Re: [RE-wrenches] Admin posting: Sol-Ark on list

[MiJo Nels]

Tom Brennen is their founding engineer and my absolute favorite person's brain 
to pick.. I strongly suggest he speak on their(technical) behalf.. 

Joe Nelson

Project Manager C-46/C-10
Sustainable Energy Group Inc., A California Corporation

CSL# 868816
www.SustainableEnergyGroup.com
530-273-4422 (Office)

530-217-8385 (Cell)



   



From: RE-wrenches  on behalf of 
Michael Welch 
Sent: Thursday, September 10, 2020 6:57:00 PM
To: RE-wrenches@lists.re-wrenches.org 
Subject: [RE-wrenches] Admin posting: Sol-Ark on list

Hi gang. If you have any questions or comments, please send them to me off-list.

I've had several of you suggest to me off-list that Sol-Ark should have a 
manufacturer's representative on the list. I agree.

On 8/28, one of their employees requested to be added. I responded with my 
standard spiel but haven't heard back yet. Sometimes it takes awhile for 
companies to decide who should be the rep, I just want to make sure they are 
solid technically and not there to do promotion or marketing.

I don't know if that person intends to follow through, though. I'm open to 
suggestions about who to invite, but it's ultimately up to their tech dept. to 
decide who they want. Whomever is OK with me as long as they fit our criteria 
for manufacturers' reps, and their company is OK with that person.

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[RE-wrenches] Admin posting: Sol-Ark on list

[Michael Welch]

Hi gang. If you have any questions or comments, please send them to me off-list.

I've had several of you suggest to me off-list that Sol-Ark should have a 
manufacturer's representative on the list. I agree.

On 8/28, one of their employees requested to be added. I responded with my 
standard spiel but haven't heard back yet. Sometimes it takes awhile for 
companies to decide who should be the rep, I just want to make sure they are 
solid technically and not there to do promotion or marketing. 

I don't know if that person intends to follow through, though. I'm open to 
suggestions about who to invite, but it's ultimately up to their tech dept. to 
decide who they want. Whomever is OK with me as long as they fit our criteria 
for manufacturers' reps, and their company is OK with that person. 

___
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://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

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

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

Re: [RE-wrenches] Microgrid... Outback or SMA or other?

[Bill Hennessy]

Hi folks--We've just finished our first dual 12kW Sol-Ark install (replacing a 
Fronius 10kW from 10 years ago) and I have a few comments on  the recent 
questions.
First, Sol-Ark started with a frustrating manual, but they are improving. To 
address Dave's question, the on-line manual for the 8k is August 2019 and the 
12k is August 2020.
The latest Sol-Ark manual shows fuses on both legs of the pv, but this is 
something you'll have to provide outside the inverter. The pv inputs for the 
inverters are terminals only, no over current protection.  For NEC 2014, 
Sol-Ark says and we agreed, that if the mppt inputs are limited to two strings, 
there is no need for over current protection, depending on the current output 
of the modules. But, I understand this is a gray area and in matters of code, I 
am often wrong. We piped the pv to midget fuses on a din rail in boxes outside 
the inverters. 

Jeff mentioned using the Midnite 125 bypass. Each Sol-Ark inverter output is 
limited to 33A off grid and 37.5A on grid, so any 100a bypass switch would work 
for two Sol-Arks. Wish I would have know about the Midnite. We went with the 
Reliance TCA1010D, but it costs more and there is little room for your fingers, 
much less the wire. We ended up adding a nice size j-box below the Reliance and 
used Morris connectors (similar to Polaris) to bring the two Sol-Arks together.
On the inverters, the pv disconnect is on the bottom of the box, way in the 
back. This is frustrating, because you can't bring a six or eight inch gutter 
up to the inverters--you need about 3-4 inches to get a hand in there to reach 
the disconnect--more time making little pieces of pvc nipples with box adapters 
and oh, don't forget you have to fit metal conduit for the pv conductors and 
keep them bundled separately in the gutter. Also wish the conduit knock outs 
were one size bigger, but old, arthritic fingers are always calling for bigger 
boxes and conduit.

The Sol-Ark wifi dongle connection for the third-party PowerView is also stuck 
in the back underside and its connections are wiggly.
The Sol-Ark service desk has been very good with both responses and wait times.

With no charge controller and 500 vdc strings, the Sol-Ark is great. For this 
install, we used the existing pole-mounted 40 Sharp 240s on four strings and 
added 36 Trina 380s on the barn roof (four strings of nine). The Sharps went to 
one inverter and the Trinas the other. Eight Simpliphi 3.8s make up the battery 
bank. Now, if Sol-Ark will make the move to 600V and move the pv disconnect to 
the sideMore power Scotty.

For right now, in the past 13 years, I've run an 120V Outback 3648 at home and 
it's been trouble free, but when the shoemaker's kids get new shoes, they'll be 
Sol-Ark.
I always appreciate the help and sharing on this list.

regards, bill

Bill HennessyBerks 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 

On Thursday, September 10, 2020, 2:30:59 PM EDT, Dave Angelini Offgrid 
Solar  wrote:  
 
 
I am confused by the 2 different Sol Ark systems. The large one looks like it 
has a DC disco/breaker and a solar disco.

The smaller solark looks like it has a DC breaker only. Any guidance on what 
else is needed to make these useable please?
 Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridso...@sti.net
text 209 813 0060
On Thu, 10 Sep 2020 11:12:31 -0700, Jeff Clearwater 
 wrote:

 Yea I'm wondering the easiest way to get a 125 AMP Midnite Inverter Bypass 
assembly in a simple box for 2 Sol-Arks.  Midnite would be the perfect 
candidate for a simple support box (e-panel style) for Stacked Sol-Arks.
 
 Any ideas?
 
 Thanks,
 
 Jeff
 
 Dave Angelini Offgrid Solar wrote on 9/10/20 9:37 AM:


In an all in one, the good parts are balanced,  sometimes,  by a small failure 
making the all in one useless. Only a complete spare will save the day, or 
night...Also wonder about real world surge capacity on 1 hp pumps and big air 
compressors.

I am glad to hear that they will be making this in Texas, rather than currently 
only in China. Anyone have more on this please?

