Description
Simultaneous grid tie and solar inverter power tracking.
GoodWe GM1000D is a dual-channel single-phase smart energy meter with two pre-wired split-core current transformers, engineered to measure incoming utility grid power and existing solar inverter generation simultaneously for AC-coupled storage retrofits.
Dual-Channel Current Measurement (2 CTs)
Measures incoming utility grid power and existing solar PV generation on two separate channels simultaneously.
Optimized for AC-Coupled Storage Retrofits
Provides real-time power data to GoodWe AC-coupled battery inverters to maximize solar self-consumption.
Non-Invasive Clamp-On Installation
Split-core CTs snap around main service lines without disconnecting main power cables.
High-Speed RS485 Data Protocol
Direct integration with SEMS monitoring portal and hybrid inverter control loops.
More product details
Adding an AC-coupled battery inverter to a home with an existing third-party solar inverter requires knowing both total grid exchange and exact solar generation. The GM1000D captures both data points on a single meter.
- CT 1 clamps around the main incoming utility phase line to measure household net import/export.
- CT 2 clamps around the existing solar inverter’s AC output line to track real-time solar generation.
- Internal processing calculates total household consumption and broadcasts telemetry over RS485.
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Fast non-invasive installation with complete cloud visibility.
Both included split-core current transformers snap directly around live insulated cables, eliminating service power outages during installation. Split-core CTs accommodate conductors up to 16 mm diameter without cutting cables. Real-time four-quadrant energy measurement displayed in the GoodWe SEMS mobile app. Low internal standby power draw (< 3 W) ensures negligible parasitic energy loss.
Includes two 120 A split-core clamps
Two matched 120 A : 40 mA current transformers enable independent dual-circuit monitoring on one single-phase installation.
Fits two DIN modules on the rail
The compact 36 mm housing clips directly to 35 mm DIN rail, eliminating the need for a second physical meter enclosure.
Runs dual-channel telemetry over RS485
Dedicated screw terminals feed both sensor channels into the internal processor for serial transmission up to 1000 metres.
Technical data
Essential dual-point telemetry engineered for single-phase AC-coupled battery retrofits.
Dual-CT single-phase smart meter for simultaneous grid feed-in and generation tracking.
Equipped with two independent split-core current transformers, the GM1000D measures both the utility grid tie point and the AC output of existing solar inverters simultaneously. It enables precise AC-coupled battery retrofit management and dynamic export limiting on single-phase domestic systems without requiring multiple separate meters.
- Dual-Channel
- 2x Split CTs
- High Precision
- Class 1.0
- Compact 2U DIN
- 36 mm
- Fast Telemetry
- < 1s
Model and type
- Phase
- Single-phase
- Current transformers
- 2
- CT ratio
- 120A:40mA
- DIN modules
- 2 modules
- Ecosystem
- SEMS
Accuracy
- Active energy accuracy
- 1 Class
- Reactive energy accuracy
- 2 Class
- Voltage and current accuracy
- 1 Class
Electrical
- Operating voltage
- 110/230 Vac
- Voltage range
- 0.88Un-1.1Un
- Frequency
- 50/60 Hz
- Power consumption
- <3 W
Communication
- Protocol
- RS485
- Communication distance
- 1000 m
Environment
- Ingress protection
- IP20
- Operating temperature
- -25-+60 °C
Project fit
Where this model fits.
Scenarios that show which projects the GoodWe GM1000D (single-phase smart meter, 2 CT) belongs in, what to verify before quoting, and when another model is the better pick.
Single-Phase AC-Coupled Storage Retrofits (Adding Battery to Existing Solar)
Single-phase homes with an existing third-party solar inverter adding a GoodWe SBP or AC-coupled battery system.
One meter tracks both the grid connection point and the existing solar inverter, providing complete system visibility and dynamic battery charging.
- Confirm this model against the adjacent rating in the same family
Documents
GoodWe smart meter datasheet, GM1000 / GM1000D / GM3000 (EN) GoodWe GM1000/GM1000D/GM3000 DatasheetProduct questions
Where should the two current transformers (CTs) be placed?
CT 1 on the main incoming grid line; CT 2 on the existing solar inverter's live wire. * CT 1 (Grid Point): Clamp around the main incoming Phase (L) conductor between the street meter and the distribution panel. * CT 2 (PV Point): Clamp around the Phase (L) output conductor coming from the existing solar inverter. Ensure the direction arrows on both CTs point in the correct direction (toward the load / away from source) as marked on the casing.
Can this meter work with third-party solar inverters?
Yes. CT 2 measures AC current from any brand of solar inverter. Because CT 2 measures standard 50/60 Hz AC current flowing through the cable, it is 100% compatible with any existing solar inverter brand (Enphase, SMA, SolarEdge, Fronius, etc.).