Smarter Energy starts at home.

Home Battery Storage Solutions

Take greater control of your electricity with EHE CUBIX 100 home battery storage systems. Store energy for later use, manage your electricity consumption and make the most of compatible solar panels or off-peak tariffs. Supplied and professionally installed by Efficient Home Energy across London.

12-Month Battery & Installation Guarantee Modular Battery Storage Professional Installation
EHE CUBIX 100 modular home battery storage system
EHE CUBIX 100
LiFePO4 Modular Battery Storage
The Benefits of Battery Storage

Take Control of Your Home’s Energy.

Home battery storage gives you greater flexibility over how and when you use electricity. Whether you have solar panels or want to take advantage of off-peak energy tariffs, discover how battery storage could benefit your home.

Reduce Electricity Costs

Store electricity when it is cheaper or generated by your solar panels, then use it when grid electricity is more expensive. Savings depend on your tariff and usage.

Make More of Solar Energy

Store surplus solar electricity generated during daylight hours and use it later in the evening, instead of exporting all your unused electricity.

No Solar Panels Required

A suitable battery system can charge directly from the grid during cheaper tariff periods. Solar panels are not essential for battery storage.

Monitor Your Energy

With compatible monitoring equipment, you can track battery charge levels, electricity usage and system performance through an energy monitoring interface.

Expandable Storage Capacity

The EHE CUBIX 100 uses modular 5.12 kWh battery units. Suitable configurations can provide additional storage capacity to meet your household’s energy needs.

Supplied & Installed by EHE

Our team handles your battery storage supply and installation, backed by a 12-month battery and installation guarantee, subject to our terms.

Ready to Take Control of Your Energy?

Speak to Efficient Home Energy about a battery storage solution tailored to your property and electricity usage.

Request a Free Quote →
Understanding Battery Storage

How Does Home Battery Storage Work?

Home battery storage allows you to store electricity for later use. Whether you generate your own solar energy or charge from the grid, the principle is simple.

Store Your Solar Energy

Instead of exporting all your unused solar electricity to the grid, a compatible battery storage system can save surplus energy for use later in the day.

Solar Panels Generate electricity
EHE CUBIX 100 Stores surplus energy
Your Home Uses stored electricity later
1
Generate

Solar panels produce electricity during daylight hours.

2
Store

Surplus electricity charges the battery through compatible equipment.

3
Use

Stored electricity can help power your home when solar output is lower.

Battery Storage Without Solar Panels

You do not need solar panels to benefit from home battery storage. With a compatible inverter and electricity tariff, you can charge your battery during cheaper periods and use the stored energy later.

National Grid Off-peak electricity
EHE CUBIX 100 Stores electricity
Your Home Uses stored electricity
1
Charge

Charge the battery during lower-cost tariff periods.

2
Store

The battery holds electricity until it is needed.

3
Save

Use stored electricity when grid prices are higher, potentially reducing costs.

Note: These diagrams are simplified. A complete installation includes a suitable inverter, protection equipment and energy controls. Actual savings depend on electricity tariffs, energy usage and system efficiency.

Introducing Our Battery Range

Meet the EHE CUBIX 100.

Discover flexible home energy storage with our EHE CUBIX 100 battery system. Designed around modular LiFePO4 battery technology, providing adaptable storage solutions for modern homes.

EHE CUBIX 100 home battery storage system
EHE CUBIX 100 Modular LiFePO4 Battery Storage
EHE BATTERY STORAGE

Powerful Storage. Flexible Capacity.

Each EHE CUBIX 100 battery provides 5.12 kWh of nominal energy storage. Multiple battery modules can be combined in compatible configurations, giving you the flexibility to select a system suited to your home’s electricity requirements.

Battery Technology LiFePO4
Energy per Module 5.12 kWh
Nominal Voltage 51.2V
Rated Capacity 100Ah
✓
12-Month Battery & Installation Guarantee Supplied and professionally installed by Efficient Home Energy. Subject to guarantee terms.

Choose Your Storage Capacity

Explore different nominal storage capacities using 5.12 kWh battery modules.

Selected Configuration
1 Battery Module
5.12 kWh
More Home Battery Storage Options

Meet the EHE 314Ah Lithium Battery.

