I have a grid-connected installation where there is about 10kWp of PV.
I wonder what size Li-Ion battery bank should I use.
According to Victron blog:
I should use:
100Ah 48V bank for each 1,5kWp.
which means about
670Ah 48V battery bank.
Calculating that to kWh it is about 32kWh battery bank.
Then I should use 9x3,84kWh BYD LVS modules.
Is my calculation okay?
Why cannot I use less capacity, for example, 20kWh (it allows me to charge my batteries with max 0,5C)?
What other criteria are taken in recommendations to give such huge battery banks?