Device Comparison

GoodWe GMK110 vs GMK330 vs GM3000

A GoodWe smart meter family comparison for single-phase, flexible CT-based monitoring, and dedicated three-phase inverter support.

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Which To Choose

Start with the practical fit, then read the table.

GoodWe Smart Meter GMK110

Best fit when single-phase (1P2W), solar import/export visibility, and local dashboards and Home Assistant.

GoodWe GMK330 Smart Meter

Best fit when 1P2W / 3P3W / 3P4W, solar import/export visibility, and local dashboards and Home Assistant.

GoodWe Smart Meter GM3000

Best fit when three-phase (3L+N/400Vac), solar import/export visibility, and local dashboards and Home Assistant.

Use this comparison when you want a GoodWe-native meter and need to choose between the simple single-phase GMK110, the more flexible GMK330, and the dedicated three-phase GM3000.

At A Glance

Key fit signals before the full table

A quick pass over the most decision-shaping details for each device in this featured comparison.

GoodWe Smart Meter GMK110

Phase
Single-phase (1P2W)
Installation
DIN-rail mounted single-phase smart meter with one included current transformer
Measurement
CT-based bidirectional single-phase smart meter for load monitoring and export-power control
Max current
120 A

GoodWe GMK330 Smart Meter

Phase
1P2W / 3P3W / 3P4W
Installation
Indoor DIN-rail mounted IP20 smart meter with external CTs.
Measurement
CT-based three-phase smart meter for consumption, demand, load monitoring, export power limit, and zero-feed applications.
Max current
120 A

GoodWe Smart Meter GM3000

Phase
Three-phase (3L+N/400Vac)
Installation
DIN-rail mounted three-phase smart meter with 3 included current transformers
Measurement
CT-based three-phase smart meter for voltage, current, power, energy, and export-limiting workflows in GoodWe systems
Max current
120 A
Before You Decide

Checks that matter before price.

  • Confirm your supply type first: single-phase, split-phase, or three-phase.
  • Decide whether DIN-rail wiring, CT clamps, or utility-meter access fits your switchboard.
  • Choose between cloud convenience and local data access before comparing prices.
  • For solar homes, make sure import, export, and load readings are measured at the right point.
Install fit
Phase support Single-phase (1P2W) 1P2W / 3P3W / 3P4W Three-phase (3L+N/400Vac)
Installation DIN-rail mounted single-phase smart meter with one included current transformer Indoor DIN-rail mounted IP20 smart meter with external CTs. DIN-rail mounted three-phase smart meter with 3 included current transformers
Measurement CT-based bidirectional single-phase smart meter for load monitoring and export-power control CT-based three-phase smart meter for consumption, demand, load monitoring, export power limit, and zero-feed applications. CT-based three-phase smart meter for voltage, current, power, energy, and export-limiting workflows in GoodWe systems
Max current 120 A 120 A 120 A
Meter fit
Accuracy class Class 1 Class 0.5 voltage/current and active energy; Class 1 reactive energy Class 1 (voltage/current and active power) / Class 2 (reactive power)
Current sensing 1 x 120A CT included 3 external CTs included; 120 A:40 mA CT ratio. 3 x 120A/40mA current transformers included
Monitoring
Protocol RS485 RS485 RS485 / Modbus
Local API Yes Yes Yes
Cloud dependency GoodWe SEMS and the compatible inverter ecosystem are typically used for normal monitoring, export-control workflows, and system visibility. Local RS485 meter link; SEMS / GoodWe cloud monitoring is optional through the wider inverter system. GoodWe SEMS and compatible GoodWe inverter workflows are typically used for normal monitoring, energy-management visibility, and export-control operation.
Home Assistant Yes Yes Yes
Solar fit
Solar import/export Yes Yes Yes
Buying context
Price range Unknown Installer-supplied or bundled with compatible GoodWe systems Installer-quoted
Availability Global / region-dependent GoodWe availability Global GoodWe residential smart-meter range; regional availability and compatible inverter lists vary by market and distributor channel. North America official page / broader global GoodWe smart-meter family availability varies by market
Source check
Last verified Jun 20, 2026 Jun 8, 2026 Jun 9, 2026
Product page Official page Official page Official page
Documentation Official docs Official docs Official docs
Verdict

Choose GMK110 for straightforward single-phase homes, GMK330 for mixed wiring flexibility, and GM3000 when a dedicated three-phase GoodWe setup is the better fit.

FAQ

Common decision questions.

Which energy meter should I choose?

Choose the option that matches your installation constraints and data path first. For 3 energy meter options, the full table is most useful after you know whether local data access, cloud convenience, backup behavior, solar visibility, or expansion matters most.

What should I check before comparing prices?

Check installation fit, required accessories, official documentation, monitoring platform support, and any unknown fields in the source-checked table. Price is only useful once those constraints are clear.

Can these devices work with local dashboards or Home Assistant?

GoodWe Smart Meter GMK110, GoodWe GMK330 Smart Meter, GoodWe Smart Meter GM3000 list Home Assistant support in the catalog. GoodWe Smart Meter GMK110, GoodWe GMK330 Smart Meter, GoodWe Smart Meter GM3000 are marked with local API support. Confirm firmware, region, and integration maturity before treating this as a final compatibility guarantee.

Are unknown fields a reason to avoid a device?

Not always. Unknown means the field was not confirmed from the reviewed source data. Treat it as a question for the installer, reseller, or manufacturer before making a purchase decision.

Does the verdict replace the specification table?

No. The verdict is a practical shortcut. Use the table to confirm the exact constraints that matter for your home, especially installation, monitoring, and support details.

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