[RE-wrenches] Does anybody know if the LG Prime 16 battery has been test to UL9540A standards that would allow units to be closer than three feet apart?

[Eric Smiley]

My understanding is that UL9540A documentation is required if one plans to
exceed the limitations on size and quantity of ESS as well as separation
distances.
The UL9540A report has to be included in the Instructions and made
available to the AHJ if the IRC, IFC or NFPA855 limits are to be exceeded.

According to the documents on the LG website, the LGPrime series only has
UL9540 for a limited number of inverters in the US - SolarEdge, SMA, Goodwe
and Growatt. And they can not be used in Off-grid mode.


*Eric Smiley,* Project Manager
eric at vecoop.ca
T: 250.703.6004 <+12507036004>
T: 888.386.0116 <+18883860116>
*VIRIDIANENERGY.CA <https://viridianenergy.ca/>*

* <https://viridianenergy.ca/>*


On Thu, 26 Jan 2023 at 10:49, Scot Arey via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> The LG Prime 16 is a battery only. 16KWH with 10KW discharge makes it a
> very nice match with SolarEdge 11400. There is no integrated inverter
> within the battery.
>
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> *From:* RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> *On
> Behalf Of *Dave Angelini Offgrid Solar via RE-wrenches
> *Sent:* Thursday, January 26, 2023 10:31 AM
> *To:* RE-wrenches <re-wrenches at lists.re-wrenches.org>
> *Cc:* Dave Angelini Offgrid Solar <offgridsolar at sti.net>
> *Subject:* Re: [RE-wrenches] Does anybody know if the LG Prime 16 battery
> has been test to UL9540A standards that would allow units to be closer than
> three feet apart?
>
>
>
> The LG Prime is an NMC chemistry Lithium I believe. It probably needs as
> much protection as possible from thermal runaway as it is a definitely not
> as safe as LFP Lithium.  I hope I am wrong but that is what I know at this
> time.
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> The first system I saw that met UL9540 was the pairing of Discover AES and
> Schneider electronics. Others should be doing this and maybe are. The LG is
> an all in one battery and inverter and similar to Tesla Powerwall right?
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> https://blog.discoverbattery.com/discover-battery-aes-lifepo4-battery-certified-ul9540-for-solar-energy-storage-systems
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> I think you are right about 9540A from a quick look.
>
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>
> *Dave Angelini Offgrid Solar*
>
> *"we go where powerlines don't"*
>
> *http://members.sti.net/offgridsolar/ <http://members.sti.net/offgridsolar/>*
>
> *e-mail  offgridsolar at sti.net <offgridsolar at sti.net>*
>
> *text 209 813 0060*
>
>
>
> On 2023-01-25 8:35 pm, Scot Arey via RE-wrenches wrote:
>
> A new inspector asked a new question.
>
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> From my studies tonight it looks like UL9540A is not a listing but a test
> standard and in fact UL has a database of batteries that have been test to
> the A standard which according to UL can allow (with AHJ approval) less
> than 3-feet separation between batteries.
>
> The database not the easiest and LG is in there but cannot ascertain if
> for the Prime 16 so thought I’d share what I’ve learned and ask if others
> run across same.
>
> The IRC 328 section requires UL9540. But it also requires 3-feet unless
> tested in fire conditions for battery to battery inducement of thermal
> runaway. Anybody have any insight or recommendations?
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