Discover the full range ofΒ FOX ESS hybrid inverters and battery packs, available for supply only or with professional installation. Whether you’re looking for a simple supply package or a complete installed solution, we provide flexible options to suit both residential and commercial projects.

For a bespoke quote, please complete our quote form,

To view our installed battery packages please visit our collection here

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Installed Fox 3.7-6kW Hybrids | EP6/12 IP65 battery Options | Floor/Wall Mounted | Outdoor | Heating Element | Built In Fire Suppressant |Ave Β£316/kW from Β£3,474.00 + VAT
Fully Installed Fox Hybrid Inverter Kits with EP6/EP12 Outdoor Battery Storage Options To view our full range of installed battery storage packages visit our collection pageΒ here To request a bespoke quote please complete our quotes form Nationwide Solar & Battery Installations Across the UK We provide professional solar and battery storage installations nationwide across most areas of the UK. Every system is fully certified and installed by qualified engineers, giving you peace of mind and long-term reliability. #5: INSTALLED-FOX-EP6/12-IP65 Storage Systems - Hybrid Inverter FOX EP12 Data Sheet FOX EP12 User Manual FOX EP6 Data Sheet FOX EP6 User Manual Fox K Series Hybrid Datasheet Please view ourΒ battery storage information page for sizing and selecting the right battery storage system for you. Fox ESS collection page for further information and documents OurΒ Fox hybrid inverter kits feature 3.7–6kWh hybrid inverters paired with EP6 or EP12 IP65-rated battery storage, suitable for outdoor installation and equipped with a heating element for cold weather operation. These kits allow charging from both solar panels and the electrical grid, offering a flexible, high-performance energy storage solution for UK homes and businesses. ⚠️ Note: EP series batteries are only compatible with the same model/size. EP Series Battery Features High-performance, scalable energy storage for a variety of applications Supports 90% depth of discharge (DoD) for maximum usable energy Scalable up to 4 batteries to increase system capacity Floor or wall mounting – compact and easy to install IP65-rated for reliable outdoor use High voltage and high efficiency for optimal energy management Integrated heating element for low-temperature environments Backed by a 10-year warranty EP5 Battery Specifications Weight: 60kg Nominal Energy: 5,76Wh Nominal Voltage: 192V Maximum Charge/Discharge Current: 27A Dimensions: 380 x 640 x 184 mm (W x H x D) EP11 Battery Specifications Weight: 110kg Nominal Energy: 11,52Wh Depth of Discharge: 90% Nominal Voltage: 384V Maximum Charge/Discharge Current: 27A Recommended Charge Current: 13.5A Dimensions: 710 x 640 x 185 mm (W x H x D) Why Choose Fox Hybrid Kits with EP Batteries? Flexible hybrid charging from solar panels or the grid Reliable outdoor performance with IP65 rating and heating element Scalable energy storage – expand capacity to meet growing needs Compact and easy to install – floor or wall mounting options Long-term reliability with a 10-year warranty Β 
Installed Fox 7-8kW Hybrids | EP6/12 IP65 battery Options | Floor/Wall Mounted | Outdoor | Heating Element | Built In Fire Suppressant | Ave Β£328/kW from Β£4,710.00 + VAT
Fully Installed Fox Hybrid Inverter Kits with EP6/EP12 Battery Storage Options Β  To view our full range of installed battery storage packages visit our collection page here To request a bespoke quote please complete our quotes form Nationwide Solar & Battery Installations Across the UK We provide professional solar and battery storage installations nationwide across most areas of the UK. Every system is fully certified and installed by qualified engineers, giving you peace of mind and long-term reliability. FOX EP12 Data Sheet FOX EP12 User Manual FOX EP6 Data Sheet FOX EP6 User Manual Fox K Series Hybrid Datasheet Β  Fox ESS collection page for further