PWs should not discharge over night unless on self powered. During my initial 7 day learning, I had some unexpected behavior during shoulder, but never during Off Peak
-
Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
Time based control not working
- Thread starter powerwall88
- Start date
eml2
Member
In Balanced mode, PW may discharge overnight (off peak) if it thinks it won't go below the reserve by the next morning when the sun is up, and the solar is large enough to recharge it to full in normal case.
At least for now, you can still run Balanced mode if you have v3 of the mobile app.
Maybe this was balanced mode before, but I wish I could mix TOU and self powered together. I want TOU at peak where it will export any solar available during peak hours but off peak I rather it power the home with solar and charge battery with whatever remaining. For winter I will probably only use TOU, but right now there is plenty of solar to cover my off-peak and charge up the batteries before peak starts.
If you adjust the hours while using Balanced mode, you can effectively have a scheduled self-powered mode. We've used this method for the past 3 years and are self-powered 22+ hours a day while ensuring peak is always covered by our Powerwalls.
Typically we have a car charge from the grid around 3:30 am but we didn't drive it on Sunday so it didn't need to charge on Monday. A second car started charging shortly before 6 am. Since the Powerwalls had enough reserve remaining, they were able to cover the entire charging session. We were 95% self-powered on Monday, September 20th.
Last edited:
Unfortunately with the new app there isn't a balanced mode and not sure how long the older app will be supported for.
I reinstalled v3.10.14 on an older Android device and will keep it running as long as it supports Balanced mode.
eml2
Member
Yup. I will keep using v3 app as long as it still works with Balanced mode, unless Tesla puts back Balanced mode in v4.
Now 5 days into my “learning period” and it still drew from the grid during peak, and continued discharging the powerwall after peak ended, yesterday. Also, the powerwall discharged for a brief moment today even though weekends are all off peak.
Will be interesting to see if functionality normalizes after the 7 days…
Attachments
Spoke with Tesla today. My system is still behaving differently since reconnection compared to prior to disconnect:
- house draws from grid during peak; prior to disconnect house was powered exclusively by powerwall
- solar during peak is going to the house; prior to disconnect any solar during peak was being exported to grid and house was powered exclusively by powerwall
- powerwall is discharging at random times. About the only consistent behavior is that it does start discharging at the beginning of peak (5pm). However, some days it stops discharging at the end of peak (8pm) then starts discharging again a couple house later, sometimes it doesn’t start discharging again until 2 or 3 am and will discharge through the night; prior to disconnect, powerwall discharged only during peak and at no other times.
tier 1 had no explanation and said tier 2 will look into it
- house draws from grid during peak; prior to disconnect house was powered exclusively by powerwall
- solar during peak is going to the house; prior to disconnect any solar during peak was being exported to grid and house was powered exclusively by powerwall
- powerwall is discharging at random times. About the only consistent behavior is that it does start discharging at the beginning of peak (5pm). However, some days it stops discharging at the end of peak (8pm) then starts discharging again a couple house later, sometimes it doesn’t start discharging again until 2 or 3 am and will discharge through the night; prior to disconnect, powerwall discharged only during peak and at no other times.
tier 1 had no explanation and said tier 2 will look into it
clearly not normal behavior and is not a "learning issue"Spoke with Tesla today. My system is still behaving differently since reconnection compared to prior to disconnect:
- house draws from grid during peak; prior to disconnect house was powered exclusively by powerwall
- solar during peak is going to the house; prior to disconnect any solar during peak was being exported to grid and house was powered exclusively by powerwall
- powerwall is discharging at random times. About the only consistent behavior is that it does start discharging at the beginning of peak (5pm). However, some days it stops discharging at the end of peak (8pm) then starts discharging again a couple house later, sometimes it doesn’t start discharging again until 2 or 3 am and will discharge through the night; prior to disconnect, powerwall discharged only during peak and at no other times.
tier 1 had no explanation and said tier 2 will look into it
So my powerwalls started doing this on 11/1 where it just stopped discharging during peak or really at all. I have a question into support as to why this is happening. My conclusion, w/o talking to anyone, is that Nov 1 is a winter season and it's no longer worth it to discharge during peak times because of the large credits I've already earned with my utility. I now have a $940 credit and my annual true-up is coming up to January. The other conclusion is that I also messed around w/ the utility rate setting in the app. It was originally set to some Tesla default and I switched it to my actual utility rate, unfortunately the rate setting the app downloaded didn't have complete information, so it was missing ours between 2 sets of times and the rate associated with the TOU itself. I don't understand the buy/sell pricing feature which are associated with what seems like the weekday/weekend TOUs but why call it buy/sell? I've not been able to find out any information on this on Tesla's website.
I just changed November into the Summer season and the battery started to discharge, but when I put it back to Winter season, where the rate is ~50% lower during Peak, the battery just stopped discharging and I'm running on grid power. Haven't gotten confirmation from Tesla, but I was able to play around w/ it today. Hope that helps a little.
Thanks you for this discussion. I've experienced the same problem, but it only started a couple days ago, the first time I touched any settings related to time based control after starting to use v4.x app versions a couple months ago. For the three years I've owned this system, it would only discharge during peak when set to time based control according to times I set. No need for it to learn anything, I told it what to do and was responsible for the resulting behavior. Now, I can't get it to discharge during peak. I have to wait 7 days now for it to behave in a way I already know it should behave? Will Tesla reimburse me for the peak periods it won't discharge until it supposedly figures it out? If this is by design, it's continually frustrating that Tesla doesn't share any of the logic, apparently not even with their support staff. I'd rather have full control like I enjoyed in earlier versions.
Taureans77
Grant me serenity to accept things I cannot change
Having issues also with my powerwall. Not discharging during peak hours since I adjusted the custom rate with sdge on the tesla app. I have to manually do self powered on peak or off-grid on peak just for the power wall to discharge. Also at time my powerwall would not charge back up during the day when the sun is out. I have to play with the reserve slider to make it charge back up to 100%.
Taureans77
Grant me serenity to accept things I cannot change
Attachments
Very confusing results especially the Powerwall and House charts. Were these from different days as the data isn't inconsistent. The Powerwall is discharging during your Off-Peak and it shouldn't be doing that with the much lower rate.
