Those with multiple Powerwalls

[PlugNPlay85]

Those of you that have multiple Powerwalls, have you looked at what your rate your PWs charge at when charging from the grid?

Currently, I have two Powerwall 2s installed but I noticed that when the PWs are charging from the grid they charge at 3.3kw total.

Anyone else have the same issue?

 

[commasign]

Those of you that have multiple Powerwalls, have you looked at what your rate your PWs charge at when charging from the grid?

Currently, I have two Powerwall 2s installed but I noticed that when the PWs are charging from the grid they charge at 3.3kw total.

Anyone else have the same issue?

Maximum charge rate is about 1.7 kW per powerwall.

 

[abasile]

Maximum charge rate is about 1.7 kW per powerwall.

I wonder if Tesla has chosen to reduce the charge rate for some reason. I have a Powerwall spec sheet from this past April, and it shows the following:

Real Power, max continuous 5 kW (charge and discharge)

 

[SoundDaTrumpet]

I am curious if this has to do with a load calculation performed at the residence by the installers. I guess than can limit charge rates when they provision the system, no? It would not surprise me if they just added up breakers in the panel and said let's keep it under 15A and de-rate down by 125% to 12A. Then say oh, the provisioning software comes in different steps. Lets go with the 1.7kW setting.

 

[Reeler]

Generally, these things are not set up for fast cycling. Very few have solar above that rate such that the PWs could not absorb the incoming power.

 

[coolgj]

Well I do. Hopefully they can charger more then 1.7 kW. My solar generates 13 - 15 kW an hour. I only consume around 6 - 7 kWr unless I am charging the car.

Yes I use a lot of power.

 

[PlugNPlay85]

Now that I’m at 1.9 I’m having issues charging due to the update...

I think the grid charging is limited by the backup gateway.. If I shut off one of my PWs the other PW would charge at 3.3 from the grid so I know it’s not an issue with the PW.

 

[PlugNPlay85]

I wonder if Tesla has chosen to reduce the charge rate for some reason. I have a Powerwall spec sheet from this past April, and it shows the following:

I’ve seen my PWs charge at 5-6kw when charging from solar, but this that’s also my maximum production.

Charging rate from the grid was my issue

 

[eml2]

I have 2 PW2 and also have solar. I have seen my PW2 being charged at 6.8 kW. That is the max from my solar less my house load. Haven't tried to charge them using grid.

 

[fresnoboy]

Is any of this documented anywhere in terms of what its supposed to do?

 

[Shygar]

I switched to self powered mode today to try it and I notice I charge a lot faster from solar now. BTW I have a single powerwall. Before it would charge at 1.7 max

 

[PlugNPlay85]

Those of you that have multiple Powerwalls, have you looked at what your rate your PWs charge at when charging from the grid?

Currently, I have two Powerwall 2s installed but I noticed that when the PWs are charging from the grid they charge at 3.3kw total.

Anyone else have the same issue?

Ok guys, so Tesla call and basically the grid charging I saw was a bug. Charging from the grid is not allowed if you have a solar system, right now. Tesla is working through some legal stuff before they can release the grid charging feature. No ETA from Tesla right now.