information and documents Fox Hybrid Inverter Kits with EP6/EP12 Battery Storage Our Fox hybrid inverter kits come with 3.7–6kWh hybrid inverters paired with EP6 or EP12 IP65-rated battery storage, suitable for outdoor installation and equipped with a heating element for cold climates. These kits allow charging from both solar panels and the grid, making them a flexible solution for residential and commercial energy storage applications. ⚠️ Please note: EP series batteries are only compatible with the same model/size. EP Series Battery Features High-performance, scalable storage for a wide range of applications Supports 90% depth of discharge for maximum energy use Scalable up to 4 batteries for increased capacity Floor or wall mounting – compact and easy to install IP65 rating – suitable for outdoor use High voltage and high efficiency Integrated heating element for low-temperature environments 10-year warranty for peace of mind EP6 Battery Specifications Weight: 56kg Nominal Energy: 5,760Wh Nominal Voltage: 192V Maximum Charge/Discharge Current: 27A Dimensions: 380 x 640 x 184 mm (W x H x D) EP11 Battery Specifications Weight: 110kg Nominal Energy: 11,57Wh Depth of Discharge: 90% Nominal Voltage: 384V Maximum Charge/Discharge Current: 27A Recommended Charge Current: 13.5A Dimensions: 710 x 640 x 185 mm (W x H x D) Why Choose Fox Hybrid Kits with EP Batteries? Flexible hybrid charging – from solar panels or the electrical grid Reliable outdoor performance – IP65-rated and with heating element Scalable storage – expand capacity to meet growing energy needs Compact and easy to install – wall or floor mounted Long-term reliability – backed by 10-year warranty
Fox ESS H3 Pro 20.0kW Hybrid Inverter with ECS4300 Battery stack of 7 (29.03kWh) Β£9,893.00 + VAT
Fox ESS H3 Pro 20.0kW Hybrid Inverter with ECS4300 Battery stack of 7 (29.03kWh) #2: FE-H3-PRO-20.0-ECS4300-WG Fox H3 Series 20kW Datasheet Β  Fox H3 Pro 20kW 3-Phase Hybrid Inverter & HV Battery Bundle This Fox H3 Pro bundle is a complete high-voltage hybrid storage solution, ideal for residential and small commercial sites. Designed for easy expansion and high efficiency, it combines the 20kW H3 Pro inverter with Fox ECS 4.14kWh HV batteries, delivering scalable energy storage and smart monitoring. Bundle Includes: 1 x Fox ECS 4.14kWh HV Battery (Master) – FE-HV-ECM-4300 6 x Fox ECS 4.14kWh HV Battery (Slave) – FE-HV-ECS-4300 1 x Fox H3 Pro 20kW Hybrid Inverter – FE-HV-PRO-20.0 Smart meter & WiFi dongle included Important: Register your installation with Fox online to activate the 12-year battery warranty. Otherwise, the default warranty is 5 years. Key Features: Plug-and-Play Installation – easy and fast setup Full Three-Phase Emergency Power Capability – reliable backup power Dual Battery Inputs – simplifies high-voltage battery connection Triple MPPT Trackers – ensures optimal PV performance Remote Monitoring – via FoxESS Cloud Expandable Storage – supports up to 86.4 kWh High Voltage Design – maximizes round-trip efficiency Scalable System – connect up to 10 storage inverters in parallel Battery Stack Limit: Maximum of 2 stacks with 7 modules per stack 1 Master + 6 Slaves per stack β†’ Total: 2 Masters + 12 Slaves Technical Specifications: Combined Weight: 320.6 kg Rated Power: 20,000 W Min PPT Voltage: 160 V | Max PPT Voltage: 1,000 V DC Startup/Shutdown Voltage: 160 V Max Input Voltage: 1,000 V | Max DC Power: 30,000 W Max AC Power (5 Minutes): 20,000 W | Surge AC Power (1 Second): 22,000 W Max DC Current: 96 A | Max DC Inputs: 6 DC Fuses: 1 | Connector Type: MC4 | Included Connectors: 12 Euro Efficiency: 97.4% | Transformer: None MPPT Quantity: 3 | Integrated DC Switch: Yes The Fox H3 Pro 20kW Hybrid Inverter & ECS HV Battery Bundle delivers flexible, scalable energy storage with remote monitoring and high efficiency, making it a reliable choice for modern solar PV systems. Please click here for registration page. Please check the warranty document for more information.
