Hybrid
Sofar Solar undefined ESI-12K-T1
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Sofar Solar • ESI-5-12K-T1

ESI-12K-T1

Region:China
Region shows where the seller or factory is located. Most ship globally, and all listed suppliers should be able to ship to your current location.
12kW
Nominal AC Power
98.2%
Max Efficiency
708 x 440
Dimensions (mm)
Size Your System Find Installer

Ideal Use Case

The Sofar Solar ESI-12K-T1 is tailored for specific solar energy needs. This inverter is an excellent choice if you:

Have a medium-sized 12.0 kW residential or small commercial system
Use three-phase grid connection
Need 3 independent MPPT trackers for different roof orientations
Want maximum energy harvest (98.2% peak efficiency)
Want to add battery storage now or in the future
Operate in extremely cold climates

Don’t guess your solar setup — calculate it first!

Take our Solar Quiz to get a personalized recommendation for panels, inverter, battery capacity, and system size — before you spend money on the wrong setup.

Run Technical Sizing

AC Output Data

Nominal AC Power12 kW
Max Efficiency98.2 %
Euro Efficiency97.8 %
Max AC Current0 A
Rated AC Current20 A
Number of Feed-in Phases3
THD (Total Harmonic Distortion)3 %

DC Input Data

MPP Voltage Range160~950 V
Max DC Voltage1000 V
Rated DC Voltage600 V
Min DC Voltage to Start200 V
Max DC Current60 A
Number of MPP Trackers3
DC Inputs3

Mechanical & Environmental Data

Dimensions (W x H x D)708 x 440 x 170 mm
Weight30.0 kg
Protection ClassIP65
Cooling MethodNatural
DisplayLCD
InterfaceRS 485

Operating Conditions

Operating Temperature-30 ~ +60 ℃
Humidity5-95 %
Frequency50, 60 Hz
Max Altitude4000 m
Power Consumption (Night)10 W

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Product FAQ

What size solar array can the Sofar Solar ESI-12K-T1 handle?

The Sofar Solar ESI-12K-T1 has a nominal AC output of 12kW with a maximum efficiency of 98.2%. It is typically paired with a solar array of 14–16kW DC for optimal energy harvest.

Is the Sofar Solar ESI-12K-T1 a hybrid inverter?

Yes, the Sofar Solar ESI-12K-T1 is a hybrid inverter that supports direct battery connection for energy storage and backup power.

Does the Sofar Solar ESI-12K-T1 have WiFi monitoring?

Most Sofar Solar inverters come with or support optional WiFi/Ethernet dongles. This allows you to track your solar production and battery status via a mobile app or web portal in real-time.

How many MPPT trackers does the Sofar Solar ESI-12K-T1 have?

This inverter features 3 independent MPPT trackers with a maximum DC input voltage of 1000V. Multiple trackers allow panels on different roof faces or orientations to operate independently for maximum yield.

Is the Sofar Solar ESI-12K-T1 a three-phase inverter?

Yes, this is a three-phase inverter. Three-phase inverters are ideal for larger homes, commercial systems, or regions with three-phase grid connections.