Growatt Smart Meters

When installing a battery, a meter is always needed to measure how much electricity flows to and from the power grid. Based on this information, among other things, the battery determines when it is charged or discharged.

There are different types of smart meters available:

• SPM-C: single-phase, without current coils
• TPM-C: three-phase, without current coils
• TPM-CT-C: three-phase, with current coils
• TPM-6CT: three-phase, with current coils, suitable for retrofit solutions
  • Provides insight into the generation of solar panels connected to an inverter other than the battery. 

See them all on our website: 4blue webshop

ℹ️ Note: Want to know which smart meter is suitable for your Growatt inverter? Then check this page: Which smart meter fits which inverter?. This prevents unnecessary adjustments and saves valuable installation time.

With or without current coils?

The use of a smart meter with or without current coils depends on the available space in the meter cupboard.

• Without current coils: The meter is placed directly in the main connection.
• With current coils: When there is insufficient space at the main connection or for another reason an inline current meter does not fit, a meter with current coils can be used. These coils are connected to the main cable entering the meter cupboard.

Can I also use other smart meters?

It is possible to connect other smart meters to Growatt inverters, but this requires extra configuration and is therefore not recommended. If you still want to use another smart meter, please consider the following:

✔️ The smart meter must have a Modbus (RS485) output to communicate with the inverter.
✔️ The communication settings must be correctly adjusted so that the inverter can read the correct data. Please consult the manuals of both the inverter and the smart meter for this.