Fox ESS H3 Pro 25.0kW Hybrid Inverter with ECS4300 Battery stack of 7 (29.03kWh) Β£10,053.00 + VAT
Fox ESS H3 Pro 25.0kW Hybrid Inverter with ECS4300 Battery stack of 7 (29.03kWh) 2: FE-H3-PRO-25.0-ECS4300 Fox H3 Series 25kW Datasheet Β  Fox H3 Pro 25kW 3-Phase Hybrid Inverter Bundle – Complete Energy Storage Solution This complete Fox H3 Pro 25kW hybrid inverter bundle is ideal for residential or small commercial 3-phase installations, offering high-performance, scalable energy storage with up to 25kW charge/discharge. With multiple battery series options, storage capacity can be expanded, and up to 10 inverters can be connected in parallel, giving full flexibility to scale your system. Important: Register your installation with Fox online to activate the 12-year battery warranty. Otherwise, the default warranty is 5 years. Bundle Includes: 1 x Fox ECS 4.14kWh HV Battery (Master) – FE-HV-ECM-4300 6 x Fox ECS 4.14kWh HV Battery (Slave) – FE-HV-ECS-4300 1 x Fox H3 Pro 25kW Hybrid Inverter – FE-HV-PRO-30.0 Key Features: Plug-and-Play Installation – Quick and hassle-free setup Full Three-Phase Emergency Power – Reliable backup for critical loads Dual Battery Inputs – Simplifies high-voltage battery connections 3 MPPT Trackers – Optimized energy harvesting from solar panels Remote Monitoring – Access system status via FoxESS Cloud Expandable Battery Capacity – Add modules as your energy needs grow High Voltage Design – Maximum round-trip efficiency Included Accessories – Smart meter and WiFi dongle Warranty – 5-year standard, 10-year extended System Configuration: Maximum Stacks: 2 Modules per Stack: 7 (1 Master + 6 Slaves) Total Maximum Modules: 2 Masters + 12 Slaves Technical Specifications: Combined Weight: 325.6 kg Rated Power: 25,000 W Min/Max PPT Voltage: 160 – 1,000 V DC Startup / Shutdown Voltage: 160 V Max DC Power: 37,500 W Max AC Power (5 Minutes): 25,000 W Surge AC Power (1 Second): 27,500 W Max DC Current: 96 A Max DC Inputs: 6 DC Fuses: 1 Connector Type: MC4 (12 included) Euro Efficiency: 97.4% Transformer: None MPPT Quantity: 3 Integrated DC Switch: Yes This Fox H3 Pro 25kW bundle is a highly flexible and reliable energy storage solution, perfect for future-proofing your solar setup with maximum efficiency, scalability, and remote monitoring capabilities. Remember to register your install with Fox online to activate the 12 year product warranty, otherwise it's 5 years as standard. Please click here for registration page. Please check the warranty document for more information.
