[RE-wrenches] Back-up generator/inverter shut-down relay

[Benn Kilburn]

A couple of wrenches have suggested the Generac SMM (link in email below) but a call to generac resulted in them saying they only test it with their own generators and cannot say if it will work properly and will not offer support if connected with generators other than Generac. 

Have any of you used this SMM with success with gens other than Generac?

And to answer a few other suggestions ...the reason we need something like this is the layout of all the electrical equipment. 
At the end of the driveway is the pole with the transformer and meter/splitter combo. 
15' away is the shed housing the generator and ATS. Then there is the underground feed to the house which if trenched would be about 350' to the house where the main panelboard is located along with the 2 SolarEdge inverters and the PV system. 
So we cannot reasonably interconnect btwn the ATS and the meter, hence the need for a way to shut down the inverters when the generator is running. 

The SMM that was suggested sounds great, but I don't want our client to be a guinea pig to see if it will work properly with a non-Generac generator. 

Thanks,

Benn Kilburn
SkyFire Energy Inc. 
780-906-7807

> On Sep 8, 2016, at 6:45 PM, Matthew Sherald <matt at getpimby.com> wrote:
> 
> Generac offers a Smart Management Module. 
> 
> http://gens.lccdn.com/GeneracCorporate/media/Library/content/all-products/transfer-switches/residential-transfer-switches/0L1500-B-SMM-Module.pdf
> 
> I used one of these at a grid-tie job where the customer was simultaneously having a Generac unit installed.  The Generac installer turned me on to the device and it seemed to do the trick.  It was a similar situation where the PV and GT inverter were at an outbuilding far removed from the main panel at the house.
> 
> 
>> On Thu, Sep 8, 2016 at 1:00 PM, Benn Kilburn <benn at skyfireenergy.com> wrote:
>> Wrenches,
>> We are installing 2 SolarEdge SE7600A-US inverters in a grid-tied system that has a 15kw back-up generator on an auto transfer switch.
>> 
>> The generator is located in a shed about 300' or more away and the feeders to the house are underground.
>> Inverters are located in the house basement mechanial room along with the house electrical panelboard.
>> 
>> We are looking for relay options to shut down the inverters when there is a power interruption, before the generator kicks in.  This could be a manual reset.
>> 
>> What are some options you have seen/used for something like this?
>> 
>> Thanks,
>> 
>> Benn Kilburn 
>> CSA Certified Solar Photovoltaic Systems Electrician, SkyFire Energy Inc
>> 14515 – 121A Ave NW | Edmonton, AB | T5L 2T2
>> P: 780-474-8992 | F: 888-405-5843 | www.skyfireenergy.com
>>     
>> 
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> 
> -- 
> Matt Sherald
> PIMBY Energy, LLC
> NABCEP Certified Solar PV Installer®
> 304-704-5943
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> www.getpimby.blogspot.com
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