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Powerwall Software 1.46
- Thread starter cwied
- Start date
JPP
Active Member
Do any of you know approximately how many hours or days passed between your 1.46.0 firmware update and when you noticed the new option in the app?
JPP
Active Member
eml2
Member
My PW got 1.46.0 yesterday at 9:25 am. I checked my Tesla app this morning but it was not there. It showed up about an hour ago when I checked. So, at least 24 hours for me.
Sonus
Member
I got 1.46.0 an hour ago and I have that feature enabled and I don't have a Tesla Car
Same here. Any one know a way to help an update along?Wish I could get 1.46.0. Still on 1.45.2
dortor4ev
Member
I have two powerwall systems - one for main house, and one for vacation home - one is updated the other is not
I've even tried logging on as the "installer" and running through the wizard to "check for software update" - but I'm getting an error in the update
I think we all just have to chill and wait - Tesla will push the updates to all of us when they are ready - and BTW it only changes the behavior of charging when you're off the grid (which should not be common for most of us).
I've even tried logging on as the "installer" and running through the wizard to "check for software update" - but I'm getting an error in the update
I think we all just have to chill and wait - Tesla will push the updates to all of us when they are ready - and BTW it only changes the behavior of charging when you're off the grid (which should not be common for most of us).
We had another question about our Powerwalls so we were talking with Tesla on Tuesday and they sent us the 1.46.0 firmware. It's been 2.5 days and we've charged a Model Y (supported) and a Model S (not yet supported) and still don't see the new option in the app.
marksvend
Member
It also lets you charge a car with excess solar energy during the day. This is the feature I most want. I have a lot of questions about how this works.
- Can you set it to charge to, say, 50% from the grid but up to 90% from excess solar production?
- How does it handle two cars?
- How does it know the car is plugged into the same location as the powerwalls are located?
It does? The official information from tesla on their web page is:
Vehicle Charging During Power Outage | Tesla Powerwall
========================================
Vehicle Charging Behavior
GRID STATE HOME ELECTRIC LOADS CHARGING BEHAVIOR
On Grid Any Load Vehicle charges as normal
Power outage with Powerwall above energy threshold or surplus solar Low Loads Vehicle charges with surplus power and energy
High Loads Vehicle slows charging to prioritize your home loads
Power outage with Powerwall below energy threshold Any Load Vehicle stops charging
=========================================
Where do you see that there is any change whatsoever when ON GRID with this new firmware?
As mentioned, It seems to me that all changes are predicated on a "grid down" situation. There doesnt seem to be any change for on grid charging behavior that I can see. Could you point me to information where on grid changes are confirmed as it relates to vehicle / charger charging?
dortor4ev
Member
this may be true but I doubt it - it does not match any of the documentation regarding this feature. The documentation clearly states it only affects "off-grid" behavior - all car charging is done as normal if you are "on-grid". I'd love to see where this behavior was asserted.
documentation here:
Vehicle Charging During Power Outage | Tesla Powerwall
in reviewing the matrix below it clearly states Vehicle charges "as normal" when the Powerwall system is "on grid".
dortor4ev
Member
I believe this phrase in the matrix is ambigous, but I'll add parenthesis to force the order of operations to be correct:
#1 - Power outage & (Powerwall above energy threshold OR surplus solar)
some people might have read it as follows:
#2 - (Power outage with Powerwall above energy threshold) or surplus solar
statement #1 is correct, statement #2 is incorrect - the dominate criteria for charging the vehicle is "on or off grid" - when "off-grid" excess solar can be used to charge the car - the same is not true when you are on grid.
#1 - Power outage & (Powerwall above energy threshold OR surplus solar)
some people might have read it as follows:
#2 - (Power outage with Powerwall above energy threshold) or surplus solar
statement #1 is correct, statement #2 is incorrect - the dominate criteria for charging the vehicle is "on or off grid" - when "off-grid" excess solar can be used to charge the car - the same is not true when you are on grid.
eml2
Member
Agree #1 is correct. Besides, it states that when Grid State is On Grid, everything is normal.
So, I tested it out yesterday. I disconnect from the grid at 3:15 pm when PW is 96%. Luckily no frequency issue. I set the threshold at 85%. When it started charging M3 at 20A, it charged as normal. Pulling 20A (from both solar and PW). So, it didn't charge with only surplus solar. After 15 minutes pulling from both solar + PW, I changed the threshold to 95%. Once PW dropped below 95%, I can see M3 started varying current on its own, trying to make PW closed to 0 kW, but most of the time it hovered around +/- 0.2 kW.
Charge current was fixed at 20A (as normal) until 3:37 pm. Then it started to varies on its own.
Shygar
Member
I only have a single powerwall, and my Tesla wall connector is not backed up in my backup load center, but I have the option enabled in the app. I'm curious now what will happen in an outage . I don't see how it can possibly charge, so I'm guessing they just don't have a configuration option for those of us without whole house backup.
. I don't see how it can possibly charge, so I'm guessing they just don't have a configuration option for those of us without whole house backup.
aesculus
Still Trying to Figure This All Out
I am the same. Purposefully did not back up the WC.I only have a single powerwall, and my Tesla wall connector is not backed up in my backup load center, but I have the option enabled in the app. I'm curious now what will happen in an outage
Short answer is nothing. You cannot charge your car during a grid outage unless you find an outlet that is backed up and you use the UMC. Your WC will be dead.
aesculus
Still Trying to Figure This All Out
Nope. And you have no choice if/when to install it. It just magically appears (or does not - I am also still on 1.45.2).