[RE-wrenches] Generator and AC coupling on a Sol-Ark

[Jeff Clearwater]

Hi Dave ~

Well this might not be the answer you are looking for but I'd take a 
serious look at the relative hassle of rewiring the array to DC. 
Sol-Ark's shine in DC coupled mode - highly efficient - and then you 
have the generator port open (now not used for AC coupling) available 
for the generator.   Depending on how accessible the MC4s are on the 
array and how easy to run DC wire it might not be that much work - with 
a much superior result.

Best,

Jeff

-- 
~~~~~~~~~~~
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
~~~~~~~~~~~~~~~~~~~~~~~

> Dave Tedeyan <mailto:dave at sungineersolar.com>
> May 3, 2021 at 7:26 AM
> Hi All,
>
> I am planning on using a Sol-Ark for the first time for adding battery 
> backup to an existing system. It is Enphase, so clearly it will be AC 
> coupled, and there is a whole house generator. When I talked to 
> Sol-Ark about it, they recommended putting the generator on a time of 
> use schedule to not allow it to come on during the day so that we 
> don't run into the issue of the solar backfeeding the generator.
>
> I was wondering though if anyone has just used a contactor to cut out 
> the solar when the generator turns on? Something like Outback's 
> GS-AC-Gen-Kit, although in this case I will need something rated for 
> just over 30A. This seems like a better way to allow the generator to 
> run at any time it is needed, especially if it is a gloomy, snowy, 
> winter day.
>
> Cheers,
> Dave
>
> -- 
> *Dave Tedeyan, PE*
> Sungineer Solar*
> *
> 1653 Slaterville Road, Ithaca, NY 14850
> Cell: 607-288-2898
> www.sungineersolar.com <http://www.sungineersolar.com/>
>
>
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