SolaX X3-MIC with GridZeno.

SolaX X3-MIC on the compatibility list, updated 31 October 2026.

• Live overview of solar, consumption and gridAll subscriptions · Grid and consumption require an energy meter on the inverter and a firmware that shows it. Otherwise solar production only.
  Works
• Battery state of chargeAll subscriptions · requires a battery · The grid inverter has no battery.
  Not possible
• Stop selling at negative pricesSmart and Pro · SolaX' protocol has no export limit on this inverter.
  Not possible
• Charge from the grid when power is cheapSmart and Pro · requires a battery
  Not possible
• Discharge the battery when power is expensivePro · requires a battery
  Not possible

Works: tested and measured on real hardware.

The dongle reads the inverter and never writes anything to it.

What GridZeno reads

Solar production, and grid and consumption when there's an energy meter on the inverter.

Battery

None. The inverter is a grid inverter without a battery, so there's nothing to charge or sell from.

Grid export

SolaX' protocol has no export limit on this inverter, so GridZeno can't stop the sale.

The serial number in holding 0x300 starts with, for example, MC806T, MU806T, MC106T, MC203T-MC215T or PU: X3-MIC G2.

What the dongle reads

Input 0x400-0x434 and the meter from 0x43B. The rated power is read from the machine type in 0x34E by the X3 table in SolaX' V1.9.

The grid

The X3-MIC G2 got the meter in firmware ARM 1.06.

Export limit

None. In SolaX' V1.9, register 0x604 is the grid's over-voltage limit, not an export limit, and all writes need the password in 0x600.

How it differs from its neighbours

• SolaX X3-PRO: The X3-PRO G2 is read the same way, but is connected in an RS485 terminal connector instead of an RJ45 port.

From the dongle's firmware and our notes on each inverter, not from the datasheet.

Network cable with RJ45 plug. Approx. 25 minutes.

Port

RS485 terminal

Pin

A at pin 4 (RS485_A), B at pin 5 (RS485_B)

Where

On the underside of the inverter, behind a protective cover. The cable is passed through the waterproof connector with RJ45 from the accessory bag.

See the full installation guide for SolaX X3-MIC

GridZeno Dongle for SolaX X3-MIC

This one works.

SolaX X3-MIC is the inverter GridZeno has been tested on. Check that your model is under X3-MIC 3-15K-G2. If it still doesn't suit you, you have 100 days' free return.