Fox ESS T15-G3 15kW Inverter: The High-Power Efficient Three-Phase Solar Inverter

The Fox ESS T15-G3 marks a significant step up in power within the G3 range, delivering a substantial 15kW of three-phase AC output. This highly efficient string inverter is engineered for larger domestic properties with three-phase supply, or small-to-medium commercial installations aiming to maximise their solar energy generation from extensive solar panel arrays.

Powerful Dual MPPT for Large Arrays

What size inverter is needed for a large solar installation? The T15-G3 is designed to handle significant DC input, with the datasheet recommending up to 22.5kW. Its dual Maximum Power Point Trackers (MPPTs) provide flexibility for connecting two large strings, potentially across different roof faces. Notably, this model features higher input current capacity (28A per MPPT according to the technical specs) compared to lower T-G3 models, accommodating higher power solar panels or more panels per string.

Peak Conversion Efficiency

Ensure maximum return from your sizable solar investment. The T15-G3 inverter maintains the excellent performance standards of the T-Series G3, boasting a maximum efficiency of up to 98.6%, as detailed in the Fox ESS documentation. This high conversion rate is crucial for large systems, minimising energy losses and maximising the usable AC power generated.

Reliable Performance with Fan Cooling

Built for sustained high-power operation, the T15-G3 (and higher models) incorporates fan cooling, a change noted in the datasheet compared to the smaller units in the range. This ensures optimal operating temperatures even under high load conditions. The robust IP65-rated enclosure guarantees durability for outdoor installations. Professional installation with appropriate heavy-duty solar cabling and secure solar mounting systems is paramount.

Integrated Monitoring & Control

Monitor your system's performance effectively. The T15-G3 includes an LCD display for local status checks and supports optional WiFi or 4G communication modules. These enable connection to the Fox ESS Cloud platform, offering remote access to real-time and historical energy production data via smartphone app or web portal, providing valuable insights for system management.

Why Evergy Recommend This Product

The Fox ESS T15-G3 is a powerful contender for larger three-phase systems:

• High Power Output: 15kW capacity meets substantial residential or commercial energy needs.
• Enhanced MPPT Inputs: Dual MPPTs with high current capacity (28A/28A) handle large panel strings.
• Top-Level Efficiency: Up to 98.6% max efficiency ensures maximum energy yield.
• Robust Cooling: Fan cooling supports reliable operation at higher power levels.
• Proven G3 Platform: Leverages the latest Fox ESS string inverter technology.

Ideal For / Target Audience

This 15kW three-phase string inverter is highly suitable for:

• Large residential properties with three-phase power.
• Small-to-medium commercial buildings (offices, retail, workshops).
• Installations featuring large solar panel arrays, potentially using high-power modules.
• Projects where maximising energy yield and efficiency is a key objective.

Reminder: This is a grid-tied string inverter. It is designed to convert solar DC power for immediate use or grid export and does not manage battery storage systems.

Technical Specifications Overview

Key specifications for the T15-G3 based on the datasheet include:

• Rated AC Output Power: 15000W
• Number of MPP Trackers: 2 (Max Input Current 28A / 28A)
• Max. Efficiency: 98.6%
• Max. Input Voltage: 1100V
• Cooling: Fan
• Protection Degree: IP65

For full technical information, please view the specifications tab or the Fox ESS T-Series G3 datasheet. Other models in the series range from the T6-G3 (6kW) and T8-G3 (8kW) up to the T20-G3 (20kW) and T25-G3 (25kW). The T10-G3 (10kW) offers a lower power point with similar features.

Step Up Your Three-Phase Solar Generation

Select the powerful Fox ESS T15-G3 inverter for efficient and reliable conversion in your large three-phase solar project. Ensure correct pairing with high-power solar panels and use robust mounting systems. Contact Evergy’s team for tailored advice on your specific solar requirements.