Discover the full range of 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
T: 020 7052 3472
Installed Fox 3.7/5/6kW Hybrids | EP6/12 IP65 battery Options | Floor/Wall Mounted | Outdoor | Heating Element | Built In Fire Suppressant | Gateway for full house back up or EPS | Ave £241/kW
from £3,531.00 + 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 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.
#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
Home back up is available for this system by utilising the EPS critical loads package. To add this to your order, following payment of the deposit, notify our team along with the requested information that EPS set up is required so the cabling route can be checked and can be added to your order wihout VAT.
Our 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
Installed Fox 7/8/9/10/10.5kW Hybrids | EP12 IP65 battery Options | Floor/Wall Mounted | Outdoor | Heating Element | Gateway for full house back up or EPS available | Ave £248/kW
from £4,792.00 + VAT
Fully Installed Fox Hybrid Inverter Kits with EP12 Battery Storage Options
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 K Series Hybrid Datasheet
FOX Warranty
Home Backup:
Home back up is available for this system by utilising the EPS critical loads package. To add this to your order, following payment of the deposit, notify our team along with the requested information that EPS set up is required so the cabling route can be checked and can be added to your order wihout VAT.
Fox ESS collection page for further information and documents
Fox Hybrid Inverter Kits with EP12 Battery Storage
Our Fox hybrid inverter kits come with 7–10.5kWh hybrid inverters paired with 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
Fox H1 3.7kW Hybrid Inverter with Fox ESS EP12 11.52kWh 384V Battery
£2,770.00 + VAT
Fox H1 3.7kW Hybrid Inverter + EP12 11.52kWh HV Battery Bundle
#2: FE-3.7-EP12-WG
FOX EP12 Data Sheet
FOX EP12 User Manual
FOX ESS EP12 Installation Guide
FOX Warranty
Fox H1 3.7kW Datasheet
Fox H1 3.7kW Manual
Fox H1 3.7kW Installer Guide
Fox H1 3.7kW G100 Certification
Fox Battery Sizing Guide
Fox H1 3.7kW Hybrid Inverter + EP12 11.52kWh HV Battery Bundle
Part No: FE-3.7-EP12-WG
The Fox H1 3.7kW Hybrid Inverter + EP12 11.52kWh High-Voltage Battery Bundle delivers a complete, high-performance solar and storage solution for residential properties. Combining intelligent energy management with scalable lithium storage, this system is designed to maximise solar self-consumption, reduce grid reliance, and provide backup capability.
This bundle pairs the advanced Fox H1 3.7kW Hybrid Inverter Gen 2 with the high-capacity Fox ESS EP12 11.52kWh 384V Battery, creating a fully integrated high-voltage storage system.
What’s Included in This Bundle
1 × Fox ESS EP12 11.52kWh 384V High-Voltage LFP Battery (with integrated heating element)
1 × Fox H1 3.7kW Hybrid Inverter with EPS – Single Phase Gen 2
This configuration is ideal for homeowners looking for a powerful yet compact hybrid storage system.
Fox ESS EP12 11.52kWh High-Voltage Battery
The EP12 is a high-voltage lithium iron phosphate (LFP) battery designed for enhanced safety, long cycle life, and strong discharge capability. With a total capacity of 11.52kWh, it provides substantial storage for medium to larger homes with higher evening consumption.
Key battery features include:
11.52kWh total capacity
384V high-voltage architecture
Integrated heating element for improved low-temperature performance
LFP chemistry for enhanced safety and thermal stability
Long lifecycle performance
Compatible with Fox high-voltage hybrid inverters
The integrated heating element ensures stable operation in colder UK climates, supporting year-round performance.
Fox H1 3.7kW Hybrid Inverter – Gen 2
The Fox H1 3.7kW Gen 2 is a single-phase hybrid inverter engineered for seamless integration between solar PV, battery storage, and grid supply.
Inverter highlights include:
3.7kW AC output (single phase)
Integrated battery management compatibility
EPS (Emergency Power Supply) functionality
High efficiency conversion
Dual MPPT for flexible string design
Remote monitoring via Fox Cloud platform
The EPS functionality allows essential circuits to remain powered during grid outages when correctly configured.
Intelligent Energy Management
Together, this bundle enables:
Increased solar self-consumption
Reduced electricity bills through smart charge/discharge control
Compatibility with time-of-use tariffs
Optional backup power capability (EPS configuration required)
The high-voltage architecture improves overall system efficiency while reducing current losses compared to low-voltage systems.
Ideal Applications
Residential solar + storage installations
Homes with medium to high evening electricity usage
Properties using flexible or time-of-use energy tariffs
Installations requiring future-ready hybrid capability
Key Technical Overview
Inverter
Output Power: 3.7kW (Single Phase)
Type: Hybrid with EPS
MPPT: Dual
Battery
Capacity: 11.52kWh
Nominal Voltage: 384V
Chemistry: Lithium Iron Phosphate (LFP)
Integrated Heating Element: Yes
Professional Installation Required
This system must be installed by a qualified electrician or certified solar installer. All installations must comply with current UK wiring regulations and local electrical standards.