Eleven Energy Sodium Battery Storage

As solar panel installations continue to grow across the UK, battery storage is becoming an essential part of modern home energy systems. At GreenGenUK, we work with a range of leading battery manufacturers and are now installing Eleven Energy sodium battery systems — an exciting new technology designed to store renewable electricity safely, efficiently and sustainably.

Eleven Energy has developed a next-generation sodium-ion battery system, offering homeowners a reliable alternative to traditional lithium batteries. The system allows you to store excess solar energy generated during the day and use it when your home needs it most — reducing reliance on the grid and lowering electricity bills.

What Makes Eleven Energy Batteries Different?

Most home batteries use lithium-ion technology, but Eleven Energy systems use sodium-ion chemistry, which offers a number of advantages for residential energy storage.

Sodium is an abundant element that can be sourced sustainably from seawater and other widely available materials, making it a more environmentally friendly alternative to lithium-based batteries.

Sodium batteries also perform extremely well in varying temperatures and have improved safety characteristics compared with conventional lithium systems.

Key Features of Eleven Energy Battery Systems

Eleven Energy systems combine intelligent energy management with scalable battery storage to help households maximise the benefits of solar power.

Modular Battery Storage

Each battery module stores 4.5 kWh of energy, and systems can be expanded as your energy requirements grow. Up to eight battery packs can be connected to a single inverter, providing more than 33 kWh of usable storage capacity.

This modular design makes Eleven systems suitable for a wide range of homes — from small solar installations to larger properties with higher electricity demand.

High Performance Hybrid Inverter

The Eleven hybrid inverter integrates solar generation, battery storage and grid connection into one system.

Typical specifications include:

• Up to 9 kW solar input
• 6 kW continuous power output
• Dual MPPT solar inputs for improved system performance
• 98% power conversion efficiency

The system can also switch between grid-connected and backup operation in milliseconds, helping maintain power during outages.

Smart Energy Management

Eleven Energy systems include a built-in energy management platform that monitors generation, consumption and battery usage in real time.

The intelligent software can:

• Optimise battery charging based on solar production forecasts
• Automatically export electricity when prices are high
• Integrate with smart electricity tariffs
• Monitor home energy usage through a mobile app

The system can also integrate with other smart home devices such as EV chargers, heat pumps and immersion heaters, helping homeowners maximise the value of their renewable energy system.

Built for Real-World Installations

Eleven Energy batteries are designed for flexible installation, with options for both indoor and outdoor mounting.

Key installation benefits include:

• Operating temperature range of -20°C to 55°C
• Indoor or outdoor installation options
• IP-rated enclosures available
• High charge and discharge rates up to 100A

This makes the system particularly well suited to UK homes where batteries are often installed in garages, lofts or outdoor locations.

Pairing Eleven Energy with Solar Panels

When combined with solar panels, a battery system allows homeowners to store the electricity generated during the day and use it in the evening or overnight.

This can help:

• Increase self-consumption of solar electricity
• Reduce reliance on imported grid power
• Protect against rising electricity prices
• Improve the overall efficiency of your renewable energy system

At GreenGenUK, we design systems that combine solar PV, battery storage and smart energy management, helping homeowners take control of their energy use.

Installing Eleven Energy Batteries with GreenGenUK

GreenGenUK has installed thousands of renewable energy systems across Cornwall, Devon and the South West. Our experienced design and installation teams ensure every system is properly sized, professionally installed and fully commissioned.

As an independent installer, we work with multiple battery manufacturers so we can recommend the right system for each property.

Eleven Energy is an exciting addition to our battery portfolio, offering homeowners access to a new generation of sustainable energy storage technology.

Thinking About Adding Battery Storage?

If you are considering solar panels or want to add battery storage to an existing system, our team would be happy to help.

We can provide advice on:

• Solar panel and battery system design
• Retrofitting batteries to existing solar installations
• Smart tariffs and energy optimisation
• Future-proofing your home energy system

👉 Get in touch with GreenGenUK today for a personalised quotation.