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Tesla Powerwall (2) Calibration Cycles

 
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Energy Storage
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 Papahuhu
(@papahuhu)
Honorable Member Member
Joined: 1 year ago
Posts: 444
06/10/2026 3:16 pm  

@davesoa I’m rather a Luddite, but when I was running IOF an extension in the OE software took complete control of the powerwall. Although I’ve never run IOG I would assume the same is true. 
Pre subscription change, net zero was also doing this, but you can’t have two different and sometimes contradictory control inputs into the PW, so I’d imagine OE blocks or disable the net zero control input. 
The only reason for me to keep net zero is that it does offer a battery performance monitor that’s not available on the customer Tesla app. The reason that’s useful for me is that I flog the powerwall to death, in addition to getting max value out of my investment I have a secondary aim of degrading the performance below the 80% warranty threshold. So I want to check Tesla doesn’t diddle me out of a replacement battery, given they hide this data from the customer I have reason to question their motives.



   
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 EnergyStorageTech
(@energystoragetech)
New Member Member
Joined: 1 month ago
Posts: 6
09/10/2026 6:29 am  

One practical safeguard is to separate the calibration cycle from normal tariff automation: keep the reserve and TOU schedule documented, watch the app for the calibration notice, and temporarily disable grid charging if it starts during an expensive period.

The battery can then reach the reserve and wait for the next cheap window. Check the Tesla or NetZero logs afterwards to confirm when energy was imported and which controller issued the charge command.



   
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