Discover our high-capacity EHE lithium battery cabinet, designed for home energy storage applications and featuring LiFePO4 battery technology.

EHE Battery Storage EHE 48V 314Ah LiFePO4 lithium home battery cabinet
EHE Lithium Battery Range

EHE 48V 314Ah LiFePO4 Lithium Battery with Bluetooth & WiFi

Built for high-capacity energy storage, this battery cabinet combines LiFePO4 battery chemistry with an integrated display and connectivity features. It offers an alternative to modular rack-style batteries for properties requiring larger storage capacities.

Battery Voltage 51.2V
Battery Capacity 314Ah
Nominal Energy 16.08 kWh
Battery Chemistry LiFePO4
Connectivity Bluetooth & WiFi
Battery Design Cabinet System
✓ High-capacity home energy storage
✓ Integrated battery monitoring display
✓ Bluetooth and WiFi connectivity
✓ Professional installation by EHE

Which EHE Battery Is Right for You?

Choosing between our modular CUBIX 100 system and the EHE 314Ah battery cabinet depends on your electricity usage, available installation space, inverter compatibility and storage requirements. Our team can help assess which solution is more suitable for your property.

Find Your Ideal Battery

What Size Home Battery Do I Need?

Every home uses electricity differently. Explore an indicative battery capacity based on your household’s daily energy consumption and how much of that usage you would like to cover with stored energy.

Calculate Your Battery Size

Adjust the options below to explore suitable nominal storage capacities from the EHE CUBIX 100 range.

12 kWh
4 kWh 40 kWh
Not sure about your usage?

Check your electricity bill or smart meter for your daily kWh consumption. This provides a useful starting point when estimating battery storage needs.

Your Estimated Battery Capacity

Indicative Storage Size

10.24 kWh
Total nominal battery storage
2 CUBIX 100 Modules
7.2 kWh Daily Energy Target
Your estimated requirement exceeds the six-module example range. Please contact EHE for a tailored system assessment.
Get My Free Battery Quote →

This calculator provides an illustrative estimate only. It assumes 90% usable capacity and does not account for solar generation, electricity tariffs, inverter output, battery efficiency, peak demand or backup requirements. Actual system sizing and approved configurations must be confirmed following a technical assessment.

Battery Storage Installation Costs

Home Battery Storage From £2,700.

Make home battery storage more accessible with Efficient Home Energy. Our EHE CUBIX 100 battery storage systems start from £2,700 including VAT, with supply and installation included. Final pricing depends on your system requirements and property.

What Affects the Cost?

Every property has different energy requirements. These are the main factors we consider when preparing your quotation.

Battery Storage Capacity

The number of CUBIX 100 modules required will affect the overall equipment and installation cost.

Inverter & Equipment

A compatible inverter, protection equipment and energy management controls may be required.

Property & Installation

Cable routes, battery location, existing electrical infrastructure and installation access can influence the final price.

System Requirements

Solar integration, smart tariff controls and optional backup power arrangements can affect system design and costs.

EHE CUBIX 100 BATTERY STORAGE
Battery Supply & Installation From
£2,700 inc. VAT

Starting price for an entry-level installation. Final quotation subject to system specification and installation requirements.

Your Home. Your Energy. Your Battery System.

Get a personalised quotation for an EHE CUBIX 100 battery storage system, professionally supplied and installed by Efficient Home Energy.

✓ Free, no-obligation quotation
✓ Battery system tailored to your property
✓ Complete supply and installation
✓ 12-month battery and installation guarantee
Request Your Free Quote → Or call 0203 488 1899

Could Battery Storage Reduce Your Electricity Bills?

A home battery can help you make better use of surplus solar electricity or lower-cost off-peak energy. Potential savings depend on your electricity tariff, consumption patterns, system efficiency and installation costs. Our team can help you explore whether battery storage is suitable for your home.

Our Installation Process

Battery Storage Installation, Made Simple.

From your first enquiry to a fully commissioned battery storage system, Efficient Home Energy manages the complete supply and installation process.

STEP 01

Free Consultation

Tell us about your property, electricity consumption and whether you have solar panels. We’ll discuss your requirements and help identify a suitable storage solution.

STEP 02

System Assessment

We assess your electrical setup, installation location and storage requirements, then prepare a quotation covering the proposed equipment and installation.

