Fox ESS Battery Storage

Custom-designed Fox ESS battery systems for your home

Installed by trusted solar storage experts delivering optimal home energy performance. Expert assessment, state-of-the-art components, and no wasted energy.

Book a quote with expert solar consultants

Certified Quality

Forever Green Energy is trusted and certified by industry leaders, including Octopus and Tesla and boasts 13 years service from offices in Gloucestershire and South Wales.

Why Choose Forever Green Energy for Your Fox ESS system?

When you choose Forever Green Energy, you're not just getting a Fox ESS battery installation – you're investing in a completely bespoke energy solution designed by solar experts specifically for your home's requirements.

Fox ESS battery storage installation by Forever Green Energy

Expert Assessment & Design

Our experienced consultants spend time with you to understand your household's lifestyle and energy consumption patterns. Every Fox ESS battery system we design is perfectly tailored to your home's specific energy requirements, ensuring optimal performance without unnecessary overspend.

State-of-the-Art Components

We use cutting-edge solar components to create your custom Fox solar storage battery system, guaranteeing superior performance and longevity. The components we select are fully tested by ourselves, so we can confidently include them as a part of your system.

Our focus on delivering maximum efficiency and value ensures you achieve the highest return on your investment with Forever Green Energy.

No Waste, Maximum Value

As solar battery storage experts, we ensure you're not paying for overspecified elements that don't benefit your individual home's energy requirements.

We are not a national 'one size fits all' company, but a local, solar company with a precision approach who tailor every aspect of the solar battery system to match our customers lifestyle and energy needs.

What makes Fox ESS batteries a popular solar storage solution?

The Fox ESS EQ Battery series delivers exceptional energy density and cycle life and have been designed for the demands of modern British homes.

They have several standout solar storage features:

Fox ESS advanced lithium battery technology

Advanced Battery Technology

Fox ESS utilises state-of-the-art lithium iron phosphate (LFP) battery technology, delivering exceptional cycle life, stability, and safety compared to older battery chemistries.

Fox ESS modular scalable battery design

Modular & Scalable Design

Fox ESS systems are built to grow with your needs. Additional battery modules can be added over time, making it straightforward to increase storage capacity without replacing your entire system.

Fox ESS high efficiency energy conversion

High Efficiency

With round-trip efficiencies of over 97%, Fox ESS systems waste very little energy during charging and discharging — ensuring you retain the maximum value from your solar generation.

Fox ESS smart energy management system

Smart Energy Management

The Fox ESS intelligent management system continuously optimises how your home stores, uses, and exports energy — automatically adjusting to your household's patterns and energy tariff conditions.

Fox ESS versatile indoor and outdoor installation

Versatile Installation Options

Fox ESS batteries can be installed in a wide variety of domestic settings — wall-mounted indoors or in a garage. Compact IP65-rated units are also available for outdoor installation where internal space is limited.

Fox ESS battery safety protection features

Comprehensive Safety Features

Fox ESS systems include multi-layered protection: over-charge and over-discharge protection, short-circuit protection, thermal management, and fire suppression technology — all meeting rigorous UK and European safety standards.

Fox ESS competitive pricing and value

Competitive Pricing

Fox ESS delivers premium battery performance at a more accessible price point than some rivals, making high-quality energy storage available to more homeowners. Combined with 0% VAT, the value proposition is compelling.

Fox ESS home backup power during outages

Backup Power

In the event of a grid power cut, Fox ESS can automatically switch to backup mode, keeping your essential appliances running from stored solar energy. Protect your home from disruption when the grid goes down.

The combination of reliability, scalability, and cost-effectiveness makes Fox ESS an attractive option for residential solar storage.

0% VAT relief on Battery storage for homeowners

If you have been thinking about making your home more energy efficient, save money on your energy bills or power your home more cleanly, now is the perfect time to take that next step. Recently introduced legislation to encourage green energy initiatives provides tax relief on both solar panel system installations.

Save 20% VAT before the system is even installed.

Retro Fit

Fox ESS batteries work seamlessly with most existing solar inverters and can be retrofitted to existing systems. Not only that but the 0% VAT relief applies to retrofitting battery storage to an existing system.

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0% VAT relief on Fox ESS battery storage for homeowners

Fox ESS: compatible with smart home technology

Fox ESS future proofs your home by tapping into smart home platforms and through its integration optimises your energy performance.

Fox ESS compatible with Octopus Agile energy tariff

Octopus Agile Tariff

Fox ESS works intelligently with the Octopus Agile tariff, automatically charging your battery during the cheapest half-hour periods — sometimes at negative electricity prices — and discharging during expensive peak periods. This kind of smart scheduling can dramatically reduce your annual energy bills.

  • Charge when electricity is cheapest
  • Discharge during expensive peak hours
  • Fully automated — no manual adjustment needed
Fox ESS compatible with Hive smart home automation

Hive Eco Tech Integration

Fox ESS can integrate with the Hive smart home ecosystem, enabling your heating, hot water, and energy storage to work together in harmony. When your battery is full and solar generation is high, Hive can automatically divert surplus energy to your immersion heater or other appliances — eliminating waste entirely.

  • Divert surplus solar to heating & hot water
  • Unified smart home energy control
  • Eliminate waste from excess generation

Your Home's Energy System, Simplified with Fox Cloud V2.0

Experience next-generation energy management with Fox Cloud V2.0 – the intelligent monitoring and control platform that transforms your Fox ESS battery system into a fully automated energy management solution. Accessible from anywhere through your smartphone, the Fox Cloud V2 app optimises your energy usage in real-time.

Track your Fox Energy Solar System performance, energy savings, and system health from anywhere. The intuitive mobile app provides:

Fantastic ROI — From Cost to Profit in Under 8 Years

Most customers see payback periods of 5–8 years, with Fox ESS battery systems designed to operate effectively for 15+ years. The combination of competitive battery outlay, energy bill savings, grid services income, and increased property value provides excellent long-term returns.

Local Expertise You Can Trust

Our proven track record across Gloucestershire and the South-West demonstrates our commitment to excellence and customer satisfaction (5 star rating). We understand the challenges of British homes and tailor our Fox ESS installations accordingly.

Here’s what our customers think….

To find out more about what our commercial and residential customers think, look at our customer reviews and case studies.

View Case Studies

Have questions about solar panels?

Common questions about Fox ESS battery storage.