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Mine varies between "all solar" and "surplus solar" when in Balanced Mode. To me, if you have sufficient solar production, there is no point to charging faster to 100% just to go into Standby and let the surplus solar go to the grid before the Off-Peak period ends. With grid rules like NEM 2.0 that has Non-Bypassable Charges, it is beneficial to self-consume some of the solar so that you don't pay NBCs for those kWh during production hours.thats not what it is supposed to do at least under Cost Savings. During off peak, all solar should be going to PW.
What setting would change that?
Mine varies between "all solar" and "surplus solar" when in Balanced Mode. To me, if you have sufficient solar production, there is no point to charging faster to 100% just to go into Standby and let the surplus solar go to the grid before the Off-Peak period ends. With grid rules like NEM 2.0 that has Non-Bypassable Charges, it is beneficial to self-consume some of the solar so that you don't pay NBCs for those kWh during production hours.
It does matter if you have NBCs or your feed-in to the grid is reimbursed less than your retail consumption rate. Once you take power from the grid to allow your PWs to charge faster, you have already taken it. Once you hit 100%, you have to let the solar go to the grid. In PG&E territory, these fine points are not really consequential because we're only talking about a couple cents per kWh or less.But if the PW is going to get to 100%, doesn't matter if you charge it fast or slow. Same amount of power goes the the wall. Rest of the solar will power house and go to grid. As long as PW gets to 100% it doesn't matter if you stretch it out or do it as fast as you can, My concern would be in the stretch out scenario, you mat not get to 100%. What if cloud cover comes in the afternoon?
Not getting to 100% only matters if you routinely use up all the energy down to your Reserve. This time of year, my Reserve is set to 25% and my Powerwalls never go below 50%, even when they power the house from 4pm to midnight.I get the NBCs
But if you don't get to 100%, NBC is trivial
Agree. It should not discharge below the Reserve.Cost Savings mode appears to have a bug - it should reduce the electricity usage in the peak mode as much as possible.
We are under a FREE NIGHTS plan (free from 9PM to 9AM).
The TEG should not use any PowerWall energy during the Off-Peak period - and if there's excess during the Peak period, it is sent to the grid.
But that's not what's happening. The TEG is using PW energy overnight, sometimes dropping us well below our Reserve % (which is set at 30%) - I've seen the charge level drop close to 20% before the panels start getting solar power.
This must be a bug - because unless the grid is down, the system should not draw power from the PW below the Reserve %.
Not getting to 100% only matters if you routinely use up all the energy down to your Reserve. This time of year, my Reserve is set to 25% and my Powerwalls never go below 50%, even when they power the house from 4pm to midnight.
Sounds like you either need to do pre-cooling before Peak hours or you need more Powerwalls.I'm still on a 2pm to 9pm Peak. I have Reserve set at 30%. We are east of Sacramento and much hotter than you. If it gets above 95, I cannot make it all the way to 9pm. For the last 2 weeks or so we have been over 95. Usually runs out about 7:30pm
thats not what it is supposed to do at least under Cost Savings. During off peak, all solar should be going to PW.
What setting would change that?
Its not using grid - its using solar. Because of that, it can't charge the PWs for that little time. Then it goes back to charging the PWs.so you require grid power to start you AC?
I still don't understand the negative spikes