[RE-wrenches] NEM3 inverter quest/CT distance

[William Miller]

Friends:

The Soul-Arc inverter will also meet this requirement.

Does anyone know how long I can make the CT leads?


William Miller
Miller Solar.com
805-438-5600
www.millersolar.com


On Tue, Feb 18, 2025 at 12:11 PM August Goers <august at luminalt.com> wrote:

> Hi William -
>
> I know you're not a fan of Tesla, you so you might want to check out
> FranklinWH (which is basically like a supercharged Powerwall 2 system):
>
> https://www.franklinwh.com/products/apower2-home-battery-backup/
>
> or Enphase:
> https://enphase.com/store/storage/gen3/iq-battery-5p?srsltid=AfmBOoojCQ36cLiuTk7Egp47myyWpz834SsfiKw3fA_hp3B2__lhSbc0
>
> Enphase would require you to have microinverters for your PV whereas
> Franklin should be able to AC-couple to your existing PV inverter. Enphase
> is releasing their IQ Meter Collar adapter in the coming months:
> https://enphase.com/download/iq-meter-collar-data-sheet?srsltid=AfmBOopomsOkyikV7VatWtysBPHBp4UqW-uh_jSaZJx7HQxP0KgZwLGo
>
> This meter collar product is a total game changer - Tesla has had a meter
> collar adapter for the last year or more and it has probably reduced our
> labor by about half to provide whole-home backup. I understand that
> FranklinWh expects to have a meter collar coming in Q2 of this year.
>
> Best,
>
> August
>
>
>
>
> On Tue, Feb 18, 2025 at 12:03 PM William Miller via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> Friends:
>>
>>
>>
>> Now that I am on NEM3 I need to consider a battery system to capture
>> daytime energy production and use it to self-power at night.  I am new to
>> this concept so I apologize for newbie questions.
>>
>>
>>
>> It will not be easy for me to install a critical-loads sub-panel and I am
>> not looking for outage protection.  Therefore I think my only AC connection
>> to the inverter would be to the input.
>>
>>
>>
>> My shop has a 100 amp feeder and 8 Kw of PV on it.  (There is 2.5 Kw of
>> PV on the house).  The shop would be an ideal place to put an inverter and
>> battery bank.
>>
>>
>>
>> ·        I would like to charge batteries exclusively from solar and
>> only feed excess PV production back to the grid.
>>
>> ·        I would like to sell from batteries into my home distribution
>> but only to meet the use on my premises.  I assume CTs on the utility
>> feeder would regulate this sell rate.
>>
>>
>>
>> Is there an inverter that will do this?  I have not found the proper
>> search terms to give me usable answers.  I’ve been reading manuals from
>> many different manufacturers but manuals seem to have become very vague as
>> of late.
>>
>>
>>
>> Thanks in advance.
>>
>>
>>
>> William Miller
>>
>>
>>
>> Miller Solar
>>
>> 17395 Oak Road, Atascadero, CA 93422
>>
>> 805-438-5600
>>
>> www.millersolar.com
>>
>> CA Lic. 773985
>>
>>
>>
>>
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