Sounds like you are getting solar and it is charging the battery, while also powering the house as needed. The rate of charging would certainly be affected by how much solar is being generated, and in a case of having 10 panels (as you mentioned) and factoring in weather, positioning of the sun, positioning of the panels, etc. it's certainly possible that not as much solar is getting generated and therefore not as much is going to charge the powerwall after some of that also gets used to go to the house.
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Discussion: Powerwall 3 [Speculation / Discussion etc]
- Thread starter n.one.one
- Start date
Anyone want to compare charge rates for powerwall 3?
For instance, today sunny day producing 1.5 kWo’clock at 9 in the morning and the powerwall went from 62% to 63% in 10 minutes, took 10 minutes to go one percentage point.
Of the 1.5 kW .5 was going to the house and one was going to the powerwall.
Just thought I would put this here if anybody else with a new powerwall 3 would like to do a little comparing. I’m just curious thank you.
For instance, today sunny day producing 1.5 kWo’clock at 9 in the morning and the powerwall went from 62% to 63% in 10 minutes, took 10 minutes to go one percentage point.
Of the 1.5 kW .5 was going to the house and one was going to the powerwall.
Just thought I would put this here if anybody else with a new powerwall 3 would like to do a little comparing. I’m just curious thank you.
They are all going to charge at different rates, depending on the size of the PV system (when on grid) or how its set to get energy from the grid (when charging from the grid, if allowed).
Our single PW3 was installed about 40 days ago. For the first few weeks it was set to NOT EXPORT (as Puget Sound Energy (PSE) hadn't approved it yet). During this "No export" time, the KW numbers coming from solar and going into battery seemed appropriate all the time. Literally since the day they approved Export (and thus the config was changed to allow export), once the PW3 gets to 100% charge, none of the KW numbers on the app's main screen make any sense. For instance, we have a 4.6kW solar system. It may say that the Solar is 6.2kw, that the Home is 0kw, and the grid is 6.2kw. All of those numbers are impossible. Once the PW3 battery gets below 100% again (i.e. evening into morning) all the kw numbers are logical again.
NOTE: If I look in "Energy", all of the calculations for the recent hours seem logical. The issue is in the 'real time' kW numbers on the main screen in the app.
Anyone else having this problem?
NOTE: If I look in "Energy", all of the calculations for the recent hours seem logical. The issue is in the 'real time' kW numbers on the main screen in the app.
Anyone else having this problem?
CrazyRabbit
Active Member
Tesla Cybertruck to Receive Charging Improvements in Upcoming Update
Cybertruck will receive an OTA update with a 30% charge speed improvement, could come to other 4680 cells that Tesla cells too.
www.notateslaapp.com
Saw this quote today, “4680 production is currently mainly focused on Powerwall, Megapack, and Cybertruck”.
Interesting, don’t know if it is true. But that would explain the thickness increase in PW3, and put to rest pw3 is not LFP. Weight numbers do not coincide with LFP nor volume.
jgleigh
Member
I thought LFP was confirmed in another thread/post somewhere.
CrazyRabbit
Active Member
Good call! I talked with Tesla Energy support today, and they said the same thing. They saw that the house had "negative load" every day...i.e. CTs are in the wrong place... I still can't picture why everything looks OK when the battery is *not* 100% and only breaks when battery is 100%, but I'm probably not picturing the energy flow the right way. I've asked my contractor to relocate the CTs.
4680 is just cell size, what chemistry is inside is not necessarily related.
Tesla said. It’s LFP for PW3Tesla Cybertruck to Receive Charging Improvements in Upcoming Update
Cybertruck will receive an OTA update with a 30% charge speed improvement, could come to other 4680 cells that Tesla cells too.
Saw this quote today, “4680 production is currently mainly focused on Powerwall, Megapack, and Cybertruck”.
Interesting, don’t know if it is true. But that would explain the thickness increase in PW3, and put to rest pw3 is not LFP. Weight numbers do not coincide with LFP nor volume.
CrazyRabbit
Active Member
Don’t believe it is. Tesla doesn’t do lfp in 4680, nor is anyone else.
Most catl cells are prismatic, which are being used in Tesla lfp packs.
Most catl cells are prismatic, which are being used in Tesla lfp packs.
In my situation, the percentage of drain doesn’t match all the time sometimes it shows less drain than I know it should be based on what I’ve watched seen it do all the other times.
But right now I’m having my second calibration in progress in three weeks, so my powerwall is shut down and my solar is shut down. Are you having a calibration by any chance?
CALIBRATION IN PROGRESS- anybody else having one?
Iain
Member
I don't have a calibration, but I did have serious percentage drains that didn't make sense for the first few months of owning PW 3’s. My case was elevated to tier 3 along with software updates. It appears they are now working perfectly but I never did receive a report on what the issues were and what they did to resolve them.
And the problem with that is you don’t know if it’s an actual power drain in the battery or if it’s just the app and the percentage number is reporting incorrectly like I think mine does often but I’m not sure.
CrazyRabbit
Active Member
I saw that, I think someone is wrong. Data sheet doesn’t specify. Anyone look up the UL or ETL certification.
I believe Tesla Energy replied to someone on Twitter as well. Confirming its LFP
I just got 2 PW2’s installed. The installation guy told me it’s LFP in the PW3.
I just got 2 PW2’s installed. The installation guy told me it’s LFP in the PW3.
I still have not paired my phone via Bluetooth with my Powerwall 3. I also still dont have permission to operate/export from PG&E but they have the application now and it should be very soon.
My settings button on the app has a blue dot on it which I assume is for pairing the phone as that option on the next page is now at the top. I see the first instruction is to power the PW on and off with the on/off switch on the side of the unit.
Before I do that:
1. Is there anything I should know as to what happens next as to the procedure or is it straight forward pairing Bluetooth, has anyone here had an issue doing this with their PW 3? My fear obviously is the PW NOT powering back up for some reason.
2. Should I wait till I get PTO?
3. When I turn the PW off and back on I assume the app is going to tell me to open Bluetooth settings on my phone to pair it?
4. I wonder if for some reason I do NOT pair the phone and then the grid goes down and my wifi goes down, would I be able to pair it with the phone at that time? I should be able to as long as I have a cell signal??
I know, I worry too much.
The big thing here is the off then back on part that makes me nervous.
My settings button on the app has a blue dot on it which I assume is for pairing the phone as that option on the next page is now at the top. I see the first instruction is to power the PW on and off with the on/off switch on the side of the unit.
Before I do that:
1. Is there anything I should know as to what happens next as to the procedure or is it straight forward pairing Bluetooth, has anyone here had an issue doing this with their PW 3? My fear obviously is the PW NOT powering back up for some reason.
2. Should I wait till I get PTO?
3. When I turn the PW off and back on I assume the app is going to tell me to open Bluetooth settings on my phone to pair it?
4. I wonder if for some reason I do NOT pair the phone and then the grid goes down and my wifi goes down, would I be able to pair it with the phone at that time? I should be able to as long as I have a cell signal??
I know, I worry too much.
The big thing here is the off then back on part that makes me nervous.Similar threads
