ECONEXIS
Romford
Fox ESS EP12 11.52 kWh Home Battery
Fox ESS
Battery Storage
✓ Installation available
Price
From £2,790.00
Back to ECONEXIS
About this product
The Fox ESS EP12 11.52 kWh Home Battery is a high-capacity residential energy storage solution designed to help homeowners store electricity, increase their use of solar-generated energy and reduce reliance on expensive peak-rate grid electricity.
Manufactured by Fox ESS, a specialist in renewable energy storage technology, the EP12 combines advanced lithium iron phosphate (LiFePO4) battery technology with intelligent energy management capabilities to provide a reliable and flexible solution for modern households.
Available through ECONEXIS, an MCS-certified renewable energy installer based in Chadwell Heath, Essex, the Fox ESS EP12 can be integrated with compatible Fox ESS inverter systems to support solar energy storage and off-peak electricity charging.
Key Features & Benefits
- 11.52 kWh Battery Capacity: Provides substantial energy storage for households looking to use more of their self-generated electricity or take advantage of off-peak energy tariffs.
- Lithium Iron Phosphate Technology: Uses LiFePO4 battery chemistry, known for its thermal stability, durability and suitability for residential energy storage applications.
- Solar Energy Storage: Stores surplus electricity generated by compatible solar panel systems for use later in the day, including evenings and periods of reduced sunlight.
- Off-Peak Grid Charging: When configured with compatible equipment and electricity tariffs, the battery can charge during cheaper off-peak periods and discharge when electricity prices are higher.
- High-Capacity Home Storage: Suitable for households with greater electricity consumption, including properties with electric vehicles, heat pumps and other energy-intensive appliances.
- Intelligent Energy Management: Works with compatible Fox ESS inverter and monitoring systems to manage charging, discharging and household energy consumption.
- Modular Storage Options: Compatible system configurations may support additional battery capacity for households requiring increased energy storage.
- Flexible Installation: Designed for integration with supported residential energy systems, subject to site conditions and manufacturer installation requirements.
- Remote Monitoring: Compatible Fox ESS monitoring technology allows homeowners to view battery performance, energy generation and electricity usage through supported monitoring applications.
- Manufacturer Warranty: Fox ESS battery systems are offered with manufacturer warranty protection, subject to the applicable product registration, installation and warranty terms.
Advanced Home Energy Storage
The Fox ESS EP12 is designed to give homeowners greater control over how and when they use electricity.
When connected to a compatible solar PV system, the battery can store excess electricity generated during daylight hours instead of immediately exporting it to the grid.
Stored energy can then be used during the evening or other periods when solar generation is insufficient, potentially reducing the amount of electricity purchased from an energy supplier.
For households using time-of-use electricity tariffs, compatible system configurations can also allow the battery to charge during lower-cost periods and discharge when electricity rates are higher.
Actual savings depend on household electricity consumption, solar generation, battery settings, tariff structure and installation configuration.
Technical Specifications
- Manufacturer: Fox ESS
- Model: EP12
- Battery Capacity: 11.52 kWh nominal
- Battery Chemistry: Lithium Iron Phosphate (LiFePO4)
- Product Type: Residential high-voltage battery storage
- Application: Solar PV energy storage and compatible grid-charging systems
- Inverter Compatibility: Selected Fox ESS hybrid inverter systems
- Energy Monitoring: Compatible Fox ESS monitoring platform
- Installation: Professional installation required
Usable capacity, charging and discharging performance, inverter compatibility and other technical specifications should be confirmed against the manufacturer's documentation for the selected system.
Suitable Applications
The Fox ESS EP12 can be considered for a variety of residential energy requirements, including:
- Homes with existing compatible solar panel installations
- Households seeking to increase solar energy self-consumption
- Properties using off-peak electricity tariffs
- Homes with higher evening electricity demand
- Households planning future renewable energy upgrades
- Properties requiring additional storage capacity within a compatible Fox ESS system
Professional Supply & Installation Through ECONEXIS
ECONEXIS is an MCS-certified renewable energy installation business based in Chadwell Heath, Essex, providing solar panel, battery storage, EV charging and heat pump solutions across Essex, Bedfordshire, Hertfordshire, Buckinghamshire and Kent.
The company offers Fox ESS EP12 battery installations for both compatible existing systems and new installations requiring a hybrid inverter.
Customers can arrange a free survey to assess their existing electrical installation, inverter compatibility, battery location and energy storage requirements.
ECONEXIS handles installation, electrical certification and applicable renewable energy documentation, with final pricing confirmed in writing before work begins.
Installation Pricing
- Battery added to a compatible existing system: From £2,790 installed.
- Battery with a new hybrid inverter: From £4,290 installed.
Prices are based on ECONEXIS' published October 2026 pricing and include applicable installation costs. Final quotations depend on inverter compatibility, equipment selection, battery location, cable routing and existing electrical infrastructure.
Important Information: The advertised £2,790 starting price applies to battery installation with a suitable existing inverter. Customers requiring a new inverter should expect a higher installation cost. Energy savings and system performance vary according to individual property requirements.