AC bypass switching is a must for SolArk. They need a PDP or some way to make 
this easier. The dual mppts are perfect for virtual tracking. I begged for a 
dual mppt on the new Schneider high voltage 100a mppt :(

I wish them good luck and take back most of my concerns. Hope they can make it! 
 Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridso...@sti.net
text 209 813 0060
On Thu, 10 Sep 2020 07:44:36 -0400, Jason Szumlanski 
 wrote:

 There is a huge distinction in a hybrid inverter that integrates MPPT charge 
control. Eliminating all of the extraneous hardware and circuit protection 
associated with charge controllers is very appealing. The 500V input limit is 
also a 

Re: [RE-wrenches] Microgrid... Outback or SMA or other?

[Jason Szumlanski]

Related question, Jeff... With the Sol-Ark, I an off-grid situation can you
set it up to always use inveters to power loads. In other words, when the
generator kicks in, only use the generator to charge batteries and do not
bypass inveters to power loads directly from the generator.

This is a request I get occasionally. People don't want to rely on the
"dirty" generator power with sensitive electronics.

Jason


On Thu, Sep 10, 2020, 1:19 PM Jeff Clearwater  wrote:

> I'm loving my first install of Sol Arks - One downside of Sol-Ark (and I
> can't find many!) is that the GEN terminal can only handle 1 of the
> following 3:  Generator, AC Coupling, or Smart Load.  So if you want both a
> generator and AC coupling you have to either do a separate transfer switch
> for the GEN and not run it through the inverters - or you have to go with
> their internal DC MPPTif you do want the GEN to charge the batteries
> (unless you are off-grid totally and have no Grid in which case you might
> be able to run the Generator into Grid?  not sure about that - don't quote
> me!).
>
> Anyone else with any downsides?
>
> Best,
>
> Jeff
>
>
>
> Jason Szumlanski wrote on 9/10/20 4:44 AM:
>
> There is a huge distinction in a hybrid inverter that integrates MPPT
> charge control. Eliminating all of the extraneous hardware and circuit
> protection associated with charge controllers is very appealing. The 500V
> input limit is also a game-changer in terms of wire size. I'm very
> interested in this approach.
>
> On the flip size, an AC Coupled approach is also appealing in a lot of
> circumstances. Since Sol-Ark supports that, too, it's hard to find
> downsides other than their infancy in the industry.
>
> And for what it's worth, my experience with SMA tech support recently has
> been abysmal. Long hold times and getting bounced around departments.
>
> Jason Szumlanski
>
>
>
> On Wed, Sep 9, 2020 at 9:50 PM Mark Frye  wrote:
>
>> The most important thing here is that no one is standing up to sing the
>> praises of either SMA or Outback.
>>
>> I myself have sent about 2 hours on hold over 2 days trying to get an
>> issue addressed by SMA.
>>
>> Re: Sol-Arc I would pay a lot extra or take some not so good aspect in
>> exchange for good technical support.
>> On 9/9/2020 1:12 PM, Jason Szumlanski wrote:
>>
>> Any tips on combining AC output from these units when stacking several of
>> them? What bus/OCPD system are you using? Same question for generator/grid
>> input.
>>
>> The solar MPPT inputs appear to be dead simple.
>>
>> Jason Szumlanski
>>
>>
>>
>>
>>
>>
>>
>>
>> On Tue, Sep 8, 2020 at 10:45 PM MiJo Nels 
>> wrote:
>>
>>> we've found SolArk to be SOLID!! .. And yes 8 inv yield about 96kW, with
>>> a TON of surge capabilities..
>>>
>>> Joe Nelson
>>>
>>> Project Manager C-46/C-10
>>> Sustainable Energy Group Inc., A California Corporation
>>>
>>> CSL# 868816
>>> www.SustainableEnergyGroup.com
>>> 
>>> 530-273-4422 (Office)
>>>
>>> 530-217-8385 (Cell)
>>>
>>> 
>>>
>>>    
>>>
>>>
>>> --
>>> *From:* RE-wrenches  on
>>> behalf of pgir...@mindspring.com 
>>> *Sent:* Tuesday, September 8, 2020 1:24:03 PM
>>> *To:* 'RE-wrenches' 
>>> *Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or other?
>>>
>>>
>>> I also suggest the Sol-Ark 12’s. Extremely efficient, simple to program,
>>> does a wonderful job in either ac coupling, stand alone or pure off grid
>>> and terrific customer support.
>>>
>>>
>>>
>>> Peter Giroux
>>>
>>> ASAE
>>>
>>>
>>>
>>> *From:* RE-wrenches  *On
>>> Behalf Of *Bryan Norkunas
>>> *Sent:* Tuesday, September 8, 2020 1:50 PM
>>> *To:* 'RE-wrenches' 
>>> *Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or other?
>>>
>>>
>>>
>>> Sol-Arks would be possible, you can link 8 inverters.
>>>
>>>
>>>
>>> *Bryan *
>>>
>>> *PV-Cables*
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org
>>> ] *On Behalf Of *Chris
>>> Schaefer
>>> *Sent:* Tuesday, September 8, 2020 10:40 AM
>>> *To:* RE-wrenches
>>> *Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or other?
>>>
>>>
>>>
>>> I'd suggest giving the crew at Sol-Ark a quick call @ 972-575-8875 with
>>> their 12kw unit. Not sure what their max number of inverters are.
>>>
>>>
>>>
>>> Christopher
>>>
>>>
>>>
>>> On Tue, Sep 8, 2020 at 1:14 PM Kienan Maxfield <
>>> maxfieldso...@hotmail.com> wrote:
>>>
>>> Hey all, I'm designing a microgrid sized off-grid system for somebody,
>>> and I'm just wondering if anyone knows of any issues with the following
>>> designs...
>>>
>>>
>>>
>>> The client says he needs 70 kW. His load data looks pretty solid, so I'm
>>> sticking to using that number as a minimum, at least during the initial
>>> proposal stage. I only know of two possible equipment options for this size
>>> 

Re: [RE-wrenches] Microgrid... Outback or SMA or other?

[Dave Angelini Offgrid Solar]

I am confused by the 2 different Sol Ark systems. The large one looks
like it has a DC disco/breaker and a solar disco. 

The smaller solark
looks like it has a DC breaker only. Any guidance on what else is needed to
make these useable please?  

