Set backup reserve % to match current state of charge % and the battery will no longer be discharged for home load.
- How do I force PW to charge via HA?
Set backup reserve % > SOC % and will charge at 1.7 kW per battery
Set operating mode to ‘backup’ will charge at 3.7 kW per battery
Set operating mode to Time Base Control/ Autonomous with a OFFPEAK utility tariff, will charge at 5 kW per battery.
- How do I set overnight charge limit to leave space to capture solar excess via HA?
Leave backup reserve % low to allow headroom, or utilise a more comprehensive optimisation scheduler like EMHASS: An Energy Management for Home Assistant
- Not HA, can the powerwall allow export of solar excess but match load when import is detected. (eg. to avoid paying import pricing but get paid for exporting solar excess) Is there a mode for this?
Switch AllowedExports mode to PV only.