[RE-wrenches] SMA and Tigo

[Bill Hoffer]

Matt

I believe that Itek Energy will be shipping either June 1 or July 1  with
Tigo ready modules.   Please contact contact Karl Unterschuetz -
karlU at itekenergy.com about sales.  They are calling for a pre-order since
they are transitioning from their old junctionbox to the Tigo.  Tell him
Bill Hoffer sent ya!  Good solid made in USA module, I have worked on the
product for them and extended testing to include PID and Bankability
testing to confirm warranty.  They are currently expanding into a new
larger plant around 3rd quarter this year.

iTek Energy at 3886 Hammer Drive, Bellingham WA 98226
itekenergy.com

Hope that helps!

Bill

On Mon, May 15, 2017 at 7:38 AM, Matt Partymiller <
matt at solar-energy-solutions.com> wrote:

> Mark,
>
> We have been using Tigo for awhile on select sites.  The standard Tigo
> solution looks pretty identical to the Power+ package.  Overall we like
> the product and like that it now integrates with Sunny Portal. Tigo tech
> support is pretty good to work with though rarely returns calls.  Expect
> you will need to work with them for firmware updates which are not
> automatic.
>
> I am not sure we have encountered a failed Tigo out of the box (at least
> not that we have been able to identify).  We have encountered multiple
> failed Cloud Connects (internet communication device).  At present about 1
> in 10 never work but the good news is they have a new generation coming
> out with Power+.
>
> I would suggest reading Tigo compatibility guidelines closely.  Tigo is
> currently phasing out their 375W model in favor of the 475W model.  The
> 375 is not fully compatible with SMA (false arc faults).  The 475 is
> allegedly compatible though we have yet to use the new product (it just
> hit shores this month).  I don't believe 375 is listed anywhere on the
> unit so differentiating between it and the 475 could be difficult,
> especially since the part number for the 375 is a 4## number.  Make sure
> you don't get any old units through distribution.
>
> The system has a Gateway that wirelessly communicates with each module but
> needs to be hardwired from the roof back through the Cloud Connect device.
>  Three small gauge wires required.  We have been using an outdoor jacketed
> 600V 4-wire cable in conduit with DC conductors.  They say this can cause
> interference for monitoring purposes but I have yet to see it.  Kind of
> obnoxious finding a wire that meets those criteria (voltage, outdoors,
> three wires).
>
> Tigos can clip to module frames.  This eases installation and they seem to
> be pretty secure.  That said, the ideal solution are module-integrated
> Tigos which a number of manufacturers make but which never seem to be
> available in the US.  Trinasmarts for instance.
>
> Matt
> On Mon, May 15, 2017 9:48 am, Mark Frye wrote:
> > I was looking at the SMA web-site and it appears that the solution to
> > address 2017 module level shutdown is basically to incorporated Tigo
> > optimizers.
> >
> > That seems like a big win for Tigo.
> >
> >
> > Has anyone used the Power+ Solution yet?
> >
> >
> > Mark
> >
> >
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> Matthew Partymiller
> Solar Energy Solutions LLC
> (877) 312-7456
> matt at solar-energy-solutions.com
>
>
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-- 
William Hoffer
420 SE Wyers Street
P.O. Box 1823
White Salmon, WA 98672-1823
sunengser at gmail.com <bhoffer at sunergyengineeringservices.com>
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