WannabeOwner
Well-Known Member
There is a view that the plan causes Powerwalls to cycle far more
My understanding is that cycling 100%-50%-100% twice is the same (in terms of longevity) as 100%-0%-100% once, so unless Tesla discharge it "fully", or equivalent, twice a day I'm not concerned. Presumably to do that they would need "peak demand" to occur twice a day.
Even with an evening peak-time export to grid, my own use won't cause much of a second discharge during the day. Currently I would charge from PV during the day, discharge in the evening and (in my case - high base-load ) top up during the night.
In Winter currently I would charge overnight and discharge (once) during the day. I suppose Tesla might re-charge during the day, if cheap energy available, in order to be able to also discharge again for the evening peak.
If I happen to need to charge my car during the day currently that would take some from PowerWall. Presumably Tesla would/could disable PowerWall if I put the car on charge during the day, which would be better
I must be missing something? because I'm not seeing a scenario for an increase in the average number of charges-per-day.