• Aerial image of solar panels on a roof

    Advanced Battery Technology For Your Home

    Transform your energy storage with our state-of-the-art battery technology. Engineered for safety and reliability, our systems provide the flexibility to meet your energy needs, ensuring you have power when you need it most.

  • Scalability

    This battery system can be expanded up to 23.04kWh by adding additional units in parallel, accommodating growing energy needs.

  • High Efficiency

    With a round-trip efficiency of at least 95%, it maximises energy use and minimises losses, ensuring more power is available for your applications.

  • Versatile Installation

    Rated at IP65, this battery can be installed both indoors and outdoors, offering flexibility in placement according to your space and preferences.

  • Compact Design

    Its compact dimensions (380mm x 640mm x 185mm) make it easy to integrate into various settings while maintaining a manageable weight of 51 kg.

  • Temperature Management

    Featuring a self-heating element, it ensures optimal charge and discharge capabilities even at low temperatures, enhancing overall performance.

  • Remote Monitoring

    Users can monitor their system through a smartphone app, allowing for easy management and oversight of energy usage.

Technical Specifications, Safety and Compliance

Smart Battery Storage from Fox ESS

Battery Type

Lithium Iron Phosphate (LiFePO₄), known for its safety and longevity.

Nominal Energy

Each unit provides 5.76 kWh of energy, with a depth of discharge of 90%, ensuring a significant amount of usable power.

Safety Standards

Compliant with IEC62619, ensuring reliability in operation and safety for users.

Ingress Protection

With an IP65 rating, the system is protected against dust and water, making it robust against environmental conditions.

Ev-Ready Battery For Modern Living

This system includes a cutting-edge fire protection module and LFP battery technology, ensuring maximum safety for your home.

  • Expandable Capacity

    Designed to accommodate energy needs, it can scale up to 15kWh, allowing flexibility as your requirements grow.

  • Long Lifespan

    With over 6,000 charge cycles, it offers a secure investment for lasting energy independence.

  • Ingress Protection Rating

    With an IP65 certification, it provides robust protection against dust and water, making it suitable for various environments.

  • Natural Cooling System

    Utilises natural convection for efficient temperature management, enhancing performance and longevity.

  • Seamless Integration

    Easily connects with existing solar systems without the need for an additional inverter, simplifying installation and reducing costs.

  • User-Friendly Applications

    Compatible with mobile apps for easy monitoring and management of energy usage.

Smarter battery performance with levelise

Levelise is an intelligent software that helps your battery work more efficiently over time.

Image of HPO working on a battery set up

It automatically manages how your battery charges and discharges, helping to balance usage, reduce unnecessary strain, and support long-term battery health, all without you needing to do anything.

By helping the battery work smarter, Levelise supports reliable performance and makes the most of your stored energy day to day.

Battery storage allows excess solar energy to be stored for use later, helping maximise savings, reduce reliance on the grid, and give greater control over how energy is used in the home.

Battery benefits:

  • Store unused solar energy generated during the day and use it in the evening or during peak times, reducing the need to purchase electricity from the grid.
  • Reduce electricity bills and protect against rising energy costs by using stored energy instead of relying on suppliers.
  • Increase energy security with systems that can provide backup power during outages, keeping essential appliances running when needed.

1

Solar Panels Capture Energy

Battery storage systems capture excess electricity generated by the solar panels during the day.

solar panel

2

Battery Is Used When Solar Generation Is Low

Instead of exporting this energy back to the grid, it is stored in the battery and automatically used when solar generation is low, such as in the evening or on cloudy days.

House with solar components fitted

Two simple ways to go solar

Costs vary depending on system size and storage capacity, with tailored solutions designed to suit different households and energy needs. Battery systems are available in the monthly payment plans or as an upfront purchase.

  1. HPO FLEX

    Most popular

    Monthly Plan

    From £75

    Monthly payments

    Price varies, apply for your personal quote. Offers are subject to status and finance agreement. The plan is provided in partnership with Hometree Finance.

    HPO Flex is designed to make solar more accessible by removing the need for a large upfront payment. With this option, the cost of your solar system is spread into manageable monthly payments, allowing you to start your solar journey without paying anything upfront.

    • Unlimited system repairs
    • Flexible from 5-25 years
    • Replacement protection
    • Trusted engineer install
    • No callout fees or excess
    Explore Monthly Options

  2. HPO DIRECT

    No monthly costs

    Upfront Payment

    From £9,531

    HPO Direct is our pay-upfront option for customers who prefer to purchase their solar system outright. This option allows you to pay the full cost of your system in one payment, with no ongoing monthly repayments.

    • Prefer to pay upfront
    • Want full ownership from day one
    • Don’t require a monthly payment option
    Explore Upfront Options

Use the calculator below to estimate the cost of solar

Up To 3500kwh 9500kwh+

Selected annual usage: Up To 3500kwh

Panels

6

Cash price

£9,531 – £10,942

Monthly price

£75 – £85

Monthly price is based on a 25-year plan.

These figures are just estimates and are based off a perfect south facing roof with no shading.

Frequently Asked Questions

  • What is a solar battery?

    A solar battery stores the extra electricity your panels generate during the day, so you can use it later instead of sending it back to the grid.

  • Do I need a battery with my solar system?

    Not necessarily. Your system will still work without one, but a battery helps you use more of your own energy instead of buying it back in the evening.

  • Can I use solar power at night?

    Yes, with a battery you can. It stores energy during the day so you can use it when the sun isn’t shining.

  • Is a solar battery worth it?

    It depends on your usage, but many homeowners choose a battery to reduce how much electricity they buy from the grid and get more value from their system.

  • Can I add a battery later?

    Yes, in most cases you can add a battery to your system at a later date.

Ready to see if solar could work for your home?

Find out what your monthly plan could look like in just a few steps.