SMA is the name of the German company that produces them. I'm thinking that
they designed them too.
A nice feature with SMA, if you have your WiFi connected to your SMA unit,
you receive an email report and graph of your daily kwh production.
Ray,
N6VR
On Tue, May 28, 2019, 2:26 AM WW3S <ww3s@zoominternet.net> wrote:
> Are Fronius and SMA brand names or design styles?
>
> Sent from my iPad
>
> > On May 28, 2019, at 1:13 AM, <r55stan@gmail.com> <r55stan@gmail.com>
> wrote:
> >
> > The safest option to avoid RFI is to avoid all switching circuitry on
> the roof. This incudes optimizers (which are DC to DC converters) and
> micro inverters (DC to 240 VAC converters). I have a Fronius inverter, and
> I have also heard that SMA inverters are quiet. Watch out for the
> exaggerated claims about the effects of any shadows shutting down the
> entire string. This can't happen due to the bypass diodes on the panels.
> And, you can easily make up any small efficiency disadvantage of a single
> ground inverter system with one or two more panels. My solar power system
> has zero RFI with no ferrites or twisted wires.
> >
> > Randy KQ6RS
> >
> > -----Original Message-----
> > From: RFI <rfi-bounces@contesting.com> On Behalf Of Raymond Benny
> > Sent: Monday, May 27, 2019 9:58 PM
> > To: ny9h@arrl.net
> > Cc: rfi@contesting.com
> > Subject: Re: [RFI] There goes the neighborhood.....
> >
> > I agree with Bill, I have a 6kw SMA inverter and no noise.
> >
> > Not sure what "dual inverter" means. My SMA has 3 legs/inputs enough for
> about 30 panels.
> >
> > Ray,
> > N6VR
> > Near Prescott, AZ
> >
> >
> >
> >> On Mon, May 27, 2019, 6:20 PM Bill Steffey <ny9h@arrl.net> wrote:
> >>
> >> since my SMA standard inverters have NO noise I would test an SMA
> >> optimizer installation//////
> >>
> >> I bet they are also quiet...
> >>
> >>
> >> bill
> >>
> >>
> >>> On 5/27/2019 6:33 PM, Jim Brown wrote:
> >>>> On 5/27/2019 3:13 PM, Gary Johnson wrote:
> >>>> Most incredible thing: He’s willing to have them remove the entire
> >>>> system if they can’t resolve the RFI! But, he wants to know if
> >>>> there exists an RFI-quiet system*with panel optimizers*.
> >>>
> >>> Wow -- buy that guy a case of his favorite single malt!
> >>>
> >>> 73, Jim K9YC
> >>>
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> >>
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> >
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> > http://lists.contesting.com/mailman/listinfo/rfi
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>
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