12kW Off Grid Solar Inverter

● 12kw 3 phase solar PV grid-tied off-grid inverter with built-in MPPT controller ● Output voltage selectable range 360-440V, input voltage selectable range DC0-900 ● Multiple port selection, up to 12 units in parallel ● Output frequency can be selected from 50 or 60 Hz, maximum charge/discharge current 40A.
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12kW off-grid solar inverter, designed for maximum efficiency at an impressive 98%. With a robust set of features, this inverter boasts a maximum input power of 19.2kW, accepting input voltages ranging from 180V to 900V through its two MPPTs, each with a maximum input current of 16A. The inverter supports parallel string configurations, allowing for flexibility in installation. Equipped for off-grid applications, the inverter includes a battery management system, accommodating lithium and lead-acid batteries with a voltage range of 125V to 600V.

12kw off grid solar inverter feature


  • Flexible rate tariffs
    Charge from the grid during off-peak hours when energy is cheaper and discharge during peak hours when energy is more expensive.
  • Safe
    Physical and electrical double isolation, AFCI function integration, AC overcurrent, AC overvoltage, overheating protection IP65 protection level.
  • Multiple working modes
    1. Self-use 2. Time of use 3. Standby power 4. Grid priority
  • Fast backup
    Provides backup loads with switchover times of less than 10 milliseconds.


12kw off grid solar inverter details
A1 A2 A3 A4 A5
EPO/AFCI port BMS port Meter/CT port Dry contact DRM port
A6 A7 A8 B C
Parallel port Parallel port USB port WIFI port USB port
D E F G /
GRID port PV port Battery port PV switch (optional) /

Working Principle Diagram

12kw off grid solar inverter working-principle

DC Maximum Efficiency 98%
Maximum Input Power 19.2kW
Input Maximum DC Voltage 1000V
MPPT voltage range 180~900V
Maximum input current for a single MPPT 16/16A
Number of MPPTs/Maximum number of parallel strings 2/1
Rated output power 12kW
Maximum Output Current 19.1A
Grid voltage/range 400/360~440
Frequency 50/60Hz
Power Factor 0.8 lag - 0.8 advance
Off grid inverter for house

Off Grid Inverter for House

Remote communication base stations

Remote Communication Base Stations

Off grid solar inverter for island

Off Grid Solar Inverter for Island

Off grid solar inverter for mountain

Off Grid Solar Inverter for Mountain


Q1. Can it work without a connection to the electrical grid?

Yes, a 12kW Off-Grid Solar Inverter is designed to work independently without a connection to the electrical grid. Off-grid solar inverters are specifically designed for standalone solar power systems that operate in remote locations or areas where a grid connection is not available.

In an off-grid system, the solar panels generate electricity during the day. The 12kW Off-Grid Solar Inverter then converts the DC electricity produced by the solar panels into AC electricity, which can be used to power appliances and devices in your home or business. Additionally, the inverter manages the storage of excess energy in batteries for use during periods when the sun is not shining.

Q2. How many solar panels are needed for a 12kW system?

The number of solar panels needed for a 12kW system depends on the individual capacity of the solar panels being used. On average, for standard efficiency solar panels with a capacity of around 300 watts each, you would need approximately 40 solar panels to achieve a 12kW system. 

Number of Panels= Panel Capacity (kW per panel) divided by System Capacity (kW)

The actual number may vary based on factors such as the efficiency of the panels, local sunlight conditions, and any losses in the system.

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Eisley | 5/24/2024 6:35 AM
More than I expected!
Real test, installed 22 pieces of 550W PV panels, the power output has more than 11kW, very good results. This off-grid inverter has high power and long warranty, I'd like to buy another 15kW in the future.