[RE-wrenches] PV and EMP
Ray Walters
ray at solarray.com
Thu Mar 9 12:03:21 PST 2023
I'm not an EMP expert by any means, but I've dealt with quite a few
lightning damaged systems. Having a good connection to a low impedance
grounding system (steel cased well, Ufer ground) is crucial. I also
have had fantastic luck with Midnite's MNSPD line. Delta, not so much.
On 3/9/2023 12:39 PM, Starlight via RE-wrenches wrote:
> Right Dave. The VooDoo of EMI filtering, lightning protection or EMP
> induced voltage reduction attempts are similar and governed by the
> inverse square law. How much energy and how close is it? You must
> properly reduce energy propagation _at every point._ I have seen very
> expensive protection systems with poor implementation making the
> entire scheme useless. So, is the cost and effort worth the results?
> Study, then study more. It may be more cost effective to have a back
> part rather than spending money on an expensive preventative measure.
>
> Larry Crutcher
> Starlight Solar Power Systems
>
>
>
> On Mar 9, 2023, at 11:18 AM, Marco Mangelsdorf via RE-wrenches
> <re-wrenches at lists.re-wrenches.org> wrote:
>
> Hmmm...I wonder how much SolArk is dreaming.
> https://www.sol-ark.com/e-m-p/
>
> On Thu, Mar 9, 2023 at 9:58 AM Dave Angelini Offgrid Solar via
> RE-wrenches <re-wrenches at lists.re-wrenches.org> wrote:
>
> Depends on how close and how strong the pulse or strike is. In Mil
> satellites, the same thing. You can harden but are dreaming if you
> think your electronics can really survive it. Even harder to
> protect electronics that are powered on. The KH series spy sats I
> saw schematics for had redundant systems that were off or rotated
> I seem to remember. This was back in the 90's so very sketchy in
> the fog of time.
> For Offgrid, and High Rel power systems, a faraday cage for your
> inverter and CC is a must if you are in high lightning zone. A top
> of a mountain is often really hard on a house or Telcom. One place
> I have blows SPD's yearly.
>
>
>
> *Dave Angelini Offgrid Solar "we go where powerlines don't"
> http://members.sti.net/offgridsolar/ e-mail offgridsolar at sti.net
> text 209 813 0060*
>
>
> On 2023-03-09 9:09 am, Drake Chamberlin via RE-wrenches wrote:
>
>> Backwoods Solar sells kits to harden against EMP. I am wondering
>> how effective they would be.
>>
>> Drake
>>
>>
>> /Drake Chamberlin/
>>
>> /Athens Electric LLC/
>>
>> /Ohio Electrical Contractor’s License 44810/
>>
>> /CO Master Electrician’s License 4526/
>>
>> /NABCEP Certified PV Installation Professional/
>>
>> ---
>>
>>
>> On 2023-03-08 11:49, Glenn Burt via RE-wrenches wrote:
>>
>> I would review Sol Arks website as they say they are immune.
>> Probably have something to back that up published there.
>> -Glenn
>> Sent from my 'smart'phone, so please excuse typos and
>> spelling errors.
>> ------ Original message------
>> *From: *Marco Mangelsdorf via RE-wrenches
>> *Date: *Wed, Mar 8, 2023 11:37 AM
>> *To: *RE-wrenches;
>> *Cc: *Marco Mangelsdorf;
>> *Subject:*[RE-wrenches] PV and EMP
>> Aloha all,
>> Have any of you come across any articles or white papers on
>> how PV systems (including energy storage) fare under
>> conditions of electromagnetic pulses and solar flares?
>> Mahalo,
>> marco
>>
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