[RFI] Solar Edge Prototype Optimizer

Hare, Ed, W1RFI w1rfi at arrl.org
Fri Sep 16 17:41:52 EDT 2022

They had one earlier attempt that did not prove successful, so they didn't go into production.  If this makes a substantial improvement, I will probably ask Tony if I can do a site visit to take a look at the results.

A lab could measure it, but they usually do not measure things with full wiring connected to it. The lab will be equipped to measure only the radiated emissions from the unit above 30 MHz and the conducted emissions onto the ac mains below 30 MHz, probably with a single panel with moderately sized wiring attached.  The issue of interference is radiated below 30 MHz, which neither the US nor European standards cover.

Ed, W1RFI/9
From: RFI <rfi-bounces+w1rfi=arrl.org at contesting.com> on behalf of David Eckhardt <davearea51a at gmail.com>
Sent: Friday, September 16, 2022 12:13 PM
To: Tony <73guddx at gmail.com>
Cc: rfi at contesting.com <rfi at contesting.com>
Subject: Re: [RFI] Solar Edge Prototype Optimizer

Since ARRL is working closely with SolarEdge, I'd suggest they have ARRL
evaluate it before cranking up production.  Or, they could pass it through
a accredited lab for an engineering only evaluation.  Engineering
evaluations are offered by most labs at a much reduced cost and no formal

Dave - WØLEV

On Fri, Sep 16, 2022 at 4:44 AM Tony <73guddx at gmail.com> wrote:

> All:
> I just received word from Solar Edge about a prototype Optimizer that's
> supposed to reduce HF interference caused by their solar panel systems.
> It's scheduled to be manufactured in November and the SE engineer I
> spoke with said that my neighbors system would be the perfect candidate
> for the new prototype.
> This will be the 3rd attempt by Solar Edge to try and resolve the
> interference which began in 2016 so any reduction in noise would be a
> welcomed relief.
> Will keep you posted.
> Tony -K2MO
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*Dave - WØLEV*
*Just Let Darwin Work*
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