Fox ESS is a global leader in the development of inverter and energy storage solutions. Engineered by some of the world’s leading inverter and battery experts, their products offer advanced features, coupled with exceptional performance and reliability.
Fox ESS T25-G3 25kW Three-Phase String Inverter
The Fox ESS T25-G3 25kW three-phase string inverter delivers high-output, high-efficiency conversion for large UK residential and light-commercial photovoltaic systems. With dual MPPT tracking, a broad 140–1000V operating window and up to 98.6% peak efficiency, it sustains strong yield across British conditions — from multi-aspect arrays to days with variable cloud cover.
A rugged IP65 enclosure and fan-free thermal design support quiet, low-maintenance operation indoors or outdoors. Integrated residual-current and insulation monitoring, anti-islanding and surge protection help streamline G99 commissioning, while certification to EN62109 underpins safety. Built-in data logging with FoxCloud monitoring (Wi-Fi/LAN, optional 4G) provides real-time insight for owners and installers, and the T25-G3 offers a clear pathway to future battery adoption within the Fox ecosystem.
Pair with premium solar panels and robust solar mounting. For smaller arrays see the T20-G3.
Contact Evergy for product guidance or system compatibility support.£940.00
Fox ESS T6-G3 6kW Three-Phase String Inverter
The Fox ESS T6-G3 6kW three-phase string inverter delivers efficient, reliable conversion for compact UK residential and light-commercial photovoltaic systems. With dual MPPT tracking, a wide 140–1000V MPPT window and up to 98.6% peak efficiency, it maximises yield across typical British conditions — from mixed orientations to overcast days.
A robust IP65 enclosure and fan-free thermal design enable quiet, low-maintenance operation indoors or outdoors. Safety features include residual-current and insulation monitoring, anti-islanding and surge protection to support G99 grid compliance, while certification to EN62109 underpins electrical safety. Built-in data logging with FoxCloud (Wi-Fi/LAN, optional 4G) provides clear visibility for homeowners and installers, and the T6-G3 integrates naturally with the wider Fox ecosystem when you plan future storage.
Pair with quality solar panels and proven solar mounting. If you need more headroom, consider the T8-G3 or step up to the T10-G3.
Contact Evergy for product guidance or system compatibility support.£586.47
Fox ESS T8-G3 8kW Three-Phase String Inverter
The Fox ESS T8-G3 8kW three-phase string inverter delivers efficient, dependable conversion for UK residential and light-commercial photovoltaic systems. With dual MPPT tracking, a wide 140–1000V MPPT window and up to 98.6% peak efficiency, it maintains strong yield across real-world British conditions, including mixed-orientation arrays and overcast weather.
A rugged IP65 enclosure and fan-free thermal design support quiet, low-maintenance operation indoors or outdoors. Safety features — residual-current and insulation monitoring, anti-islanding and surge protection — help streamline G99 commissioning, while certification to EN62109 underpins electrical safety. Built-in data logging with FoxCloud (Wi-Fi/LAN, optional 4G) gives homeowners and installers clear visibility of generation and system health. The T8-G3 also provides a straightforward pathway to battery adoption within the Fox high-voltage LFP ecosystem when you’re ready.
Pair with quality solar panels and robust solar mounting, or upsize to the T10-G3 if your array grows.
Contact Evergy for product guidance or system compatibility support.£625.25
Fox ESS EVO Series 10kW All-in-One Inverter + 10.24kWh Battery Storage
The Fox ESS EVO Series 10kW All-in-One system seamlessly integrates a high-performance 10kW hybrid inverter with a 10.24kWh lithium iron phosphate (LFP) battery, delivering efficient and reliable energy storage for residential applications.
Integrated 10kW inverter: Optimised for large-sized homes
10.24kWh LFP battery: High-capacity storage with 95% Depth of Discharge
Scalable design: Expandable up to 30.72kWh with additional modules
IP66 rating: Suitable for indoor and outdoor installations
Smart monitoring: Integrated Wi-Fi for real-time system management
£3835.65
Fox ESS EVO Series 5kW All-in-One Inverter + 10.24kWh Battery Storage
The Fox ESS EVO Series 5kW All-in-One system seamlessly integrates a high-performance 5kW hybrid inverter with a 10.24kWh lithium iron phosphate (LFP) battery, delivering efficient and reliable energy storage for residential applications.
Integrated 5kW inverter: Optimised for small to medium-sized homes
10.24kWh LFP battery: High-capacity storage with 95% Depth of Discharge
Scalable design: Expandable up to 30.72kWh with additional modules
IP66 rating: Suitable for indoor and outdoor installations
Smart monitoring: Integrated Wi-Fi for real-time system management
£3223.48
Fox ESS EVO Series 8kW All-in-One Inverter + 10.24kWh Battery Storage
The Fox ESS EVO Series 8kW All-in-One system seamlessly integrates a high-performance 8kW hybrid inverter with a 10.24kWh lithium iron phosphate (LFP) battery, delivering efficient and reliable energy storage for residential applications.
Integrated 8kW inverter: Optimised for medium to large-sized homes
10.24kWh LFP battery: High-capacity storage with 95% Depth of Discharge
Scalable design: Expandable up to 30.72kWh with additional modules
IP66 rating: Suitable for indoor and outdoor installations
Smart monitoring: Integrated Wi-Fi for real-time system management
£3548.70
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