Love to be able to have ESS able to prioritizes discharge from one battery over another at a high rate - Use it at maximum power drain possible until zero SOC as quickly as possible.
I have 2 Zcells and 2 Multi-plus Inverters solar PV and Grid. My primary goal is for solar and batteries as a UPS for my on grid business. That's why I have 2 Victron Inverters now.
Currently discharge happens often to both batteries. Zcells need a full discharge to 0% SOC every 3 days. While Zcell has a device Extractor which saves a little power to the battery not in maintenance It slows the discharge process. A slow discharge rate means a battery is in maintenance cycle for a lot longer than desirable for a U.P.S.. Usual setting in ESS restrict the rapid discharge of the single battery in maintenance cycle
I want also to avoid discharging any PV until battery(ies) not in maintenance are fully charged.
Goals-
- Discharge single battery in maintenance cycle to 0% SOC as quickly as possible for self counsumption or to the Grid
- Ensure other battery is not discharging and is 100% SOC while other battery is in maintenance
- Ensure Solar PV charges battery to 100% before discharging PV to grid (noting goal 1 as a priority)
Zcell are working on BMS side for me 'UPS mode 'and other Zcell users. Note RFX staff and executive are very helpful and approachable.
Happy to pay for this. If you can and have a freelancer or similar or quote directly for scripting as suggested to " Changing solar priority in ESS" by "Potgieter"
Thanks. Not comfortable scripting this myself