[TowerTalk] Solar Panel RFI/Microinverters

[J D]

QST had an article and the ham had put up a system with micro-inverters. He
found he needed to take RFI mitigation's on each micro-inverter.

If I recall the article suggested that string inverters were less noisy as
manufacturers could spend a little more on a higher cost string inverter to
improve RFI without increasing their product price too much. But those same
measures applied to each micro would increase their cost quite a bit,
relatively speaking. Also if the end-user had to take RFI mitigation steps,
doing that to a few string inverters was less time consuming than
mitigating dozens of on panel inverters, plus the work would generally be
at ground level vs on the roof.

_JD




On Thu, Jan 19, 2017 at 12:41 AM, Bill Eisinger <Bill at theeisingers.com>
wrote:

> I have an 8 kw PV array with 28 enphase micro- inverters. I have no
> detectable RFI issues.
>
> Sent from my iPhone
>
> > On Jan 18, 2017, at 8:59 PM, Jim Brown <jim at audiosystemsgroup.com>
> wrote:
> >
> >> On Wed,1/18/2017 7:42 PM, Karl Heil wrote:
> >> String is better for a variety of reasons.
> >
> > The question was about RFI. What do you know about that?
> >
> > 73, Jim K9YC
> >
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