Dave Angelini Offgrid Solar
"we go where
powerlines don't"
http://members.sti.net/offgridsolar/ [1]
e-mail
offgridso...@sti.net [2]
text 209 813 0060

On Thu, 10 Sep 2020 11:12:31
-0700, Jeff Clearwater  wrote:  Yea I'm wondering the easiest way to get a
125 AMP Midnite Inverter Bypass assembly in a simple box for 2 Sol-Arks.
Midnite would be the perfect candidate for a simple support box (e-panel
style) for Stacked Sol-Arks.

 Any ideas?

 Thanks,

 Jeff

 Dave Angelini
Offgrid Solar wrote on 9/10/20 9:37 AM:

In an all in one, the good parts
are balanced, sometimes, by a small failure making the all in one useless.
Only a complete spare will save the day, or night...Also wonder about real
world surge capacity on 1 hp pumps and big air compressors. 

I am glad to
hear that they will be making this in Texas, rather than currently only in
China. Anyone have more on this please? 

AC bypass switching is a must for
SolArk. They need a PDP or some way to make this easier. The dual mppts are
perfect for virtual tracking. I begged for a dual mppt on the new Schneider
high voltage 100a mppt :( 

I wish them good luck and take back most of my
concerns. Hope they can make it!   

Dave Angelini Offgrid Solar
"we go
where powerlines don't"
http://members.sti.net/offgridsolar/ [3]
e-mail
offgridso...@sti.net [4]
text 209 813 0060

On Thu, 10 Sep 2020 07:44:36
-0400, Jason Szumlanski  [5] wrote:  There is a huge distinction in a
hybrid inverter that integrates MPPT charge control. Eliminating all of the
extraneous hardware and circuit protection associated with charge
controllers is very appealing. The 500V input limit is also a game-changer
in terms of wire size. I'm very interested in this approach.   On the flip
size, an AC Coupled approach is also appealing in a lot of circumstances.
Since Sol-Ark supports that, too, it's hard to find downsides other than
their infancy in the industry.   And for what it's worth, my experience
with SMA tech support recently has been abysmal. Long hold times and
getting bounced around departments.   Jason Szumlanski 

  On Wed, Sep 9, 2020 at 9:50 PM Mark Frye  wrote:   

The most important
thing here is that no one is standing up to sing the praises of either SMA
or Outback. 

I myself have sent about 2 hours on hold over 2 days trying
to get an issue addressed by SMA. 

Re: Sol-Arc I would pay a lot extra or
take some not so good aspect in exchange for good technical support. On
9/9/2020 1:12 PM, Jason Szumlanski wrote:Any tips on combining AC
output from these units when stacking several of them? What bus/OCPD system
are you using? Same question for generator/grid input.The solar MPPT
inputs appear to be dead simple.   Jason Szumlanski

  On Tue,
Sep 8, 2020 at 10:45 PM MiJo Nels  wrote:   we've found SolArk to be
SOLID!! .. And yes 8 inv yield about 96kW, with a TON of surge
capabilities..   Joe Nelson Project Manager C-46/C-10 Sustainable Energy
Group Inc., A California Corporation CSL# 868816
www.SustainableEnergyGroup.com [8] 530-273-4422 (Office) 530-217-8385
(Cell)       
-
 FROM: RE-wrenches  on behalf
of pgir...@mindspring.com [10] 
 SENT: Tuesday, September 8, 2020 1:24:03
PM
 TO: 'RE-wrenches' 
 SUBJECT: Re: [RE-wrenches] Microgrid... Outback or
SMA or other?  

I also suggest the Sol-Ark 12's. Extremely efficient,
simple to program, does a wonderful job in either ac coupling, stand alone
or pure off grid and terrific customer support. 

Peter Giroux 

ASAE


FROM: RE-wrenches  ON BEHALF OF Bryan Norkunas
 SENT: Tuesday, September
8, 2020 1:50 PM
 TO: 'RE-wrenches' 
 SUBJECT: Re: [RE-wrenches]
Microgrid... Outback or SMA or other?   

Sol-Arks would be possible, you
can link 8 inverters. 

BRYAN  

PV-CABLES 

FROM: RE-wrenches
[mailto:re-wrenches-boun...@lists.re-wrenches.org [15]] ON BEHALF OF Chris
Schaefer
 SENT: Tuesday, September 8, 2020 10:40 AM
 TO: RE-wrenches

SUBJECT: Re: [RE-wrenches] Microgrid... Outback or SMA or other? 

I'd
suggest giving the crew at Sol-Ark a quick call @ 972-575-8875 with their
12kw unit. Not sure what their max number of inverters are.  

Christopher 


On Tue, Sep 8, 2020 at 1:14 PM Kienan Maxfield  wrote: 

Hey all,
I'm designing a microgrid sized off-grid system for somebody, and I'm just
wondering if anyone knows of any issues with the following designs...   


The client says he needs 70 kW. His load data looks pretty solid, so I'm
sticking to using that number as a minimum, at least during the initial
proposal stage. I only know of two possible equipment options for this size
range...   

* I think I can use up to 10 Outback Radians, for up to an
80 kW system. Are there any bugs or problems with 

Re: [RE-wrenches] Microgrid... Outback or SMA or other?

[Jeff Clearwater]

I'm loving my first install of Sol Arks - One downside of Sol-Ark (and I 
can't find many!) is that the GEN terminal can only handle 1 of the 
following 3: Generator, AC Coupling, or Smart Load.  So if you want both 
a generator and AC coupling you have to either do a separate transfer 
switch for the GEN and not run it through the inverters - or you have to 
go with their internal DC MPPTif you do want the GEN to charge the 
batteries (unless you are off-grid totally and have no Grid in which 
case you might be able to run the Generator into Grid?  not sure about 
that - don't quote me!).


Anyone else with any downsides?

Best,

Jeff



Jason Szumlanski wrote on 9/10/20 4:44 AM:
There is a huge distinction in a hybrid inverter that integrates MPPT 
charge control. Eliminating all of the extraneous hardware and circuit 
protection associated with charge controllers is very appealing. The 
500V input limit is also a game-changer in terms of wire size. I'm 
very interested in this approach.


On the flip size, an AC Coupled approach is also appealing in a lot of 
circumstances. Since Sol-Ark supports that, too, it's hard to find 
downsides other than their infancy in the industry.


And for what it's worth, my experience with SMA tech support recently 
has been abysmal. Long hold times and getting bounced around departments.


