The ECONEXIS Plus – 4.7 kWp Solar & 11.52 kWh Fox ESS EP12 Battery Package is a complete residential solar energy and battery storage system designed for homeowners seeking greater control over their electricity generation, storage and consumption.
Professionally supplied and installed by ECONEXIS, an MCS-certified renewable energy installation specialist, the Plus package combines 10 high-efficiency 470W all-black solar panels with a Fox ESS EP12 11.52 kWh home battery, providing a substantial renewable energy solution for modern households.
With 4.7 kWp of solar generation capacity and 11.52 kWh of nominal battery storage, the Plus package is particularly suited to homes with higher evening electricity consumption, electric vehicle charging requirements or households looking to take advantage of lower-cost overnight electricity tariffs.
Compared with ECONEXIS's Smart package, the Plus system provides twice the nominal battery storage capacity while retaining the same ten-panel solar array.
Key Features & Benefits
- 4.7 kWp Solar PV System: Ten 470W solar panels provide a combined peak generation capacity of 4,700 watts under standard test conditions.
- 11.52 kWh Fox ESS EP12 Battery: High-capacity residential battery storage designed to retain surplus solar electricity for use later in the day.
- Premium All-Black Solar Panels: Modern photovoltaic panels designed to deliver renewable electricity generation with a discreet, contemporary rooftop appearance.
- Solar Generation & Energy Storage: Combines rooftop electricity generation with battery storage, helping households make greater use of their own solar energy.
- Higher Battery Capacity: Offers twice the nominal storage capacity of the Fox ESS EP6 battery included in ECONEXIS's Smart package.
- Off-Peak Electricity Charging: Compatible system configurations can charge the battery during lower-cost electricity tariff periods for use when grid prices are higher.
- Suitable for Higher Electricity Demand: Particularly relevant to households with significant evening consumption, electric vehicles or plans to introduce additional electrical appliances.
- Lithium Iron Phosphate Technology: The Fox ESS EP12 uses LiFePO4 battery chemistry, recognised for its thermal stability and suitability for residential energy storage.
- Intelligent Energy Monitoring: Compatible monitoring technology allows homeowners to track solar generation, battery charge levels and household electricity consumption.
- Expandable Battery Storage: Additional compatible Fox ESS EP12 battery units may be installed where supported by the inverter and system configuration.
- Complete Professional Installation: Includes solar panel installation, battery installation, electrical connections, testing and system commissioning.
- MCS-Certified Installation: ECONEXIS provides the applicable renewable energy certification and installation documentation.
- DNO Paperwork Included: Relevant Distribution Network Operator applications or notifications are handled as part of the installation.
- Bird Protection Mesh: Included around the solar array to discourage birds from nesting beneath the panels.
- 10-Year Workmanship Warranty: ECONEXIS provides a workmanship warranty for its installation services, subject to applicable terms.
Generate, Store & Manage Your Own Electricity
The ECONEXIS Plus package is designed to help homeowners make better use of the electricity generated by their rooftop solar panels.
During daylight hours, the ten photovoltaic panels convert sunlight into electrical energy. A compatible inverter converts this electricity into AC power suitable for use throughout the home.
Electricity generated by the system can be consumed directly by household appliances, lighting and other electrical equipment.
When solar generation exceeds immediate household demand, surplus electricity can be directed into the Fox ESS EP12 battery, subject to the battery's available capacity and operating settings.
The stored energy can then be used during evenings, overnight or other periods when solar generation is insufficient.
By combining solar generation with a larger-capacity battery, homeowners may reduce the amount of electricity purchased from the grid during peak-rate periods.
Actual savings depend on household electricity usage, solar generation, electricity tariffs and system configuration.
Fox ESS EP12 – 11.52 kWh Home Battery Storage
At the centre of the Plus package is the Fox ESS EP12, a high-voltage residential energy storage battery designed for use with compatible Fox ESS inverter systems.
The EP12 provides 11.52 kWh of nominal energy storage capacity, offering substantial flexibility for households with higher electricity consumption.
Its lithium iron phosphate battery chemistry is designed for reliable residential energy storage, while compatible Fox ESS monitoring and energy management systems allow homeowners to manage charging and discharging behaviour.
The EP12 can store electricity generated by the solar panels during the day and release it when required.
It can also support charging from the electricity grid during lower-cost tariff periods when the installation is appropriately configured.
For households considering future energy requirements, compatible EP12 systems can support additional storage capacity, subject to manufacturer specifications and inverter limitations.
Technical Specifications
Solar PV System
- Package Provider: ECONEXIS
- Package Name: Plus
- System Type: Residential solar photovoltaic installation with battery storage
- Total Solar Capacity: 4.7 kWp
- Number of Solar Panels: 10
- Individual Panel Rating: 470W
- Total Rated Solar Output: 4,700W
- Panel Appearance: All-black
- Solar Panel Manufacturer: Confirmed during the installation design
- Inverter: Compatible hybrid inverter included
- Energy Monitoring: Compatible solar and battery monitoring application
Battery Storage
- Battery Manufacturer: Fox ESS
- Battery Model: EP12
- Nominal Battery Capacity: 11.52 kWh
- Battery Chemistry: Lithium Iron Phosphate (LiFePO4)
- Battery Type: High-voltage residential energy storage
- Inverter Compatibility: Selected compatible Fox ESS inverter systems
- Solar Charging: Supported through the compatible inverter
- Off-Peak Grid Charging: Supported with suitable system settings and electricity tariffs
- Additional Battery Capacity: Possible with compatible equipment and system configurations
- Manufacturer Warranty: 10 years, subject to Fox ESS warranty conditions
Installation & Certification
- Professional Installation: Included
- Electrical Testing & Certification: Included
- MCS Certification: Included
- DNO Application or Notification: Included where applicable
- Standard Scaffolding: Included for qualifying one- to three-storey installations
- Bird Protection Mesh: Included
- System Monitoring Setup: Included
- Handover Documentation: Included
- Installation Workmanship Warranty: 10 years, subject to terms
The final panel manufacturer, inverter model, battery positioning and electrical configuration are confirmed during the property assessment and system design.
