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GoodWe

GW100K-GT-CN-G20

100 kW Grid-tie Three-phase
Compare with closest alternative Datasheet PDF
Rated AC (kW)
100.00
Strong · top 8%
Euro eff. (%)
-
Not published
MPPT
-
Not published
Max DC (V)
1100
Typical · median 1100 V
Weight (kg)
81.0
Strong · top 18%
Warranty (yrs)
-
Not published

GoodWe GT G2 series are three-phase string-type grid-tie inverters designed for commercial and industrial installations, where high performance and stable operation under challenging conditions are key. The application of multi-point MPP tracking brings tangible benefits to expanded module fields - it simplifies designing chains with different orientations and minimizes losses when parts of the roof are intermittently shaded. Multi-channel MPPT operation translates to better production optimization throughout the day, while high European efficiency helps maintain good performance under typical operating conditions in Poland, not just in ideal laboratory settings. In practice, GT G2 also supports modern modules with high input currents. For safety, features such as surge protection and solutions enhancing reliability in C&I environments are crucial. Monitoring via the SEMS platform and communication integration facilitate service supervision and diagnostics. This is the choice for companies seeking quiet, robust construction and predictable operation.

Ranking

243 inverters from 30 to 100 kW
Metric This inverter Median Position in class Rank in class
European efficiency - 98.2% Not published -
MPPT trackers - 4 Not published -
Max DC input voltage 1100 V 1100 V Typical 3
Weight per kW 0.8 1.1 Strong · top 18% 41
Warranty - 5 yrs Not published -
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Specifications

Open datasheet PDF
Rated AC power 100 kW Continuous output
Max AC power 110.00 kW Short-term output above the rating
Max apparent power 110.00 kVA
Phases Three-phase
Nominal AC voltage 380 V
Max AC current 167.1 A
Grid frequency 50 Hz
Power factor ~1 (0.8 leading ... 0.8 lagging adjustable)
Harmonic distortion (THD) 3.0 %
Max DC voltage 1100 V Caps the string length
MPPT voltage range 180 to 1000 V
Start-up voltage 200 V
Max input current per MPPT 42.0 A Must exceed the panel's Imp
Max short-circuit current per MPPT 52.5 A Must exceed the panel's Isc
Max efficiency 98.8 % Best single operating point
Dimensions 758 × 995 × 358 mm Height × width × depth
Weight 81.0 kg 0.8 kg per kW
Enclosure IP66
Cooling forced-air
Noise 60 dB
Operating temperature -35 to 60 °C
Max humidity 100 %
Max altitude 4000 m
Interfaces Display
Protocols RS4854G (optional)Bluetooth (optional)PLC (optional)
Protection AFCIDC switchSurge protection
Certifications NB/T 32004

Pros and cons

5 positive · 0 caution
What owners get
Maximum efficiency of 99.0%

The GT series achieves a maximum efficiency of 99.0% (according to the official GT 100-125 kW datasheet) and supports DC oversizing of 150% and AC overloading of 110%, which translates into a significantly higher annual yield in typical commercial installation conditions in Poland.

Support for up to 10 independent MPPT (Maximum Power Point Tracking) controllers

The 100-125 kW variants are equipped with 8 or 10 MPPT trackers, with an input current of up to 21 A/string, which allows for the integration of modern >700 Wp bifacial modules and minimizes losses due to varying orientations and partial shading.

IP66 rating + full power up to 45°C

The IP66 protection rating (higher than the standard IP65 found in many competitors in the C&I segment) ensures complete protection against the ingress of dust and water during outdoor installations, and the derating temperature is not activated until the ambient temperature reaches 45°C.

BNEF Tier 1, Q1 2026 - Bankability

GoodWe has maintained its Tier 1 BloombergNEF status since at least Q2 2025, confirmed in Q1 2026. This status is required by most banks that finance renewable energy projects on a non-recourse debt basis, which facilitates the acquisition of financing for C&I projects.