Jason Szumlanski

*

*


On Wed, Sep 9, 2020 at 9:50 PM Mark Frye > wrote:


The most important thing here is that no one is standing up to
sing the praises of either SMA or Outback.

I myself have sent about 2 hours on hold over 2 days trying to get
an issue addressed by SMA.

Re: Sol-Arc I would pay a lot extra or take some not so good
aspect in exchange for good technical support.

On 9/9/2020 1:12 PM, Jason Szumlanski wrote:

Any tips on combining AC output from these units when stacking
several of them? What bus/OCPD system are you using? Same
question for generator/grid input.

The solar MPPT inputs appear to be dead simple.

Jason Szumlanski







*

*


On Tue, Sep 8, 2020 at 10:45 PM MiJo Nels
mailto:spaceshipnels...@gmail.com>>
wrote:

we've found SolArk to be SOLID!! .. And yes 8 inv yield about
96kW, with a TON of surge capabilities..

Joe Nelson

Project Manager C-46/C-10
Sustainable Energy Group Inc., A California Corporation

CSL# 868816
www.SustainableEnergyGroup.com


530-273-4422 (Office)

530-217-8385 (Cell)



   



*From:* RE-wrenches
mailto:re-wrenches-boun...@lists.re-wrenches.org>> on behalf
of pgir...@mindspring.com 
mailto:pgir...@mindspring.com>>
*Sent:* Tuesday, September 8, 2020 1:24:03 PM
*To:* 'RE-wrenches' mailto:re-wrenches@lists.re-wrenches.org>>
*Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or
other?

I also suggest the Sol-Ark 12’s. Extremely efficient, simple
to program, does a wonderful job in either ac coupling, stand
alone or pure off grid and terrific customer support.

Peter Giroux

ASAE

*From:*RE-wrenches mailto:re-wrenches-boun...@lists.re-wrenches.org>> *On
Behalf Of *Bryan Norkunas
*Sent:* Tuesday, September 8, 2020 1:50 PM
*To:* 'RE-wrenches' mailto:re-wrenches@lists.re-wrenches.org>>
*Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or
other?

Sol-Arks would be possible, you can link 8 inverters.

*Bryan *

*PV-Cables*

*From:*RE-wrenches
[mailto:re-wrenches-boun...@lists.re-wrenches.org] *On Behalf
Of *Chris Schaefer
*Sent:* Tuesday, September 8, 2020 10:40 AM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or
other?

I'd suggest giving the crew at Sol-Ark a quick call @
972-575-8875 with their 12kw unit. Not sure what their max
number of inverters are.

Christopher

On Tue, Sep 8, 2020 at 1:14 PM Kienan Maxfield
mailto:maxfieldso...@hotmail.com>> wrote:

Hey all, I'm designing a microgrid sized off-grid system
for somebody, and I'm just wondering if anyone knows of
any issues with the following designs...

The client says he needs 70 kW. His load data looks
pretty solid, so I'm sticking to using that number as a
minimum, at least during the initial proposal stage. I
only know of two possible equipment options for this size
range...

 

Re: [RE-wrenches] Microgrid... Outback or SMA or other?

[Jeff Clearwater]

Yea I'm wondering the easiest way to get a 125 AMP Midnite Inverter 
Bypass assembly in a simple box for 2 Sol-Arks.  Midnite would be the 
perfect candidate for a simple support box (e-panel style) for Stacked 
Sol-Arks.


Any ideas?

Thanks,

Jeff

Dave Angelini Offgrid Solar wrote on 9/10/20 9:37 AM:


In an all in one, the good parts are balanced,  sometimes,  by a small 
failure making the all in one useless. Only a complete spare will save 
the day, or night...Also wonder about real world surge capacity on 1 
hp pumps and big air compressors.


I am glad to hear that they will be making this in Texas, rather than 
currently only in China. Anyone have more on this please?


AC bypass switching is a must for SolArk. They need a PDP or some way 
to make this easier. The dual mppts are perfect for virtual tracking. 
I begged for a dual mppt on the new Schneider high voltage 100a mppt :(


I wish them good luck and take back most of my concerns. Hope they can 
make it!


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


On Thu, 10 Sep 2020 07:44:36 -0400, Jason Szumlanski 
 wrote:


There is a huge distinction in a hybrid inverter that integrates MPPT 
charge control. Eliminating all of the extraneous hardware and 
circuit protection associated with charge controllers is very 
appealing. The 500V input limit is also a game-changer in terms of 
wire size. I'm very interested in this approach.
On the flip size, an AC Coupled approach is also appealing in a lot 
of circumstances. Since Sol-Ark supports that, too, it's hard to find 
downsides other than their infancy in the industry.
And for what it's worth, my experience with SMA tech support recently 
has been abysmal. Long hold times and getting bounced around departments.

Jason Szumlanski

On Wed, Sep 9, 2020 at 9:50 PM Mark Frye > wrote:


The most important thing here is that no one is standing up to
sing the praises of either SMA or Outback.

I myself have sent about 2 hours on hold over 2 days trying to
get an issue addressed by SMA.

Re: Sol-Arc I would pay a lot extra or take some not so good
aspect in exchange for good technical support.

On 9/9/2020 1:12 PM, Jason Szumlanski wrote:

Any tips on combining AC output from these units when stacking
several of them? What bus/OCPD system are you using? Same
question for generator/grid input.
The solar MPPT inputs appear to be dead simple.
Jason Szumlanski




On Tue, Sep 8, 2020 at 10:45 PM MiJo Nels
mailto:spaceshipnels...@gmail.com>>
wrote:

we've found SolArk to be SOLID!! .. And yes 8 inv yield
about 96kW, with a TON of surge capabilities..
Joe Nelson
Project Manager C-46/C-10
Sustainable Energy Group Inc., A California Corporation
CSL# 868816
www.SustainableEnergyGroup.com


530-273-4422 (Office)
530-217-8385 (Cell)

   

*From:* RE-wrenches
mailto:re-wrenches-boun...@lists.re-wrenches.org>> on
behalf of pgir...@mindspring.com
 mailto:pgir...@mindspring.com>>
*Sent:* Tuesday, September 8, 2020 1:24:03 PM
*To:* 'RE-wrenches' mailto:re-wrenches@lists.re-wrenches.org>>
*Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or
other?

