GoodWe GT Series On-Grid Inverter 100kW (8 MPPT - IP66)

The GoodWe GW100K-GT is a high power string inverter for large commercial and industrial solar projects such as factories, warehouses, shopping centres and big rooftops. It delivers 100kW on three phases and offers eight MPPTs with two strings each, so sixteen strings can be connected, each with up to 21A of input current for modern high power modules. A European efficiency of 98.4% and a series maximum of up to 99.0% mean very little energy is lost in conversion. Type II surge protection on the AC and DC sides and an integrated DC switch are included, with string level monitoring that helps locate a fault quickly. The enclosure is IP66, and optional C5 protection is available for corrosive environments such as coastal sites. The unit measures 930 × 650 × 300mm, weighs 85kg and comes with a 5 year warranty.

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GoodWe GT Series On-Grid Inverter - Key Features

• 100kW three phase on-grid output
• 8 MPPTs and 16 strings, up to 42A per MPPT
• Maximum input voltage of 1100V
• European efficiency of 98.4% and series maximum of up to 99.0%
• Type II SPD on both AC and DC sides
• Integrated DC switch and string level monitoring
• IP66 with optional C5 corrosion protection, optional AFCI
• Remote or on-site firmware upgrade
• 5 year warranty

GoodWe GT Series On-Grid Inverter - Technical Specifications

• Brand: GoodWe
• Model: GW100K-GT (GT Series 100-125kW)
• Type: three phase on-grid string inverter
• Rated output: 100kW
• MPPTs: 8, two strings each
• Maximum DC voltage: 1100V
• Maximum input current: 42A per MPPT (21A per string)
• European efficiency: 98.4%
• Protection: IP66
• Dimensions (W × H × D): 930 × 650 × 300mm
• Weight: 85kg
• Communication: RS485, PLC, optional Wi-Fi
• Warranty: 5 years

Who Should Buy This Inverter?

• Large factories and industrial plants
• Shopping centres, warehouses and logistics sites
• Developers building commercial rooftop projects
• Sites near the coast that benefit from the optional C5 protection
• Owners who want string level monitoring to cut maintenance time
• Net metering projects that plan to export surplus power

Why String Level Monitoring Matters

On a 100kW rooftop there may be hundreds of panels wired into dozens of strings. When one string underperforms because of a loose connector or a shaded panel, the loss can go unnoticed if you only see the total output. String level monitoring shows the output of each string, so a technician can go straight to the problem instead of testing the whole roof. That reduces downtime, protects your yield and saves labour, which matters most on large systems where small losses add up over a year.

GoodWe GT Series On-Grid Inverter - Compatibility and Installation Guide

• Confirm that your site has a three phase connection at the right size
• Design strings to stay inside the 1100V and 42A per MPPT limits
• Plan a wall or frame that can hold an 85kg unit
• Use correctly sized DC and AC cables, and check polarity
• Check your utility’s requirements for net metering
• Installation should be done by a qualified commercial solar installer

Frequently Asked Questions

What is the rated power?
100kW three phase.

How many MPPTs does it have?
Eight, with two strings each.

What is the efficiency?
98.4% European, with a series maximum of up to 99.0%.

Does it need a battery?
No, it is an on-grid inverter.

What is the IP rating?
IP66, with optional C5 protection.

What is the warranty?
5 years.

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