[RFI] Update: Tesla's Response to Solar Panel RFI

[Hare, Ed W1RFI]

And just what would you have lawyers do? Solar Edge is already handing the problems and replacing systems. Tesla is a new player   and that initial letter was written by  their lawyers. You saw the result.  If we take this out of the hands of the engineers who are trying to fix this and to improve future designs, the lawyers will try to stop that.  This is not a case for the lawyers nor for the FCC.  The systems meet the limits and the vast majority  of harmful interference complaints have been or are being resolved.

The verbiage I have typed so far talks about how working together is working.



Ed


________________________________
From: Dale Johnson <dj2001x at comcast.net>
Sent: Sunday, December 22, 2019 6:34 PM
To: Hare, Ed W1RFI <w1rfi at arrl.org>
Cc: rfi at contesting.com <rfi at contesting.com>; jim at audiosystemsgroup.com <jim at audiosystemsgroup.com>
Subject: Re: [RFI] Update: Tesla's Response to Solar Panel RFI

Seems like it should go to the lawyers.  The verbiage I read here is lawyer stuff.  I think it’s all in the hands of lawyers.  NOT technicians.

Anyway good luck with it.

Dale j.



On 22, Dec 2019, at 17:25, Hare, Ed W1RFI <w1rfi at arrl.org> wrote:

JIm,

We are in contact with Solar Edge and Tesla,  the two major players. If  you can summarize what you previously provided, we can make  sure it gets into the hands of the engineers.

Ed



________________________________
From: RFI <rfi-bounces at contesting.com> on behalf of Jim Brown <jim at audiosystemsgroup.com>
Sent: Tuesday, December 17, 2019 2:42 PM
To: rfi at contesting.com <rfi at contesting.com>
Subject: Re: [RFI] Update: Tesla's Response to Solar Panel RFI

On 12/17/2019 10:55 AM, Hare, Ed W1RFI wrote:
> Let me see if I can put this into perspective.

Thanks for your detailed summary of this. I have also contributed to
this matter, consulting with Tefford Reed, the Solar Edge field tech who
was working on K2MO's neighbor's installation. By coincidence, Reed
lived in the SF Bay area, driving distance to me, and we met twice for
lunch to discuss the project.

My contributions were to 1) educate the tech with respect to possible
mechanisms; 2) address installation-related factors unique to it that
could be affecting this particular installation; 3) wind and measure
more than a dozen chokes on several combinations of #31 to be applied to
the rooftop loop of optimizers and make specific recommendations; 4)
advised that the best and most cost effective solution was redesign of
problematic circuitry to minimize the HF noise products. One of those
installation-related factors was that the frame for the panels were
(are?) bonded to earth electrodes on the opposite side of the building
from the mains service, setting up a large loop for noise currents,
which would in turn establish a magnetic field that is strong in the
near field (like next door).

A few months later, I learned from K2MO that Reed had subsequently left
the company, and I have no idea of the extent to which my
recommendations reached anyone beyond him.

73, Jim K9YC
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