I also suggest the Sol-Ark 12's. Extremely efficient, simple
to program, does a wonderful job in either ac coupling,
stand alone or pure off grid and terrific customer support.

Peter Giroux

ASAE

*From:*RE-wrenches
mailto:re-wrenches-boun...@lists.re-wrenches.org>> *On
Behalf Of *Bryan Norkunas
*Sent:* Tuesday, September 8, 2020 1:50 PM
*To:* 'RE-wrenches' mailto:re-wrenches@lists.re-wrenches.org>>
*Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or
other?

Sol-Arks would be possible, you can link 8 inverters.

*Bryan *

*PV-Cables*

*From:*RE-wrenches
[mailto:re-wrenches-boun...@lists.re-wrenches.org] *On
Behalf Of *Chris Schaefer
*Sent:* Tuesday, September 8, 2020 10:40 AM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or
other?

I'd suggest giving the crew at Sol-Ark a quick call @
972-575-8875 with their 12kw unit. Not sure what their max
number of inverters are.

Christopher

On Tue, Sep 8, 2020 at 1:14 PM Kienan Maxfield

Re: [RE-wrenches] California SGIP Program requirement for 10 year service warranty and maintenance contract

[Vic Guillot]

Thanks Philip this is very helpful news.
Vic

Vic Guillot
Sol Sierra, Inc.
209.795.3554 office
209.768.3560 mobile/text



On Thu, Sep 10, 2020 at 11:02 AM Philip Boutelle 
wrote:

> Hi Vic,
>
> I had an SGIP application approved with the following language:
>
>
> Contractor provides a 10-year service workmanship warranty covering the
> battery, inverter, and installation, and references Attachment A,
> *Battery **Limited Warranty*, a 10-year manufacturer warranty for the
> battery
>
>
> I also included a copy of the referenced battery manufacturer warranty
> with the contract/application documentation.
>
> --
>
> *Phil Boutelle,* *PE, CEM, NABCEP Emeritus* |   Energy Engineer
> philboute...@gmail.com   |   M (831) 359-5268
>
> On Thu, Sep 10, 2020 at 10:17 AM Vic Guillot  wrote:
>
>> Hi Wrenches,
>> Does anyone have a good 10 year service warranty clause to draw from in
>> the sgip equity resilience program application? Not sure how to find the
>> best verbage for this. It is referenced on page 61 of the 2020 sgip
>> handbook.
>> Thanks!
>> Vic Guillot
>>
>> Vic Guillot
>> Sol Sierra, Inc.
>> 209.795.3554 office
>> 209.768.3560 mobile/text
>>
>> ___
>> 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
>>
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>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>>
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>> www.re-wrenches.org/etiquette.htm
>>
>> Check out or update participant bios:
>> www.members.re-wrenches.org
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>
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>
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Re: [RE-wrenches] California SGIP Program requirement for 10 year service warranty and maintenance contract

[Philip Boutelle]

Hi Vic,

I had an SGIP application approved with the following language:


Contractor provides a 10-year service workmanship warranty covering the
battery, inverter, and installation, and references Attachment A,
*Battery **Limited
Warranty*, a 10-year manufacturer warranty for the battery


I also included a copy of the referenced battery manufacturer warranty with
the contract/application documentation.

--

*Phil Boutelle,* *PE, CEM, NABCEP Emeritus* |   Energy Engineer
philboute...@gmail.com   |   M (831) 359-5268

On Thu, Sep 10, 2020 at 10:17 AM Vic Guillot  wrote:

> Hi Wrenches,
> Does anyone have a good 10 year service warranty clause to draw from in
> the sgip equity resilience program application? Not sure how to find the
> best verbage for this. It is referenced on page 61 of the 2020 sgip
> handbook.
> Thanks!
> Vic Guillot
>
> Vic Guillot
> Sol Sierra, Inc.
> 209.795.3554 office
> 209.768.3560 mobile/text
>
> ___
> 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://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> www.members.re-wrenches.org
>
>
___
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[RE-wrenches] California SGIP Program requirement for 10 year service warranty and maintenance contract

[Vic Guillot]

Hi Wrenches,
Does anyone have a good 10 year service warranty clause to draw from in the
sgip equity resilience program application? Not sure how to find the best
verbage for this. It is referenced on page 61 of the 2020 sgip handbook.
Thanks!
Vic Guillot

Vic Guillot
Sol Sierra, Inc.
209.795.3554 office
209.768.3560 mobile/text
___
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Re: [RE-wrenches] Microgrid... Outback or SMA or other?

[Dave Angelini Offgrid Solar]

In an all in one, the good parts are balanced, sometimes, by a small
failure making the all in one useless. Only a complete spare will save the
day, or night...Also wonder about real world surge capacity on 1 hp pumps
and big air compressors. 

I am glad to hear that they will be making this
in Texas, rather than currently only in China. Anyone have more on this
please? 

AC bypass switching is a must for SolArk. They need a PDP or some
way to make this easier. The dual mppts are perfect for virtual tracking. I
begged for a dual mppt on the new Schneider high voltage 100a mppt :( 

I
wish them good luck and take back most of my concerns. Hope they can make
it!   

Dave Angelini Offgrid Solar
"we go where powerlines
don't"
http://members.sti.net/offgridsolar/ [1]
e-mail offgridso...@sti.net
[2]
text 209 813 0060

On Thu, 10 Sep 2020 07:44:36 -0400, Jason Szumlanski
wrote:  There is a huge distinction in a hybrid inverter that
integrates MPPT charge control. Eliminating all of the extraneous hardware
and circuit protection associated with charge controllers is very
appealing. The 500V input limit is also a game-changer in terms of wire
size. I'm very interested in this approach.   On the flip size, an AC
Coupled approach is also appealing in a lot of circumstances. Since Sol-Ark
supports that, too, it's hard to find downsides other than their infancy in
the industry.   And for what it's worth, my experience with SMA tech
support recently has been abysmal. Long hold times and getting bounced
around departments.   Jason Szumlanski  
  On Wed, Sep
9, 2020 at 9:50 PM Mark Frye  wrote:   

The most important thing here is
that no one is standing up to sing the praises of either SMA or Outback.


I myself have sent about 2 hours on hold over 2 days trying to get an
issue addressed by SMA. 

