[RE-wrenches] Off Grid Optimizers

[Michael Morningstar]

You know Murphy? That is Murphy of Murphy’s Law?  He’s gotta just love the idea of AC coupled off-grid systems. The OB, SB, Li system Jay described is going to keep him (Murphy) and the installer very busy at some point. The further away the system is from civilization, the higher the odds of chicanery and headaches. Systems that need backup safety controls seem inherently risky too.



> On Oct 31, 2019, at 11:06 AM, jay <jay.peltz at gmail.com> wrote:
> 
> HI Drake,
> 
> I was just talking with a colleague the other day about a project he did. 
> New Radian, AC coupling, lithium batteries, SB inverters.  Everything is working just as it should with the GT inverters tapering during AC coupling frequency shift mode.
> 
> 
> I would say you are fine, and while I can’t say for sure if the Enphase will work that way, they should as they are all designed to the same parameters rule 21. 
> 
> I always do recommend a aux relay for backup/shutoff  should there be some kind of issue. 
> 
> With the Envoy you’ll be able to see that tapering as well.
> 
> Seems like a good option for your application
> 
> jay
> 
> 
> 
> 
> 
>> On Oct 31, 2019, at 9:49 AM, Drake <drake.chamberlin at redwoodalliance.org> wrote:
>> 
>> Hi Jay,
>> 
>> Between 2160 and 2880 Watts of added array. We will be using a new Radian.
>> 
>> Drake
>> 
>> At 11:49 AM 10/31/2019, you wrote:
>>> How many watts are you adding as ac coupling?
>>> And presuming its an older 8k radian?
>>> 
>>> 
>>> Jay
>>> 
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	Michael Morningstar

     	Morningstar Electric
	PO Box 1494
	Mount Shasta, California 96067
	530-921-0560
	CSLB 949635
 
  

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