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Dumping Excess Power During Peak Period
- Thread starter MichaelCo
- Start date
Just repeated the process, but this time, dragged the handle to the 2 am, and back to the left without letting go.
Glad it was that easy to get working. Sounds like a bug in the app, or at least the control in the app. You should file a bug report on the App or Play Store.
aesculus
Still Trying to Figure This All Out
Just a point I mentioned in another thread that was backed up by others observations for Cost Base mode: It appear that if you have a dramatically different TOU rate on Sat/Sun (like EVA on PG&E) that the PW can charge to a much lower value on Friday and even perhaps Thursday knowing that they won't need much energy to bank until the lower price on the weekend.
In my case during the weekdays it will generally try to charge to 100% during the day and then dump excess solar after that. On Fridays it will only charge to 75% and then send as much solar as it can, even before peak at 3pm. Then when partial peak arrives at 9pm Friday it's down to about 55% (50% reserve) in my case and the PW switch back to grid mode.
CrazyRabbit
Active Member
i live in Texas and we are not yet allowed to export to the grid. The option to export only appears in the app if your jurisdiction allows export. But it would be in everyone's interest to allow exporting, controlled by ERCOT or your local jurisdiction, before they start rolling blackouts... i would opt in for something like that, subject to my reserve limits.
aesculus
Still Trying to Figure This All Out
Just a point from yesterday. The algorithm went over the line a bit. Peak ends at 9PM and at 8:45PM we hit the reserve so we ended up paying a bit more for power than we should have. Not sure what drove the use but Tesla is kind of cutting it a bit too close perhaps. Maybe they should aim to leave 10% of a buffer instead of just a few percent.
Does anyone know if Tesla has planned to build a configuration that will allow this in California?
Hi Skryll,
Did you get your PowerWalls to do what you wanted?
I'm in the same boat (I just recently got my PowerWalls running):
During Peak, I want to send 100% of my solar to the grid, and use the PW to power my home.
Currently, on Advanced TBC - Cost Saving Mode, it still does NOT do that for me. I've set the Peak times correctly, with just a low 10% for Power Outage Reserve, but still, the PW will refuse to full power the house during Peak. Instead, it would let Solar power the house for the first part of Peak, and then later kick in to cover the shortfall from Solar. (I'm on the latest 1.48.1 firmware.)
I'm frustrated that my PW is not allowing me to send 100% of Solar to Grid during Peak.
Any suggestions, anyone?
thanks,
Bobby
Call Tesla. That is not normal system operation during Peak with TBC-Cost Saving mode.
Ok, got it. I called Tesla Energy support today, and requested escalation to Level 2 support. Thanks for the suggestion and confirmation that my system is acting up weird.
Not all the way. I opened a support incident also because it underreports incoming solar production by 50% and so it may be that it’s misconfigured which may lead to bad adaptive algorithm outcome.
If it’s exactly half what you’d expect (not just “feels like lower system production”), this is relevant and reveals a potential cause, mention it to support and it can be fixed.
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