Re: Sol-Arc I would pay a lot extra or take some
not so good aspect in exchange for good technical support. On 9/9/2020 1:12
PM, Jason Szumlanski wrote:Any tips on combining AC output from these
units when stacking several of them? What bus/OCPD system are you using?
Same question for generator/grid input.The solar MPPT inputs appear to
be dead simple.   Jason Szumlanski

  On Tue, Sep 8, 2020 at
10:45 PM MiJo Nels  wrote:   we've found SolArk to be SOLID!! .. And yes 8
inv yield about 96kW, with a TON of surge capabilities.. 
   Joe Nelson
 
Project Manager C-46/C-10 Sustainable Energy Group Inc., A California
Corporation
  CSL# 868816 www.SustainableEnergyGroup.com [5] 530-273-4422
(Office)
  530-217-8385 (Cell)
  
     

-

FROM: RE-wrenches  on behalf of pgir...@mindspring.com [7] 
 SENT: Tuesday,
September 8, 2020 1:24:03 PM
 TO: 'RE-wrenches' 
 SUBJECT: Re:
[RE-wrenches] Microgrid... Outback or SMA or other?  

I also suggest
the Sol-Ark 12's. Extremely efficient, simple to program, does a wonderful
job in either ac coupling, stand alone or pure off grid and terrific
customer support. 

Peter Giroux 

ASAE 

FROM: RE-wrenches  ON BEHALF OF
Bryan Norkunas
 SENT: Tuesday, September 8, 2020 1:50 PM
 TO: 'RE-wrenches'

 SUBJECT: Re: [RE-wrenches] Microgrid... Outback or SMA or other?  


Sol-Arks would be possible, you can link 8 inverters. 

BRYAN 


PV-CABLES 

FROM: RE-wrenches
[mailto:re-wrenches-boun...@lists.re-wrenches.org [12]] ON BEHALF OF Chris
Schaefer
 SENT: Tuesday, September 8, 2020 10:40 AM
 TO: RE-wrenches

SUBJECT: Re: [RE-wrenches] Microgrid... Outback or SMA or other? 

I'd
suggest giving the crew at Sol-Ark a quick call @ 972-575-8875 with their
12kw unit. Not sure what their max number of inverters are.  

Christopher 


On Tue, Sep 8, 2020 at 1:14 PM Kienan Maxfield  wrote: 

Hey all,
I'm designing a microgrid sized off-grid system for somebody, and I'm just
wondering if anyone knows of any issues with the following designs...   


The client says he needs 70 kW. His load data looks pretty solid, so I'm
sticking to using that number as a minimum, at least during the initial
proposal stage. I only know of two possible equipment options for this size
range...   

* I think I can use up to 10 Outback Radians, for up to an
80 kW system. Are there any bugs or problems with using this many inverters
on one hub? I know I've read about issues with selling to the grid, but
that's not an issue, this is off-grid.
* I know that the SMA cluster box
with sunny islands can allow for up to a 72 kW system. Do you know of any
bugs or problems with this system?

Are there any other options that anyone
would suggest? Schneider's website says they can only do up to 61 kW, and
Victron can only do up to 60 kW.   

I know that the Outback system would
yield a 240/120 Split-Phase system and that the SMA would yield a 208/120
3Ø system, but this doesn't really matter either way for this job.   


Thanks so much,   

Kienan   

MAXFIELD SOLAR  


maxfieldso...@hotmail.com [14]

(801) 631-5584 (CELL)   

Re: [RE-wrenches] Microgrid... Outback or SMA or other?

[penobscotsolar]

We've had great luck using the Tigo (and SMA) optimizers with SolArk to
conform to NEC2017 and CEC2018.


> There is a huge distinction in a hybrid inverter that integrates MPPT
> charge control. Eliminating all of the extraneous hardware and circuit
> protection associated with charge controllers is very appealing. The 500V
> input limit is also a game-changer in terms of wire size. I'm very
> interested in this approach.
>
> On the flip size, an AC Coupled approach is also appealing in a lot of
> circumstances. Since Sol-Ark supports that, too, it's hard to find
> downsides other than their infancy in the industry.
>
> And for what it's worth, my experience with SMA tech support recently has
> been abysmal. Long hold times and getting bounced around departments.
>
> Jason Szumlanski
>
>
>
> On Wed, Sep 9, 2020 at 9:50 PM Mark Frye  wrote:
>
>> The most important thing here is that no one is standing up to sing the
>> praises of either SMA or Outback.
>>
>> I myself have sent about 2 hours on hold over 2 days trying to get an
>> issue addressed by SMA.
>>
>> Re: Sol-Arc I would pay a lot extra or take some not so good aspect in
>> exchange for good technical support.
>> On 9/9/2020 1:12 PM, Jason Szumlanski wrote:
>>
>> Any tips on combining AC output from these units when stacking several
>> of
>> them? What bus/OCPD system are you using? Same question for
>> generator/grid
>> input.
>>
>> The solar MPPT inputs appear to be dead simple.
>>
>> Jason Szumlanski
>>
>>
>>
>>
>>
>>
>>
>>
>> On Tue, Sep 8, 2020 at 10:45 PM MiJo Nels 
>> wrote:
>>
>>> we've found SolArk to be SOLID!! .. And yes 8 inv yield about 96kW,
>>> with
>>> a TON of surge capabilities..
>>>
>>> Joe Nelson
>>>
>>> Project Manager C-46/C-10
>>> Sustainable Energy Group Inc., A California Corporation
>>>
>>> CSL# 868816
>>> www.SustainableEnergyGroup.com
>>> 
>>> 530-273-4422 (Office)
>>>
>>> 530-217-8385 (Cell)
>>>
>>> 
>>>
>>>    
>>>
>>>
>>> --
>>> *From:* RE-wrenches  on
>>> behalf of pgir...@mindspring.com 
>>> *Sent:* Tuesday, September 8, 2020 1:24:03 PM
>>> *To:* 'RE-wrenches' 
>>> *Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or other?
>>>
>>>
>>> I also suggest the Sol-Ark 12’s. Extremely efficient, simple to
>>> program,
>>> does a wonderful job in either ac coupling, stand alone or pure off
>>> grid
>>> and terrific customer support.
>>>
>>>
>>>
>>> Peter Giroux
>>>
>>> ASAE
>>>
>>>
>>>
>>> *From:* RE-wrenches  *On
>>> Behalf Of *Bryan Norkunas
>>> *Sent:* Tuesday, September 8, 2020 1:50 PM
>>> *To:* 'RE-wrenches' 
>>> *Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or other?
>>>
>>>
>>>
>>> Sol-Arks would be possible, you can link 8 inverters.
>>>
>>>
>>>
>>> *Bryan *
>>>
>>> *PV-Cables*
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org
>>> ] *On Behalf Of *Chris
>>> Schaefer
>>> *Sent:* Tuesday, September 8, 2020 10:40 AM
>>> *To:* RE-wrenches
>>> *Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or other?
>>>
>>>
>>>
>>> I'd suggest giving the crew at Sol-Ark a quick call @ 972-575-8875 with
>>> their 12kw unit. Not sure what their max number of inverters are.
>>>
>>>
>>>
>>> Christopher
>>>
>>>
>>>
>>> On Tue, Sep 8, 2020 at 1:14 PM Kienan Maxfield
>>> 
>>> wrote:
>>>
>>> Hey all, I'm designing a microgrid sized off-grid system for somebody,
>>> and I'm just wondering if anyone knows of any issues with the following
>>> designs...
>>>
>>>
>>>
>>> The client says he needs 70 kW. His load data looks pretty solid, so
>>> I'm
>>> sticking to using that number as a minimum, at least during the initial
>>> proposal stage. I only know of two possible equipment options for this
>>> size
>>> range...
>>>
>>>
>>>
>>>1. I think I can use up to 10 Outback Radians, for up to an 80 kW
>>>system. Are there any bugs or problems with using this many
>>> inverters on
>>>one hub? I know I've read about issues with selling to the grid, but
>>> that's
>>>not an issue, this is off-grid.
>>>2. I know that the SMA cluster box with sunny islands can allow for
>>>up to a 72 kW system. Do you know of any bugs or problems with this
>>> system?
>>>
>>>
>>>
>>>
>>>
>>> Are there any other options that anyone would suggest? Schneider's
>>> website says they can only do up to 61 kW, and Victron can only do up
>>> to 60
>>> kW.
>>>
>>>
>>>
>>>
>>>
>>> I know that the Outback system would yield a 240/120 Split-Phase system
>>> and that the SMA would yield a 208/120 3Ø system, but this doesn't
>>> really
>>> matter either way for this job.
>>>
>>>
>>>
>>> Thanks so much,
>>>
>>> Kienan
>>>
>>>
>>>
>>>
>>>
>>> *Maxfield Solar*
>>>
>>> *maxfieldso...@hotmail.com* 
>>>
>>> *(801) 631-5584 (Cell)*
>>>
>>> ___
>>> List 

