hello!
I ask for assistance in selecting a BMS for a home energy storage system (on grid, solar buffering).
I'm not quite sure what information to provide. I've estimated the nightly demand is approx 7kwh (calculated for 10hr use).
Already installed:
SolarEdge SE9K three phase AC coupled interver. 11.2kWp total panels.
I am looking to couple the SolarEdge with the Victron infrastructure.
To be purchased:
-Victron infrastructure (Venus control unit) https://www.victronenergy.com/panel-systems-remote-monitoring/venus-gx
-A Multiplus inverter/charger. Charge capacity around 35-70A depending on model: https://www.victronenergy.com/inverters-chargers/multiplus-ii
-Winston LiFePO4 prismatic cells. Capacity somewhere between 200Ah to 400Ah in 48V nominal setup. (24V might become relevant depending on multiplus pricing). Final budget will decide the size of cell. Estimated 10-14kw setup.
-BMS that can talk to the Victron control unit.
Questions:
1. I've found Batrium and REC that have some sort of verified "unsupported compability" with Victron. If there are vastly better options (price or performance), please link?
2. Does the required balancing capability of the BMS differ between a 18650 based bank, and a bank based of 400Ah cells. Any rules of thumb or way to navigate a suitable bms?
Cheers
I ask for assistance in selecting a BMS for a home energy storage system (on grid, solar buffering).
I'm not quite sure what information to provide. I've estimated the nightly demand is approx 7kwh (calculated for 10hr use).
Already installed:
SolarEdge SE9K three phase AC coupled interver. 11.2kWp total panels.
I am looking to couple the SolarEdge with the Victron infrastructure.
To be purchased:
-Victron infrastructure (Venus control unit) https://www.victronenergy.com/panel-systems-remote-monitoring/venus-gx
-A Multiplus inverter/charger. Charge capacity around 35-70A depending on model: https://www.victronenergy.com/inverters-chargers/multiplus-ii
-Winston LiFePO4 prismatic cells. Capacity somewhere between 200Ah to 400Ah in 48V nominal setup. (24V might become relevant depending on multiplus pricing). Final budget will decide the size of cell. Estimated 10-14kw setup.
-BMS that can talk to the Victron control unit.
Questions:
1. I've found Batrium and REC that have some sort of verified "unsupported compability" with Victron. If there are vastly better options (price or performance), please link?
2. Does the required balancing capability of the BMS differ between a 18650 based bank, and a bank based of 400Ah cells. Any rules of thumb or way to navigate a suitable bms?
Cheers