SEMS+ platform with AI module

Starting in January 2026, SEMS+ - the next generation of the monitoring platform - will be available. It features a 24/7 AI Agent (diagnostics through natural language queries) and a One-Click Checkup function specifically for PV (photovoltaic) systems. Support for Modbus-TCP, IEC104, and IEEE 2030.50 protocols allows for integration with SCADA/BMS systems in industrial facilities.

Alternatives

All GoodWe inverters
Inverter Power Euro eff. MPPT Weight Difference
GoodWe GW100K-GT-CN-G20 100 kW - - 81.0 kg You are here
SUN2000-100KTL-M2 100 kW 98.6% 10 93.0 kg 12.0 kg heavier
SUN2000-100KTL-M1 (@480 V) 100 kW 98.6% 10 90.0 kg 9.0 kg heavier
SG110CX 100 kW 98.5% 9 89.0 kg 8.0 kg heavier
Sunny Highpower PEAK3 SHP 100-21 100 kW 98.5% 1 99.0 kg 18.0 kg heavier
Sunny Highpower Storage SHPS 100-21 100 kW 98.5% - 99.0 kg 18.0 kg heavier
Solis-100K-5G 100 kW 98.5% 9 82.0 kg 1.0 kg heavier
Solis-100K-HV-5G 100 kW 98.5% 9 82.0 kg 1.0 kg heavier
MAX 100KTL3-X LV 100 kW 98.4% 10 84.0 kg 3.0 kg heavier

About the GT G2 series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this model's own.

Can the GoodWe GT G2 inverter be used in an industrial installation with modules having different orientations?
Yes, the multi-channel architecture of the GT G2 series MPPT trackers is specifically designed for such scenarios. Each MPPT tracker operates independently, so strings facing south and east do not negatively affect each other's production. This is a real advantage for industrial rooftops with complex geometries, where standardizing the orientation of the modules is impossible or not cost-effective.
What is the warranty on GoodWe GT G2 inverters?
The standard manufacturer's warranty for the GT G2 series is 5 years and covers manufacturing defects. GoodWe allows for the purchase of extended protection of up to 10, 15, or 20 years through an authorized distributor, but no later than 6 months from the date of the initial installation. To maintain the warranty, the inverter must be actively connected to the SEMS monitoring platform.
Does the GoodWe GT G2 work with modern, high-current bifacial modules?
Yes, the GT G2 series supports high DC input currents, which is crucial for modern half-cut and bifacial modules that generate over 14-15 A per string. This eliminates the need to compromise on the most efficient panels available on the market. Compatibility with high-power modules also allows for a reduction in the number of strings and simplifies wiring on large roofs.
What does the monitoring and remote diagnostics of GoodWe GT G2 inverters look like?
The inverter communicates with GoodWe's free SEMS (Smart Energy Management System) platform. Operators or technicians have access to real-time production data, alarm history, and performance reports without needing to be on-site. SEMS allows for simultaneous monitoring of multiple installations in different locations, making it a practical tool for companies managing a portfolio of C&I assets.
What are the key differences between the GoodWe GT G2 inverter and the SDT G2 series from the same manufacturer?
The SDT G2 series is primarily designed for residential and small commercial installations, offered in power ranges of 4-25 kW with two MPPT trackers. The GT G2 targets the commercial and industrial market - it features a greater number of MPPT inputs, higher output power, and is designed to operate in more demanding environmental conditions typical of large industrial rooftops or ground-mounted farms.
Does the GoodWe GT G2 inverter have surge protection, and is it suitable for use in harsh weather conditions?
Yes, the GT G2 is equipped with both DC and AC overvoltage protection. The device's design takes into account the demanding requirements of C&I (commercial and industrial) environments, where operating conditions are often more challenging than in residential installations. Its wide operating temperature range and appropriate IP protection class allow the inverter to operate reliably regardless of the season - even in the Polish climate with its variable temperatures and humidity.
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