Re: [RE-wrenches] Microgrid... Outback or SMA or other?

[Jason Szumlanski]

There is a huge distinction in a hybrid inverter that integrates MPPT
charge control. Eliminating all of the extraneous hardware and circuit
protection associated with charge controllers is very appealing. The 500V
input limit is also a game-changer in terms of wire size. I'm very
interested in this approach.

On the flip size, an AC Coupled approach is also appealing in a lot of
circumstances. Since Sol-Ark supports that, too, it's hard to find
downsides other than their infancy in the industry.

And for what it's worth, my experience with SMA tech support recently has
been abysmal. Long hold times and getting bounced around departments.

Jason Szumlanski



On Wed, Sep 9, 2020 at 9:50 PM Mark Frye  wrote:

> The most important thing here is that no one is standing up to sing the
> praises of either SMA or Outback.
>
> I myself have sent about 2 hours on hold over 2 days trying to get an
> issue addressed by SMA.
>
> Re: Sol-Arc I would pay a lot extra or take some not so good aspect in
> exchange for good technical support.
> On 9/9/2020 1:12 PM, Jason Szumlanski wrote:
>
> Any tips on combining AC output from these units when stacking several of
> them? What bus/OCPD system are you using? Same question for generator/grid
> input.
>
> The solar MPPT inputs appear to be dead simple.
>
> Jason Szumlanski
>
>
>
>
>
>
>
>
> On Tue, Sep 8, 2020 at 10:45 PM MiJo Nels 
> wrote:
>
>> we've found SolArk to be SOLID!! .. And yes 8 inv yield about 96kW, with
>> a TON of surge capabilities..
>>
>> Joe Nelson
>>
>> Project Manager C-46/C-10
>> Sustainable Energy Group Inc., A California Corporation
>>
>> CSL# 868816
>> www.SustainableEnergyGroup.com
>> 
>> 530-273-4422 (Office)
>>
>> 530-217-8385 (Cell)
>>
>> 
>>
>>    
>>
>>
>> --
>> *From:* RE-wrenches  on
>> behalf of pgir...@mindspring.com 
>> *Sent:* Tuesday, September 8, 2020 1:24:03 PM
>> *To:* 'RE-wrenches' 
>> *Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or other?
>>
>>
>> I also suggest the Sol-Ark 12’s. Extremely efficient, simple to program,
>> does a wonderful job in either ac coupling, stand alone or pure off grid
>> and terrific customer support.
>>
>>
>>
>> Peter Giroux
>>
>> ASAE
>>
>>
>>
>> *From:* RE-wrenches  *On
>> Behalf Of *Bryan Norkunas
>> *Sent:* Tuesday, September 8, 2020 1:50 PM
>> *To:* 'RE-wrenches' 
>> *Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or other?
>>
>>
>>
>> Sol-Arks would be possible, you can link 8 inverters.
>>
>>
>>
>> *Bryan *
>>
>> *PV-Cables*
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org
>> ] *On Behalf Of *Chris
>> Schaefer
>> *Sent:* Tuesday, September 8, 2020 10:40 AM
>> *To:* RE-wrenches
>> *Subject:* Re: [RE-wrenches] Microgrid... Outback or SMA or other?
>>
>>
>>
>> I'd suggest giving the crew at Sol-Ark a quick call @ 972-575-8875 with
>> their 12kw unit. Not sure what their max number of inverters are.
>>
>>
>>
>> Christopher
>>
>>
>>
>> On Tue, Sep 8, 2020 at 1:14 PM Kienan Maxfield 
>> wrote:
>>
>> Hey all, I'm designing a microgrid sized off-grid system for somebody,
>> and I'm just wondering if anyone knows of any issues with the following
>> designs...
>>
>>
>>
>> The client says he needs 70 kW. His load data looks pretty solid, so I'm
>> sticking to using that number as a minimum, at least during the initial
>> proposal stage. I only know of two possible equipment options for this size
>> range...
>>
>>
>>
>>1. I think I can use up to 10 Outback Radians, for up to an 80 kW
>>system. Are there any bugs or problems with using this many inverters on
>>one hub? I know I've read about issues with selling to the grid, but 
>> that's
>>not an issue, this is off-grid.
>>2. I know that the SMA cluster box with sunny islands can allow for
>>up to a 72 kW system. Do you know of any bugs or problems with this 
>> system?
>>
>>
>>
>>
>>
>> Are there any other options that anyone would suggest? Schneider's
>> website says they can only do up to 61 kW, and Victron can only do up to 60
>> kW.
>>
>>
>>
>>
>>
>> I know that the Outback system would yield a 240/120 Split-Phase system
>> and that the SMA would yield a 208/120 3Ø system, but this doesn't really
>> matter either way for this job.
>>
>>
>>
>> Thanks so much,
>>
>> Kienan
>>
>>
>>
>>
>>
>> *Maxfield Solar*
>>
>> *maxfieldso...@hotmail.com* 
>>
>> *(801) 631-5584 (Cell)*
>>
>> ___
>> 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
>> 