STEP 03

Professional Installation

Our installation team fits the battery system and required electrical equipment, followed by the appropriate testing and commissioning.

STEP 04

Handover & Aftercare

We explain how your system operates, provide the relevant handover information and support your installation with our 12-month battery and installation guarantee.

Ready to Start Your Battery Storage Journey?

Contact our team to discuss your requirements and receive a free, no-obligation quotation.

Get Your Free Quote →
Frequently Asked Questions

Home Battery Storage Questions Answered.

Thinking about installing home battery storage? Explore answers to some of the most common questions about battery systems, electricity savings and installation.

Can I install a home battery without solar panels?

Yes. Home battery storage can be installed without solar panels. With a compatible inverter and electricity tariff, you can charge your battery using electricity from the National Grid.

For example, you may be able to charge during cheaper off-peak periods and use the stored energy when electricity prices are higher.

Is home battery storage worth it in the UK?

Home battery storage can be worthwhile for households that generate surplus solar electricity or have access to suitable time-of-use electricity tariffs.

Whether it is financially worthwhile depends on the installation cost, electricity consumption, tariff rates, battery efficiency and potential savings over time.

How long will a 5 kWh home battery last?

This depends on how much electricity your home is using at the time. For example, a battery with 5 kWh of usable energy could theoretically supply a constant 1 kW load for approximately five hours.

Actual runtime will be lower or higher depending on usable capacity, inverter efficiency and household demand. The EHE CUBIX 100 provides 5.12 kWh of nominal energy per module.

Can a home battery power my house during a power cut?

Some battery storage systems can provide backup electricity during a power cut, but this requires compatible equipment and a properly designed backup arrangement.

A standard grid-connected battery installation does not automatically provide backup power. If backup electricity is important to you, please discuss this with our team before installation.

What size home battery do I need?

The appropriate battery capacity depends on your daily electricity consumption, solar generation, electricity tariff and how much energy you want to store.

Our EHE CUBIX 100 battery modules each provide 5.12 kWh of nominal storage. You can explore indicative capacities using our battery sizing calculator .

How long do home battery storage systems last?

Home battery lifespan depends on battery chemistry, operating temperature, charging cycles, depth of discharge and how the system is managed.

The EHE CUBIX 100 uses Lithium Iron Phosphate (LiFePO4) technology. Its specific cycle-life and expected service-life figures should be confirmed against the manufacturer’s technical documentation.

Can I add battery storage to existing solar panels?

In many cases, battery storage can be added to an existing solar PV installation. The appropriate solution depends on your existing inverter, electrical configuration and the battery equipment selected.

Our team can assess the installation and advise on a suitable approach.

How much does home battery storage installation cost?

Installation costs vary depending on battery capacity, inverter requirements, electrical work and the complexity of the installation.

Efficient Home Energy provides personalised quotations for complete battery supply and installation. Contact us for a free quotation.

Do home batteries need maintenance?

Home battery systems generally require relatively little routine user maintenance, but they should be operated in accordance with the manufacturer’s instructions.

Keeping the installation area suitable, maintaining ventilation where required and checking for system alerts can help support safe operation.

What guarantee does Efficient Home Energy provide?

Efficient Home Energy provides a 12-month battery and installation guarantee on our supplied and installed CUBIX 100 systems, subject to our guarantee terms.

Our team is your point of contact for installation support and applicable guarantee enquiries.

Do I need permission to install a home battery?

Battery storage installations may require Distribution Network Operator (DNO) notification or approval, depending on the system and how it connects to the grid.

Planning requirements can also vary depending on the property and installation location. These matters should be checked during the installation assessment.

Can I expand my battery storage in the future?

Modular battery systems may allow additional storage capacity to be installed later, provided the battery management system, inverter and manufacturer requirements support expansion.

The EHE CUBIX 100 uses 5.12 kWh modules. Future expansion possibilities should be confirmed during system design.

Still Have Questions?

Our team can help you understand battery storage and explore a suitable system for your home.

Speak to Our Team →
Why Efficient Home Energy?

Your Home Energy, In Experienced Hands.

Choosing the right battery storage system is only part of the process. At Efficient Home Energy, we provide a complete supply and installation service, with professional electrical expertise and dedicated customer support.

