I am using two EP600 units in ‘off-grid parallel’ mode. I have recently noticed that when charging via PV (DC + AC), only a maximum of 6 kW is used to charge the (both?) EP600 units; the rest is fed into the grid as surplus energy.
The PV output (DC + AC) is shown in green and the grid feed-in in blue. The difference corresponds almost exactly to the 6 kW used to charge the batteries. Charging starts at 11:30am; before that, all surplus energy is fed into the grid.
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However, according to the data sheet, ONE EP600 should have a PV charging capacity of 6 kW:
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Does this mean that only one EP600 is ever used to charge all 8x B500s, whilst the second EP600 is idle? With DC PV only, it would be logical for the EP with the DC PV input to handle the charging. But in my case, the DC component is small (~1.5 kW) whilst the AC component is around 12 kWp. Both EP600s could therefore utilise the AC component, as both are connected in parallel to the same phases.
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Does anyone else have two EP600s in off-grid parallel mode and could check for me what the maximum PV input power is?