[RE-wrenches] SMA String inverters

[August Goers]

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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