SolaX X1-Mini and X1-Boost G4 with GridZeno.

SolaX X1-Mini and X1-Boost G4 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.
  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 is in holding 0x300. XM4 and ZA4 are X1-Mini G4, XB4 is X1-Boost G4. The dongle reads the two the same way. The X1-Mini G4 Plus (5K and 6K-G4-P) has no public register map and isn't recognised yet.

What the dongle reads

Input 0x400-0x440 in one read: the meter in 0x409, the sun in 0x410-0x412, the run mode in 0x415 and the energy counters.

Export limit

None in SolaX' official maps. The inverter has a power limit, but it would also cut the house's own use of solar power and isn't used. All writes sit behind the password in 0x600.

Rated power

No table in any document, so it isn't read.

How it differs from its neighbours

• SolaX X1-Mini G3, X1-Boost G3, X1-Smart G1: The third generation, X1-Mini G3 and X1-Boost G3, is read in another range and can get the rated power from the machine type in 0x34E.
• SolaX X1-Smart G2: The X1-Smart G2 is read like the X1-Mini G4, but has three MPPTs and is connected in a terminal connector.

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

Network cable with RJ45 plug. Approx. 25 minutes.

Port

COM/CT

Pin

A at pin 4 (485_A), B at pin 5 (485_B)

Where

On the underside of the inverter, next to the Dongle port. The port has a screw and a waterproof cable gland that the cable is passed through.

See the full installation guide for SolaX X1-Mini and X1-Boost G4

GridZeno Dongle for SolaX X1-Mini and X1-Boost G4

This one works.

SolaX X1-Mini and X1-Boost G4 is the inverter GridZeno has been tested on. Check that your model is under X1-MINI 0.6-4.0K-G4, X1-MINI 5K/6K-G4-P (G4 Plus) and X1-BOOST 2.5-6K-G4. If it still doesn't suit you, you have 100 days' free return.