Inverter Comparison

EG4 12000XP vs. EG4 FlexBOSS21

Price$2,589$4,199
Inverter Typeoff-gridhybrid
Input Data (PV)
Max PV Input Power24 kW21 kW
MPPT Voltage Range120-385 V120-440 V
Max PV Input Voltage500 V600 V
# of MPPTs23
Inputs per MPPT
2 / 2
2 / 2 / 1
Max Usable Input Current
35 A / 35 A
26 A / 26 A / 15 A
Max Short Circuit Input Current44 A / 44 A31 A / 31 A / 19 A
AC CoupleYesNo (only with gridboss)
Max AC Couple Input Power
Output Data (AC)
Nominal Output Power
12 kW
16 kW (with PV)
12 kW (battery only)
Peak Surge18 kW24 kW
Locked Rotor Amps (LRA)195 A195 A
Output Voltage120/240VAC120/240V
Grid Frequency50/60Hz50/60Hz
Max Output Current50 A66.7 A
Max Grid Passthrough (Bypass)100 A90 A
Battery
Battery Nominal Voltage48 V48 V
Battery TypeLead-acid / LithiumLead-acid / Lithium
Max Battery Charge / Discharge250 A / 250 A250 A / 250 A
General Info
Idle Consumption70 W65 W
Parallel SupportUp to 16 unitsUp to 16 units
MonitoringApp/Web/LCDApp/Web (LCD optional)
Outdoor RatingNo (IP20 only)NEMA 4X
Dimensions (H×W×D)34.25 × 20.9 × 5.9 in30.4 × 22.3 × 11.2 in
Weight104.7 lbs121 lbs
Noise Level<60 dB<50 dB @ 3 ft
Warranty5 years10 years