NICEIC Registered

Efficient Home Energy is an NICEIC registered electrical contractor, providing reassurance in our electrical installation standards and workmanship.

Complete Supply & Installation

From battery system selection to installation and commissioning, we manage the complete process through one company.

12-Month EHE Guarantee

Our supplied and installed CUBIX 100 systems include a 12-month battery and installation guarantee, subject to our guarantee terms.

Tailored Battery Solutions

We assess your electricity consumption, existing electrical installation and property requirements to help identify an appropriate storage system.

London & Surrounding Areas

Based in London, we provide electrical and energy services across London and surrounding areas, including much of the M25.

Dedicated Customer Support

Our team is available to answer questions about your battery system, installation and applicable guarantee enquiries.

Ready to Explore Home Battery Storage?

Speak to our team about the EHE CUBIX 100 and request a free, no-obligation installation quotation.

Customer Feedback

Trusted by Customers Across London.

At Efficient Home Energy, we take pride in providing professional electrical, heating and energy services. Discover what our customers have to say about their experience with our team.

✓ Genuine Customer Feedback
✓ Professional Service
✓ London-Based Team
ExcellentGoogle star 1Google star 2Google star 3Google star 4Google star 54.8845 reviews
4.8Google star 1Google star 2Google star 3Google star 4Google star 5
Excellent845 reviews
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James Sesay
31 October 2026
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Engineer was on time and was very helpful
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James MAI
30 October 2026
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good
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janak shah
28 October 2026
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Efficient home energy co is amazingly very friendly and efficient and they have done very good service for me in every way and they have been very helpful and supportive
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Rodica Roman
22 October 2026
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The service was great this year which improved comparing with last year. The engineer text saying that was arriving in 30 minute which was assuring that will be coming. Last year I was waiting from 2 to 6 pm and noone came. When I called I have been told that the engeneer came but none was at home which was not true as I was inside the house the whole time. So I had to pay extra £50. But this year the service was improved so 5 stars well deserved.
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Peter Hedges
22 October 2026
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I used Efficient Home Energy to produce an EICR. Some remedial work was required which was done effectively by competent and polite technicians though we did have a payment issue that needed resolving and they were not able to replace the faulty sockets with similar looking parts.
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Mix Collection
22 October 2026
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Excellent communication and engineer turn up in time and done brilliant job. Thank you. Looking forward to working with you again.
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Gillian Sparks
21 October 2026
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PAT Test. I asked them to give me 30 mins notice so I could get to the rental property which they kindly did. They were quick and efficient, and emailed me the PAT certificate the next day.
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Shrina Tulsiani - nee Shah
21 October 2026
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Super efficient service and they even got a certificate out to us within 24 hours. Would highly recommend!
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Emilia Benjamin
21 October 2026
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Very efficient as their name suggests. Answer the phone with an actual person with no wait time, punctual and provided certificates within 24 hours of the service happening. Would recommend
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Saj Singh
20 October 2026
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I always use this company for servicing my rental. The bundle packages make it really affordable and their service is excellent.

Ready to Take Control of Your Energy?

Discover whether the EHE CUBIX 100 battery storage system is suitable for your property.

Request a Free Quote →
EHE Home Battery Storage

Take Control of Your Home Energy.

Discover our range of home battery storage solutions, professionally supplied and installed by Efficient Home Energy.

EHE CUBIX 100 modular battery storage system
Modular Battery Storage

EHE CUBIX 100

A flexible modular LiFePO4 battery storage system with 5.12 kWh nominal capacity per module. Expand your storage capacity with compatible configurations.

EHE 48V 314Ah LiFePO4 lithium battery cabinet
High-Capacity Battery

EHE 48V 314Ah LiFePO4 Battery

A high-capacity lithium battery cabinet offering 16.08 kWh nominal energy storage, with Bluetooth and WiFi connectivity.

Home Battery Storage Supply & Installation From
£2,700 inc. VAT

Complete battery supply and installation for eligible entry-level systems. Final pricing depends on battery capacity, equipment compatibility and property requirements. Ask our team for a personalised quotation.

Home battery storage installation across London and surrounding areas. System suitability and final costs are confirmed following assessment.