FoxESS R100

The FoxESS R100 inverter is a three-phase, grid-connected inverter with a power output of 100 kW, designed for large commercial installations that require high efficiency and reliable operation in harsh conditions. With advanced safety features and remote monitoring capabilities, it is ideal for modern PV systems on industrial roofs, photovoltaic farms, and commercial installations. 

Product description

The FoxESS R100 belongs to a series of three-phase on-grid inverters dedicated to commercial installations, offering a rated power of 100 kW and very high efficiency of up to approx. 98.6%. A wide MPPT voltage range (200-1000 V) and a maximum input voltage of 1100 V ensure flexible PV string design and maximum energy utilization from modules, including bifacial ones. 

The IP66-rated enclosure and corrosion resistance allow for safe outdoor installation, even in demanding industrial environments. Integrated communication (Wi-Fi, RS485, LAN/4G option depending on version) and a dedicated app enable real-time monitoring of inverter operation, diagnostics, and energy production optimization. 

Key features and benefits

• 100,000 W AC output power, three-phase on-grid operation – ideal for large commercial facilities, warehouses, production halls, and PV farms. 

• Up to 9 independent MPPT trackers (9/2 configuration) allow for optimal management of PV strings with varying sunlight exposure and roof orientation. 

• High maximum efficiency of approx. 98.6% and European efficiency of approx. 98.2% translate into lower energy losses and higher return on investment. 

• The AFCI (Arc Fault Circuit Interrupter) function increases the fire safety of the installation by detecting and limiting electric arcs on the DC side. 

• The PID Recovery function reduces the degradation of PV modules and helps maintain high generation efficiency over a long service life. 

• Monitoring currents in PV strings facilitates servicing, allows quick location of potential problems, and optimizes the operation of the entire installation. 

Technical parameters (summary)

• Rated AC power: 100 kW (100,000 W), three-phase grid-connected inverter. 

• Max. DC voltage: 1100 V; MPPT operating range: 200–1000 V; start-up voltage: approx. 250 V. 

• Number of MPPTs: up to 9; inverter compatible with bifacial modules thanks to high input currents (13–16 A per string depending on version). 

• Protection rating: IP66 – can be installed outdoors, high resistance to dust and moisture. 

• Approximate dimensions: approx. 975 × 630 × 360 mm; weight approx. 90 kg, compact design for a 100 kW power class. 

• Communication and monitoring: LED, Wi-Fi as standard, optional LAN/4G and RS485, integration with the FoxESS portal and app. 

About the manufacturer FoxESS

FoxESS is a global manufacturer of inverters and energy storage systems, known for its advanced solutions for residential and commercial installations. FoxESS devices are created by an experienced team of engineers specializing in PV and battery technologies, which translates into high reliability and long product life. 

The R series, including the R100 model, is dedicated to large three-phase installations and combines high efficiency, extensive security features, and easy integration with monitoring and energy management systems. With a 10-year product warranty, the FoxESS R100 is a safe choice for investors planning long-term operation of their PV system.