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

To: Tony <dxdx@optonline.net>
Subject: Re: [RFI] Update: Tesla's Response to Solar Panel RFI
From: David Eckhardt <davearea51a@gmail.com>
Date: Mon, 16 Dec 2019 22:29:45 +0000
List-post: <mailto:rfi@contesting.com>
Next time I drive through DIA in Denver, I will have Pat (my wife) drive.
I will be armed with an antenna, a laptop, and an AirSpy, or better yet, a
portable spectrum anaylzer.  There is a HUGE solar installation at DIA just
as one enters.  I'll bet it is clean......

Dave - WØLEV

On Mon, Dec 16, 2019 at 10:27 PM David Eckhardt <davearea51a@gmail.com>

> Being terribly facetious:   Let's all fire up our spark transmitters
> connected to the best HF antenna we have.  Would FCC then, act?
> Absolutely!  How is solar much different?  Don't need an old Ford spark
> coil.  The high-energy SCR'ed ignition systems can do wonders when coupled
> toa real antenna.  Again, would FCC act? Absolutely.  How is solar much
> different???
> If the designers (Solar Edge???) would limit the rise time of the
> rectangular waves driving the high power switching in the inverters, the
> problem would "mostly" go away.  A small loss of about 2% might result, but
> RFI would be greatly reduced.   Been ther.....Done that with other
> systems.  The technique works -  Small series inductance with the drive to
> the switching device gate.
> I well remember reading the pages of EE-Times when switchers came along
> and begun to displace linear regulators. They were the best thing to come
> along since sliced bread.  About a year, the readings changed.  OMG!!!!!
> These things produce all kinds of RFI.  That went on for a couple of years
> with may articles in most of thewidely read EE publications addressing how
> to"tame" the RF emissions.  Well, things have gotten much faster and power
> FET'S  have come into design bucket of tools.  The problem is back.  Now
> what do we do.  Pick one hour of one day of the coming year and all us us
> put our spark transmitters 'on the air'??
> Some day, and its a long story, I'll write up the trial instigated by
> Homeland Security in our little farming and bedroom town of Berthoud,
> Colorado, to evaluate realtime the interference potential of BPL.  Not
> 10-minutes of going active, and the FAA was on our case and diverted ALL
> commercial air traffic away from Berthoud to a 50-mile radius.  And, we're
> only some 60-miles from DIA in Denver.
> Dave - WØLEV
> On Mon, Dec 16, 2019 at 9:20 PM Tony <dxdx@optonline.net> wrote:
>> All:
>> I received the following updates from Tesla's Ms. Holmen regarding the
>> RFI being caused by their solar panel installation. The good news is
>> that she will be meeting with SolarEdge on Wednesday. The bad is that
>> she continues to deflect and place the blame elsewhere.
>> See below.
>> Tony -K2MO
>> __________________________________________________
>> Ms. Holmen:
>>     With the information supplied to me by you and your neighbor
>>     it has been determined this is purely a civil dispute between
>>     neighbors. Tesla and SolarEdge have done their due diligence
>>     to assist in your interference concern.
>> I recommend that you speak with an FCC agent regarding this matter. It
>> has nothing to do with a dispute - it's a matter of federal regulations.
>> https://www.fcc.gov/about/contact
>> <
>> https://urldefense.com/v3/__https:/www.fcc.gov/about/contact__;!!Oq3sn3U_Ofw!OgagJz_-_eM1HnZ0bMZR153PFADFP7_TJqnYRA60c6EY2dchdtvKrYoiDamM$
>> >
>> I've attached a letter that was sent to SolarEdge headquarters in
>> February of 2017. The document explains the issue of radio frequency
>> interference caused by solar panel installations and the FCC's role in
>> such matters.
>> Response:
>> Hi Mr. Bombardiere,
>> Thank you for your email. I did speak with the FCC on Thursday of last
>> week. They did advise that a homeowner has the right to install solar on
>> their home regardless of potential interference. I advised the agent on
>> the line about the amateur license being help by the neighbor, and they
>> again informed me that the homeowner wishing to have solar is still
>> allowed to install it on their home. Jonathan was the name of the agent
>> I spoke to.
>> I do have a meeting with SolarEdge scheduled on Wednesday, December 18,
>> 2019 to discuss the troubleshooting options and what was installed on
>> your neighbors home.
>> Both SolarEdge and Tesla did their due diligence on this matter
>> attempting to fix this issue. I can inform you of the information I
>> receive in this meeting if you would like me to.
>> The only options I have at this time are removing the solar system and
>> cancelling your neighbors agreement or reducing his system size. Both of
>> these options will come at a cost.
>> ________________________________________________________________________
>> Ms. Holmen:
>> Thank you for taking the time to investigate further. With all due
>> respect to the FCC agent, he should have informed you about the FCC
>> regulations that pertain to electronic devices that cause RF interference.
>> If this same Tesla installation was causing interference with Fire or
>> Police communications, the FCC would shut the system down immediately
>> until the problem was fixed.
>> While the customer has every right to have solar panels, I'm sure you
>> understand that licensed FCC operators like myself have rights as well.
>> I want to thank you again for all you've done and continue to do to
>> resolve this issue. I'm confident that SolarEdge can come up with a
>> solution.
>>  > I can inform you of the information I receive in this meeting if you
>> would like me to.
>>   Please do.
>> Response:
>> Hi Mr. Bombardiere,
>> Thank you for your email. I did inform the FCC hotline specialist about
>> interference and about a neighbor with an amateur license.
>> When it comes to commercial areas, the city has regulations that Tesla
>> would comply with. Your neighbor and you live in a residential area,
>> therefore residential solar is allowed to be installed.
>> Fire stations, police stations and airports all have specific
>> regulations and are not in the heart of residential areas. Should these
>> be within a specific area, a city or township would block permitting and
>> inspections for these situations. I hope that I am explaining this
>> information clearly.
>> Please let me know if you have further questions. I will keep you
>> informed regarding the conversation I have with SolarEdge.
>> Best Regards,
>> *Ashley Holmen  | Specialist, Executive Resolutions*
>> 6611 Las Vegas Blvd S., Suite 200 , Las Vegas, NV 89119
>> p. (650) 546-8110 | aholmen@tesla.com <mailto:aholmen@tesla.com>
>> _______________________________________________
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> --
> *Dave - WØLEV*
> *Just Let Darwin Work*
> *Just Think*


*Dave - WØLEV*
*Just Let Darwin Work*
*Just Think*
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