Inverter Comparison

Sol-Ark 12K vs. EG4 FlexBOSS21

Price$4,850$4,199
Inverter Typehybridhybrid
Input Data (PV)
Max PV Input Power13 kW21 kW
MPPT Voltage Range150-425 V120-440 V
Max PV Input Voltage500 V600 V
# of MPPTs23
Inputs per MPPT
2 / 2
2 / 2 / 1
Max Usable Input Current
20 A / 20 A
26 A / 26 A / 15 A
Max Short Circuit Input Current25 A / 25 A31 A / 31 A / 19 A
AC CoupleYesNo (only with gridboss)
Max AC Couple Input Power9.6 kW
Output Data (AC)
Nominal Output Power
9 kW (battery only)
16 kW (with PV)
12 kW (battery only)
Peak Surge25 kW24 kW
Locked Rotor Amps (LRA)195 A
Output Voltage120/240V120/240V
Grid Frequency50/60Hz50/60Hz
Max Output Current37.5 A66.7 A
Max Grid Passthrough (Bypass)63 A90 A
Battery
Battery Nominal Voltage48 V48 V
Battery TypeLead-acid / LithiumLead-acid / Lithium
Max Battery Charge / Discharge185 A / 185 A250 A / 250 A
General Info
Idle Consumption60 W65 W
Parallel SupportUp to 9 unitsUp to 16 units
MonitoringApp/Web/LCDApp/Web (LCD optional)
Outdoor RatingIP65 / NEMA 3RNEMA 4X
Dimensions (H×W×D)29.5 × 17.7 × 10 in30.4 × 22.3 × 11.2 in
Weight78 lbs121 lbs
Noise Level<30 dB @ 77°F<50 dB @ 3 ft
Warranty10 years10 years