Fox ESS H3 Pro 30.0kW Hybrid Inverter with ECS4300 Battery stack of 7 (29.03kWh) Β£10,429.00 + VAT
Fox ESS H3 Pro 30.0kW Hybrid Inverter with ECS4300 Battery stack of 7 (29.03kWh) 2: FE-H3-PRO-30.0-ECS4300-WG Fox H3 Series 30kW Datasheet Β  Fox H3 Pro 30kW 3-Phase Hybrid Inverter & HV Battery Bundle This Fox H3 Pro 30kW bundle is a complete high-voltage hybrid storage solution designed for residential and small commercial sites. With up to 30kW charge/discharge capacity, this system is fully scalable, allowing you to add batteries and expand storage up to 86.4 kWh. The system can also support up to 10 inverters in parallel, giving ultimate flexibility for larger installations. Bundle Includes: 1 x Fox ECS 4.14kWh HV Battery (Master) – FE-HV-ECM-4300 6 x Fox ECS 4.14kWh HV Battery (Slave) – FE-HV-ECS-4300 1 x Fox H3 Pro 30kW Hybrid Inverter – FE-HV-PRO-30.0 Smart meter & WiFi dongle included Important: Register your installation with Fox online to activate the 12-year battery warranty. Without registration, the default warranty is 5 years. Key Features: Plug-and-Play Installation – fast and easy setup Full Three-Phase Emergency Power – reliable backup capability Dual Battery Inputs – simplifies connection of high-voltage batteries Triple MPPT Trackers – optimises solar PV generation Remote Monitoring – via FoxESS Cloud Expandable Battery Capacity – scale storage up to 86.4 kWh High Voltage Design – maximises round-trip efficiency Smart Meter & WiFi Dongle Included Extended Warranty – 5 years standard, 10 years extended Battery Stack Limit: Maximum of 2 stacks per inverter 7 modules per stack β†’ 1 Master + 6 Slaves per stack Total: 2 Masters + 12 Slaves Technical Specifications: Combined Weight: 325.6 kg Rated Power: 30,000 W Min PPT Voltage: 160 V | Max PPT Voltage: 1,000 V DC Startup/Shutdown Voltage: 160 V Max Input Voltage: 1,000 V | Max DC Power: 45,000 W Max AC Power (5 Minutes): 30,000 W | Surge AC Power (1 Second): 33,000 W Max DC Current: 96 A | Max DC Inputs: 6 DC Fuses: 1 | Connector Type: MC4 | Included Connectors: 12 Euro Efficiency: 97.4% | Transformer: None MPPT Quantity: 3 | Integrated DC Switch: Yes The Fox H3 Pro 30kW Hybrid Inverter & ECS HV Battery Bundle delivers a high-performance, scalable energy storage solution with remote monitoring and full three-phase backup, ideal for modern solar PV installations. Remember to register your install with Fox online to activate the 12 year product warranty, otherwise it's 5 years as standard. Please click here for registration page. Please check the warranty document for more information. Β 
Installed Fox 9-10.5kW Hybrids | EP12 IP65 battery Options | Floor/Wall Mounted | Outdoor | Heating Element | Ave Β£281/kW from Β£4,733.00 + VAT
Fully Installed Fox Hybrid Inverter Kits with EP12 Battery Storage Options Β  To view our full range of installed battery storage packages visit our collection page here To request a bespoke quote please complete our quotes form Nationwide Solar & Battery Installations Across the UK We provide professional solar and battery storage installations nationwide across most areas of the UK. Every system is fully certified and installed by qualified engineers, giving you peace of mind and long-term reliability. FOX EP12 Data Sheet FOX EP12 User Manual FOX ESS EP12 Installation Guide FOX Warranty Β  Please view ourΒ battery storage information page for sizing and selecting the right battery storage system for you. Fox ESS collection page for further information and documents Fox Hybrid Inverter Kits with EP12 Battery Storage Our Fox hybrid inverter kits come with 9–10.5kWh hybrid inverters paired withΒ EP12 IP65-rated battery storage, suitable for outdoor installation and equipped with a heating element for cold climates. These kits allow charging from both solar panels and the grid, making them a flexible solution for residential and commercial energy storage applications. ⚠️ Please note: EP series batteries are only compatible with the same model/size. EP Series Battery Features High-performance, scalable storage for a wide range of applications Supports 90% depth of discharge for maximum energy use Scalable up to 4 batteries for increased capacity Floor or wall mounting – compact and easy to install IP65 rating – suitable for outdoor use High voltage and high efficiency Integrated heating element for low-temperature environments 10-year warranty for peace of mind EP11 Battery Specifications Weight: 100kg Nominal Energy: 11,52Wh Depth of Discharge: 90% Nominal Voltage: 384V Maximum Charge/Discharge Current: 27A Recommended Charge Current: 13.5A Dimensions: 710 x 640 x 185 mm (W x H x D) Why Choose Fox Hybrid Kits with EP Batteries? Flexible hybrid charging – from solar panels or the electrical grid Reliable outdoor performance – IP65-rated and with heating element Scalable storage – expand capacity to meet growing energy needs Compact and easy to install – wall or floor mounted Long-term reliability – backed by 10-year warranty Β 

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