-
Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
Why is the grid supplying energy during peak rate?
- Thread starter TJK
- Start date
Disclaimer: I have none of this equipment.
Any chance it has estimated that it will be below 20% before 6PM so it's trickling in a little in order to get you there?
Also, surely on even an overcast day you'd be making more than 0.4kW from your solar between 2 and 6 PM? I sometimes made that much while it was raining on my boat where I had only 2100W of solar.
Any chance it has estimated that it will be below 20% before 6PM so it's trickling in a little in order to get you there?
Also, surely on even an overcast day you'd be making more than 0.4kW from your solar between 2 and 6 PM? I sometimes made that much while it was raining on my boat where I had only 2100W of solar.
Are you using one of the Tesla pre-set rate plans based on your provider?
Or did you program in the TOU yourself?
Mine (PG&E TOU-B) doesn't have enough price difference between peak and off peak to cause the system to cycle during the winter period (8 months of the year). I've had my PW for 2 years but these pre-programed price / charts are pretty new.
If the peak and off peak price is not at least 10% different, I dont think the systems new algorithms will prioritize using the powerwall power. If thats the behavior you want, then you will need to increase the delta between the prices to trigger that.
take a look through the sticky thread on scheduling behavior, etc:
Tesla App Utility plan configuration: Multiple Peaks, Buy/Sell Behavior, etc
Starting a thread to document behavior I'm seeing using the new multiple peaks configurations (really multiple of any type). Maybe this information exists elsewhere but I couldn't find it when I first had my system go live a couple years ago, and I'm not really seeing if for the multiple peak...
teslamotorsclub.com
I don't imagine that's the case, but who knows... The 0.4kW was just from a passing cloud, the system generated about 18kWh so far today.
I'm not using a pre-set plan, I entered the times and prices manually. The price differences are pretty drastic, too... $0.04 for off peak and $0.20 for peak.
$0.04 for off peak and $0.20 for peak, so there's definitely enough difference. I'll check out that sticky though, thanks.If the peak and off peak price is not at least 10% different, I dont think the systems new algorithms will prioritize using the powerwall power. If thats the behavior you want, then you will need to increase the delta between the prices to trigger that.
take a look through the sticky thread on scheduling behavior, etc:
Tesla App Utility plan configuration: Multiple Peaks, Buy/Sell Behavior, etc
Starting a thread to document behavior I'm seeing using the new multiple peaks configurations (really multiple of any type). Maybe this information exists elsewhere but I couldn't find it when I first had my system go live a couple years ago, and I'm not really seeing if for the multiple peak...
I use self powered with a reserve, myself, so dont use time based controls at all. I also think there is some lag time in the schedule changes being effective, from what I remember people saying.
Log into the webpage of the gateway and click on the summary page to check if it also thinks it is in Time -Based control mode. I've seen it default back to self there even though the app said Time-based.
I needed to reboot the gateway to get it to sync with Tesla and correct itslf.
I needed to reboot the gateway to get it to sync with Tesla and correct itslf.
I think that the algorithm behind Time Based control mode is deeply flawed and a shoddy design from Tesla. At least for me it results in random, unnecessary and expensive use of power from grid, and so I would recommend avoiding using it if you can.
I am in the UK and as yet unable to enter price difference between peak and off peak, so no idea what it assumes and no way to try to trick it into behaving more reasonably as some owners have managed to do. In winter months, when there is little solar generation, I use the powerwall to provide load shifting - charging from grid in cheaper off peak period. To do this reliably I use self powered mode and have a script running on a Raspberry Pi that adjusts the battery reserve at start and end of my off peak supply. However in self powered mode the powerwall only charges from grid at a slow 1.7kW rate, and so when the battery is low I swap to Time Based control mode (that does use the 3.4kW optimum) to get sufficient charging in the off peak hours.
I am in the UK and as yet unable to enter price difference between peak and off peak, so no idea what it assumes and no way to try to trick it into behaving more reasonably as some owners have managed to do. In winter months, when there is little solar generation, I use the powerwall to provide load shifting - charging from grid in cheaper off peak period. To do this reliably I use self powered mode and have a script running on a Raspberry Pi that adjusts the battery reserve at start and end of my off peak supply. However in self powered mode the powerwall only charges from grid at a slow 1.7kW rate, and so when the battery is low I swap to Time Based control mode (that does use the 3.4kW optimum) to get sufficient charging in the off peak hours.
Similar threads
