[RE-wrenches] SMA String inverters

[August Goers]

Hi Dave - Yes, the Powerwall 3 has LFP cells. I believe they are planning
on shipping it for the mass market later this year. It looks cool from what
I've seen - DC coupled (one inverter for both PV and battery) with 6 PV
trackers, 11.5 kW AC output, among other features.

August


On Wed, Jan 10, 2024 at 4:28 PM Dave Angelini Offgrid Solar via RE-wrenches
<re-wrenches at lists.re-wrenches.org> wrote:

> Hi August,
>
> I was told Tesla has LFP battery now.  True?  Thanks !
>
>
>
> *Dave Angelini Offgrid Solar
> "we go where powerlines don't"
>    <http://members.sti.net/offgridsolar/>https://offgridsolar1.com/ <https://offgridsolar1.com/>  <http://members.sti.net/offgridsolar/>
> e-mail  offgridsolar at sti.net <offgridsolar at sti.net>
> text 209 813 0060*
>
>
> On 2024-01-10 3:25 pm, August Goers via RE-wrenches wrote:
>
> We're starting to install the Tesla Solar Inverter with good results:
>
> https://www.tesla.com/support/energy/solar-inverter/tesla-solar-inverter
>
> It is going to be a tough product for others to compete with - the price
> point is low and features are high. 4 x MPPTs with low tracking voltage (60
> VDC), built in consumption monitoring, one SKU to handle 7.6 kW, 5.7 kW, 5
> kW, 3.8 kW AC rating via software programming, built in
> ethernet/WiFi/cellular and the rapid shutdown can meet the NEC hazard
> control system requirements meaning that only one Mid-Circuit
> Interrupter (MCI) is needed for every three modules. All in all, a solid
> offering with lots of design flexibility. Time will tell how reliable they
> are.
>
> Best, August
>
>
>
> On Wed, Jan 10, 2024 at 10:04 AM William Miller via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
> Jeremy:
>
>
>
> We generally avoided using the 41 series inverter for reasons specified
> here
> <https://millersolar.com/MillerSolar/case_studies/SMA_40_Series/Whats_wrong_with_40_Series.html>.
> If you find a new string inverter in the SMA lineup, you might want to
> check to see if they have resolved some of the shortcomings.
>
>
>
> I have not had reason to use string inverters because, other than Solar
> Edge, they do not offer intrinsic rapid shutdown.  Careful reading of the
> NEC indicates that even ground mount arrays require RSS unless the PV
> feeders run to a building with the sole use being to house solar
> equipment.  Having said that, I would imagine that if an inverter were
> mounted on the ground-mount rack, the requirement for RSS could be avoided.
>
>
>
> William Miller
>
>
>
> Miller Solar
>
> 17395 Oak Road, Atascadero, CA 93422
>
> 805-438-5600
>
> www.millersolar.com
>
> CA Lic. 773985
>
>
>
>
>
> -----Original Message-----
> From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On
> Behalf Of Jeremy Rodriguez via RE-wrenches
> Sent: Monday, January 8, 2024 1:44 PM
> To: re-wrenches at lists.re-wrenches.org
> Cc: Jeremy Rodriguez
> Subject: [RE-wrenches] SMA String inverters
>
>
>
> What are you wrenches that used to install the SBXXXX-41 units sourcing
> now? Looks like there is a new model on their website
>
>
>
>
>
> Jeremy Rodriguez
>
> Solar Installation / Design
>
> All Solar, Inc.
>
> 1453 M St.
>
> Penrose Colorado 81240
>
>
>
> Sent by Jeremy's iPhone. Sorry for typos and shorthand.
>
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