Re: [RE-wrenches] Microgrid... Outback or SMA or other?

[penobscotsolar]

Hey Bill,
   They're still small enough that, at least so far, there is no hold music!
And we combine ac outputs with an "ac combiner panel" simply a single
phase or three phase panel, with each inverter feeding a breaker in that
panel and ensuring that we use either a main breaker that can be back fed
or a panel with feed through lugs. It is simple and safe and code
compliant.


Daryl





> OK, I'll bite.  I use SMA and Outback almost exclusively.  SMA for
> grid-tie so I can't vouch for SI for Off-grid and I don't seem to have
> the same wait problem with SMA, its usually 10-20 minutes.
>
>              And Outback well they're not perfect but I've been
> using there stuff since day 1 (thanks Bob-O), still using FX3524 ser#
> 0007 and been installing since they were Trace. Service?  well, let's
> just say it varies but I've been willing to put up with it.  The WORST
> part of of Outback service calls is the music they pipe in on
> 'hold'...its enough to make you hang up.
>
>              Sol-ark, the new kid on the block sounds slick and I'm
> genuinely tempted, specs look great..wonder what their 'hold' music is
> like?
>
> Bill
>
> Feather River Solar Electric
> Bill Battagin, Owner
> 4291 Nelson St.
> Taylorsville, CA 95983
> 530.284.7849
> CA Lic 874049
> www.frenergy.net
>
> On 9/9/2020 6:49 PM, Mark Frye wrote:
>>
>> The most important thing here is that no one is standing up to sing
>> the praises of either SMA or Outback.
>>
>> I myself have sent about 2 hours on hold over 2 days trying to get an
>> issue addressed by SMA.
>>
>> Re: Sol-Arc I would pay a lot extra or take some not so good aspect in
>> exchange for good technical support.
>>
>> On 9/9/2020 1:12 PM, Jason Szumlanski wrote:
>>> Any tips on combining AC output from these units when stacking
>>> several of them? What bus/OCPD system are you using? Same question
>>> for generator/grid input.
>>>
>>> The solar MPPT inputs appear to be dead simple.
>>>
>>> Jason Szumlanski
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>
>
>
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Re: [RE-wrenches] Microgrid... Outback or SMA or other?

[Mac Lewis]

The largest we've done is a 4 stack of 8k Radians and a 6 stack of Sunny
Islands with the Mutlicluster box.  They both have worked fine and there
are advantages to each approach.

An advantage to a multicluster approach is that you can have smaller and
segmented battery banks that don't require custom DC bussing.  Each cluster
master manages the battery bank.  The solar input can go straight into the
multicluster box since AC coupling works very well with SMA equipment.

Things get very busy with a Radian system quickly.  We had to use a custom
bussing system to combine the battery banks at around 1500A and miles of
4/0 cable to feed more bussing for the solar input and Radian connection.

Regarding getting the AC in and out of the Radian, we opted to use
dedicated panelboards for both the input and the output with double pole
60A breakers feeding in and out of each Radian.  It's also a good idea to
have a bypass switch upstream of the AC input panelboard that can bypass
the system if needed.

Both of these systems worked well but took a lot of planning for the
spatial layout and took a lot of wall space, much more than we initially
thought.

Good Luck and let us know which approach you take.

On Wed, Sep 9, 2020 at 10:20 PM frenergy  wrote:

> OK, I'll bite.  I use SMA and Outback almost exclusively.  SMA for
> grid-tie so I can't vouch for SI for Off-grid and I don't seem to have the
> same wait problem with SMA, its usually 10-20 minutes.
>
> And Outback well they're not perfect but I've been using
> there stuff since day 1 (thanks Bob-O), still using FX3524 ser# 0007 and
> been installing since they were Trace.  Service?  well, let's just say it
> varies but I've been willing to put up with it.  The WORST part of of
> Outback service calls is the music they pipe in on 'hold'...its enough to
> make you hang up.
>
> Sol-ark, the new kid on the block sounds slick and I'm
> genuinely tempted, specs look great..wonder what their 'hold' music is like?
>
> Bill
>
> Feather River Solar Electric
> Bill Battagin, Owner
> 4291 Nelson St.
> Taylorsville, CA 95983
> 530.284.7849
> CA Lic 874049www.frenergy.net
>
> On 9/9/2020 6:49 PM, Mark Frye wrote:
>
> The most important thing here is that no one is standing up to sing the
> praises of either SMA or Outback.
>
> I myself have sent about 2 hours on hold over 2 days trying to get an
> issue addressed by SMA.
>
> Re: Sol-Arc I would pay a lot extra or take some not so good aspect in
> exchange for good technical support.
> On 9/9/2020 1:12 PM, Jason Szumlanski wrote:
>
> Any tips on combining AC output from these units when stacking several of
> them? What bus/OCPD system are you using? Same question for generator/grid
> input.
>
> The solar MPPT inputs appear to be dead simple.
>
> Jason Szumlanski
>
>
>
>
>
>
>
>
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-- 



Mac Lewis

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