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

Jeff Clearwater jeffc at villagepowerdesign.com
Thu Sep 10 14:12:31 EDT 2020


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 offgridsolar at sti.net 
> <mailto:offgridsolar at sti.net> text 209 813 0060*
>
> On Thu, 10 Sep 2020 07:44:36 -0400, Jason Szumlanski 
> <jason at floridasolardesigngroup.com> 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 <markf at berkeleysolar.com 
>> <mailto:markf at berkeleysolar.com>> 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
>>>     <spaceshipnelson1 at gmail.com <mailto:spaceshipnelson1 at 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
>>>         <https://mailtrack.io/trace/link/8f0e320b52948f22a9ae9682bd3b5e9dc8d6c68f?url=http%3A%2F%2Fwww.SustainableEnergyGroup.com&userId=1613865&signature=e7d246f94af9a065>
>>>         530-273-4422 (Office)
>>>         530-217-8385 (Cell)
>>>>>>            
>>>         ------------------------------------------------------------------------
>>>         *From:* RE-wrenches
>>>         <re-wrenches-bounces at lists.re-wrenches.org
>>>         <mailto:re-wrenches-bounces at lists.re-wrenches.org>> on
>>>         behalf of pgiroux at mindspring.com
>>>         <mailto:pgiroux at mindspring.com> <pgiroux at mindspring.com
>>>         <mailto:pgiroux at mindspring.com>>
>>>         *Sent:* Tuesday, September 8, 2020 1:24:03 PM
>>>         *To:* 'RE-wrenches' <re-wrenches at lists.re-wrenches.org
>>>         <mailto:re-wrenches at 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
>>>         <re-wrenches-bounces at lists.re-wrenches.org
>>>         <mailto:re-wrenches-bounces at lists.re-wrenches.org>> *On
>>>         Behalf Of *Bryan Norkunas
>>>         *Sent:* Tuesday, September 8, 2020 1:50 PM
>>>         *To:* 'RE-wrenches' <re-wrenches at lists.re-wrenches.org
>>>         <mailto:re-wrenches at 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-bounces at 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
>>>         <maxfieldsolar at hotmail.com
>>>         <mailto:maxfieldsolar at 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...
>>>
>>>              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*
>>>
>>>             *maxfieldsolar at hotmail.com*
>>>             <mailto:maxfieldsolar at hotmail.com>
>>>
>>>             *(801) 631-5584 (Cell)*
>>>
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>>>
>>>         Chris Schaefer's
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>>>         ~ E-mail: //chris at solarandwindfx.com
>>>         <mailto:chris at solarandwindfx.com>/
>>>
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-- 
~~~~~~~~~~~
Jeff Clearwater
Village Power Design
linkedin <https://www.linkedin.com/in/jeff-clearwater-0622a312/>
www.villagepowerdesign.com <http://www.villagepowerdesign.com>
cell - 413-559-9763
~~~~~~~~~~~~~~~~~~~~~~~
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