons per day
>> Head is ~70'
>> 
>> We'd like to do this via a surface pump(s) if possible.
>> 
>> Do you know any equipment that may be able to do this volume per day?
>> 
>> Thanks in advance
>> 
>> -- 
>> 
>> Mac Lewis
> 
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