Intelligent Charging & Off-Peak Electricity Tariffs
One of the main advantages of combining a 4.7 kWp solar array with an 11.52 kWh battery is the flexibility to manage electricity consumption across different times of day.
During periods of strong solar generation, surplus electricity can be stored for later use.
When solar generation is limited, the system can use stored electricity to supply household demand, reducing the need to purchase electricity from the grid.
For customers using suitable time-of-use electricity tariffs, compatible Fox ESS systems can also be configured to charge during cheaper overnight periods.
This allows homeowners to use lower-cost stored electricity during more expensive daytime or evening periods.
The financial benefit depends on the difference between tariff rates, battery efficiency, household electricity demand and how frequently the battery is charged and discharged.
Suitable for Electric Vehicle Households
The ECONEXIS Plus package is particularly relevant to households with electric vehicles or plans to introduce EV charging.
An electric vehicle can significantly increase household electricity consumption, particularly where charging takes place at home.
The larger Fox ESS EP12 battery provides additional energy storage capacity that may help households manage electricity usage alongside EV charging requirements.
For customers looking to install a dedicated home charger, ECONEXIS also supplies and installs compatible EV charging equipment.
A home EV charger is not included in the Plus package's advertised starting price and would be quoted separately.
Expandable Home Energy Storage
The Fox ESS EP12 is designed for compatible modular energy storage configurations.
For homeowners whose electricity requirements increase over time, additional compatible EP12 units may provide a route to increased battery capacity.
For example, two 11.52 kWh EP12 units would provide a combined nominal capacity of 23.04 kWh, subject to supported system configurations.
Additional battery units, installation work and any necessary inverter upgrades are not included in the standard Plus package.
Who Is the ECONEXIS Plus Package Suitable For?
The Plus package may be particularly suitable for:
- Family homes with higher evening electricity consumption
- Households seeking substantial solar battery storage
- Properties with electric vehicles or planned EV charging
- Homeowners considering future heat pump installations
- Households using time-of-use electricity tariffs
- Customers wanting greater flexibility between solar and grid charging
- Properties with suitable roof space for ten 470W solar panels
- Homeowners looking for a complete solar and battery installation from a single provider
The most appropriate system size depends on the property's roof dimensions, orientation, shading, structural condition and household electricity usage.
Professional Solar & Battery Installation Through ECONEXIS
ECONEXIS is an MCS-certified renewable energy installation company serving customers across Bedfordshire, Hertfordshire, Buckinghamshire, Essex and Kent.
The company specialises in solar photovoltaic installations, residential battery storage, electric vehicle charging and renewable energy solutions.
Every Plus package is designed around the customer's property, existing electrical infrastructure and energy requirements.
The installation service includes:
- Initial assessment of roof suitability and electricity consumption
- Solar panel layout and system design
- Selection of compatible inverter equipment
- Installation of ten 470W all-black solar panels
- Installation of the Fox ESS EP12 11.52 kWh battery
- Electrical connections, testing and commissioning
- Relevant DNO application or notification
- MCS and electrical certification
- Setup of compatible system monitoring
- Handover documentation and operating guidance
ECONEXIS offers a free roof design and written quotation, allowing customers to review the proposed installation and final price before proceeding.
Installation Pricing
ECONEXIS Plus – 4.7 kWp Solar & 11.52 kWh Fox ESS EP12 Battery Package: From £7,990 fully installed.
The advertised starting price includes:
- 10 × 470W all-black solar panels
- Fox ESS EP12 11.52 kWh home battery
- Compatible hybrid inverter equipment
- Standard professional installation
- Qualifying scaffolding
- Electrical testing and certification
- MCS certification
- Applicable DNO paperwork
- Bird protection mesh
- Solar and battery monitoring setup
- System handover documentation
- 10-year workmanship warranty
- Applicable 0% VAT for qualifying residential installations
The advertised price is based on installation across one roof elevation with a single scaffold lift.
Additional costs may apply for multiple roof elevations, unusual scaffolding arrangements, longer cable runs, consumer unit replacements, backup power equipment or other non-standard installation requirements.
ECONEXIS assesses these requirements during the survey and confirms the final price in writing before installation.
Comparing ECONEXIS Solar Packages
The Plus package offers increased battery storage compared with ECONEXIS's Essential and Smart systems.
- Essential – From £4,990: 4.7 kWp solar installation with ten 470W panels and no battery.
- Smart – From £6,890: 4.7 kWp solar installation with a 5.76 kWh Fox ESS EP6 battery.
- Plus – From £7,990: 4.7 kWp solar installation with an 11.52 kWh Fox ESS EP12 battery.
For an additional £1,100 compared with the Smart package's advertised starting price, the Plus package provides twice the nominal battery storage capacity.
This makes it an option worth considering for households with higher electricity consumption or greater overnight energy storage requirements.
Important Information: The 4.7 kWp solar rating represents peak output under standard test conditions, not guaranteed continuous generation. The Fox ESS EP12's 11.52 kWh capacity is nominal; actual usable capacity depends on manufacturer specifications and operating conditions. Battery backup during grid outages is not automatically included and requires suitable equipment and installation arrangements. Electricity savings vary according to system design, roof conditions, weather, electricity tariffs and household consumption.