MPPT Tracking?

[profdraper]

Seems odd the the PW3 provides no options for MPPT tracking & unlike some other inverter brands. I wonder if this functionality could be explored or activated in NetZero? Thanks.

[zigam]

Tesla made diagnostics access much harder for Powerwall 3, but it is possible. Netzero will require a few changes before the data is available.

Diagnostics for Powerwall 3 will require scanning the QR code behind the Powerwall 3 cover. It's best to take a picture of that QR code when the Powerwall is being installed or serviced. If that's not an option, you might be able to get the password from Tesla Support.

One you get the password, you can use the Tesla One app to access diagnostics (and soon, Netzero).

[profdraper]

Thanks for this, appreciated. Yes, I have tried a couple of times to log-in via bar code but does not work (& as many others have reported on various fora). Will see if I can obtain that from our solar installers.

Oh, & you mention the 'Tesla One' app (for Android it would appear). I've been using the Tesla app on iOS & iPadOS to log-in, register the powerwall & monitor the system, Tesla One appears to be a different thing & meant for 'Tesla employees & partners' whereas I'm just a consumer looking for a few answers & how best to monitor my powerwall at home. We shall see, shall investigate further.

Thanks again.

[zigam]

The Tesla One app is meant for installers, but currently doesn't prevent an owner from using it. The app is available for both Android and iOS. You log in using your Tesla credentials as an "External Partner". Then under the More menu / Tesla Device Setup you can scan the QR code from the Powerwall 3.

Note that you need the QR code from the leader Powerwall 3 (if you have multiple, this will be the one the installers designated as the leader). The code behind the Tesla Gateway door will not work -- the gateway network is not active in this setup.

[zigam]

The latest version of the Netzero app (2.0.2) has support for Powerwall 3 diagnostics. You might need to update the app manually from the App Store, since it's still rolling out.

[profdraper]

Good to see thanks so much for the update, a couple of observations: Your advice re. login to Tesla One all worked, shows MPPT info for my PW3 & that app will indeed re-connect again later with Network name & PW but needs to be very close by the the PW.

2.02 Netzero does so as well & seems to provide more details again on Strings vs. Tesla One's MPPT. For my solar array, Tesla One shows data for two MPPTs whereas Netzero shows data for 4 Strings (& two disabled). Not sure why the difference here, but seems I get more from Netzero.

A couple of other oddities: Once Tesla One has been connected up the first time, the app can connect again after that with the PW obtained from under the PW3 cover.

No so with Netzero for now: it always wants to be very close to the PW3 and wants only the QR code (will not accept Network & PW). Removing & replacing the cover is a drag obviously, so I made a Pic of the QR code & which works fine, but Netzero wants to re-log in every time to access the Diagnostics, does not retain the earlier figures, and also must be right next to the PW3 to do so.

Still, very nice thank you, appreciated. I hope this is useful.

[zigam]

Thanks for the feedback!

I'm surprised the were differences in the MPPT output, did you collect the data from the two apps at the same time? It's possible some strings were inactive if the sun wasn't up.

Both Tesla One and Netzero have to connect to the PW3 built-in Wi-Fi, so you need to be close. I'm not sure why Netzero would be any different here.

I'll check why Netzero didn't save the network name and password though, that should have happened.

[profdraper]

Yes I did collect the data at the same time.

[profdraper]

Yes, I did collect the data at the same time, pics here:Apologies, yes i need to be close to the PW in both cases, but also yet, Netzero cannot use the log/pw again, needs the QR code.CheersOn 8 Nov 2024, at 14:51, Ziga Mahkovec @.***> wrote: Thanks for the feedback! I'm surprised the were differences in the MPPT output, did you collect the data from the two apps at the same time? It's possible some strings were inactive if the sun wasn't up. Both Tesla One and Netzero have to connect to the PW3 built-in Wi-Fi, so you need to be close. I'm not sure why Netzero would be any different here. I'll check why Netzero didn't save the network name and password though, that should have happened.

—Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you authored the thread.Message ID: @.***>

[zigam]

Looks like the pics didn't get through, maybe you can send them to feedback@netzero.energy

Thanks!

[profdraper]

Yes, we're in Australia, 230v 50Hz.

3 x MPPTs here but each at higher current than the 6 in the US model,

Maximum Solar STC Input: 20 kW Withstand Voltage: 600 V DC PV DC Input Voltage Range: 60 - 550 V DC PV DC MPPT Voltage Range 60 - 480 V DC MPPTs: 3 Maximum Current per MPPT (Imp): 26A Maximum Short Circuit Current per MPPt (Isc): 30A

Model Number: 1707000-xx-y Nominal Grid Voltage (Input & Output): 230VAC Grid Type: Single Phase Frequency: 50Hz Nominal Battery Energy: 13.5 kWh AC Nominal Output Power (AC): 5 kW 10 kW Maximum Apparent Power: 5,000 VA 10,000 VA Maximum Continuous Current: 21.7 A 43.5 A Overcurrent Protection Device: 32 A 50 A Maximum Continuous Charge Power: 5 kW

[zigam]

To follow up here: I believe the differences in MPPT output are actually a Tesla One issue. The UK/Australia version of PW3 has 3 MPPT ports, but under the hood they look like 6 ports with paralleled strings (this allows for the higher current in this version of PW3). From what I've seen, the data in Netzero is more accurate than Tesla One.