Fox ESS R75 75kW Inverter: The Versatile High-Power Three-Phase Commercial Solar Inverter

The Fox ESS R75 is a robust 75kW three-phase string inverter tailored for demanding commercial and industrial solar energy projects. Part of the high-performance R Series, it offers exceptional versatility and efficiency, designed to maximise energy yield from large solar panel arrays and deliver reliable power conversion for substantial operational cost savings.

Exceptional Flexibility with Nine MPPTs

What size inverter offers maximum optimisation for complex commercial roofs? The R75 provides outstanding flexibility with its nine independent Maximum Power Point Trackers (MPPTs), a key specification from the manufacturer's datasheet. This high number of trackers allows for intricate solar panel system designs, perfectly accommodating installations across multiple roof sections, varying tilts, orientations, and complex shading scenarios, ensuring optimal power harvest from every panel group.

High Efficiency for Commercial Returns

Maximise the financial viability of your solar investment. The R75 is engineered for high performance, with the technical data indicating a maximum efficiency of up to 98.6%. This ensures that a vast majority of the DC power generated by your extensive solar array is effectively converted into usable AC power, enhancing the overall energy output and improving the project's payback period. Features like integrated PID (Potential Induced Degradation) recovery further support long-term yield stability.

Robust & Reliable for Demanding Environments

Built for commercial applications, the Fox ESS R75 boasts a rugged IP66-rated enclosure, offering superior protection against dust and water ingress for reliable outdoor installation. Smart air cooling manages operating temperatures effectively under load. Professional installation using appropriate heavy-duty solar cabling and commercial-grade solar mounting systems is essential for longevity.

Advanced Monitoring & Safety Integration

Maintain oversight of your commercial solar asset. The R75 includes LED status indication and WiFi connectivity for app-based monitoring (other communication options like LAN/4G may be available). For enhanced safety and diagnostics critical in large systems, the datasheet confirms optional AFCI (Arc Fault Circuit Interrupter) and PV String Current Monitoring functionalities can be integrated.

Why Evergy Recommend This Product

The Fox ESS R75 is a powerful choice for commercial solar installations:

• High Power Output: 75kW capacity suits large commercial energy needs.
• Exceptional MPPT Flexibility: Nine MPPTs allow for highly optimised, complex array designs.
• High Conversion Efficiency: Maximises energy yield with up to 98.6% efficiency.
• Durable Construction: IP66 rating ensures suitability for commercial environments.
• Enhanced Safety Features: Includes PID recovery and optional AFCI / String Monitoring.

Ideal For / Target Audience

This 75kW three-phase string inverter is ideally suited for:

• Medium-to-large commercial rooftops (e.g., factories, warehouses, supermarkets).
• Industrial facilities installing significant solar capacity.
• Ground-mount solar projects requiring high power density and flexibility.
• Installations where maximising yield across numerous distinct panel groups is critical.

Note: As a string inverter, the R75 converts DC solar power to AC grid power. Integration with battery energy storage would require separate AC-coupled battery systems and controllers suitable for commercial scale.

Technical Specifications Overview

Key specifications for the R75 model, according to the Fox ESS datasheet, include:

• Rated AC Output Power: 75kW
• Number of MPP Trackers: 9
• Max. Efficiency: 98.6%
• Max. Input Voltage: 1100V
• Protection Degree: IP66

For full technical specifications, please consult the specs tab or the complete Fox ESS R-Series datasheet. For projects requiring even greater capacity, consider the Fox ESS R110 110kW inverter.

Delivery Information

The Fox ESS R75 is a substantial commercial inverter (90kg as listed in specs). Delivery requires specialised pallet freight services. Please contact our team or refer to our delivery information page to discuss logistics and site access requirements.

Optimise Your Commercial Solar Project

Choose the Fox ESS R75 string inverter for high performance and flexibility on your large-scale solar installation. Ensure compatibility with high-power commercial solar panels and appropriate mounting systems. Contact Evergy’s commercial solar division for expert consultation and project support.