Asked Questions

Do you have questions about LUX AC Solar Battery Storage or just interested in what other people have asked regarding Home Solar lithium battery storage systems?

Below are some of the Solar Battery Storage and Solar Battery Back Up Products frequently asked questions that we at Home Energy Group get asked

Why Solar Battery Storage?

A: The UK needs a secure and reliable and balanced electricity supply 24 hours a day.

We also need to make more use of renewable energy resources, such as solar and wind, to reduce our reliance on non-renewable fossil fuels such as oil and gas however, it’s just not that easy to just switch over to using solar and wind for all our energy needs, WHY? The sun doesn’t always shine and the wind doesn’t always gust meaning that the energy supply can be intermittent.

The solution to this problem lies in battery storage. By storing the energy generated from solar and wind power in reliable, powerful batteries, we can have a power supply that is available 24/7: – without costing the Earth.

Why Should I Invest In Solar Battery Storage

A: A battery System that you own is the answer to greater grid independence, reduced electrical costs and in the event of a power cut the energy storage system will restore critical loads to the home.

Battery storage will complement your solar PV system by storing excess solar energy in the day that usually would be sent to the grid, instead the FREE energy that was stored during the day can be used in the evening for FREE.

Can I change my Solar Inverter Into a battery Storage Inverter?

A: YES, Our LUX hybrid battery storage system is compatable with all solar panels so is ideal with retro-fit applications, we can replace your ageing inverter with our state of the art hybrid which will work with your existing solar installations from 3kWp – 4kWp solar PV systems and comes with multi point tracking as standard meaning our hybrid will work with multiple roof installations.

How Many Batteries Can I Have?

A: Our LUX battery storage systems are stackable from 2.4kWh to 19.2kWh, each battery compartment holds two battery units of 2.4kWh, So just connect and grow your system from 2.4kWh / 4.8kWh / 7.2kWh / 9.6kWh / 12.0kWh / 14.4kWh / 16.8kWh / 19.2kWh

What Are The Benefits & How Much Will I Save?

A: The benefits a household will receive will depend on a number of factors including your location, the size of your solar power system and your energy plan.

Our battery storage system can store excess solar-generated energy from a solar system, or energy sourced from the grid, for use at a later time.

The stored energy can be used for FREE instead of importing electricity from the grid, so depending on your electricity tariff, you may be able to take advantage of using your battery when prices are highest.

How Much Warranty Do I Get?

A: Both the LUX Power products & Pylon Tech Batteries are provide a 10 year warranty.

How Long Do Batteries Last?

A: Our battery Packs are guaranteed to last a minimum of 6000 cycles, So based on one full cycle per day this would be 16 years however it would be very rare that a typical home would do a full cycle on a day to day basis, because of short days in the winter and very long days of daylight in the summer a typical cycle pattern per year would be around 260 full cycles per annum meaning the expected lifetime would be around 23 years.

Can I Replace My Batteries At The End Of Their Lifespan?

A: YES, At the battery cells end of life, we can replace your modules at a fraction of today’s lithium ion costs without taking the enclosure, inverter and conduit off the wall.

The system is designed for ease of service and future upgrades making the system future proof.

How Does Battery Storage Work?

A: Battery storage’ lets you store the surplus solar electricity, instead of exporting it to the grid.


Battery storage lets you use more of your solar PV system’s output ( ‘increases ‘self-consumption’). This reduces the amount of grid electricity you need to buy, saving you money on your electricity bill.


During the day:

• the solar PV system generates solar electricity

• the battery storage system will check if all the generation is being used to power your lights and appliances

• if you’re not using all the electricity that the solar PV system is generating, then the system will ensure that any surplus energy is used to charge the battery

• once the battery is fully charged, if there is still more solar electricity being generated, this will be exported to the grid


In the evening or at time of low solar generation:

• the solar PV panels have a reduced output

• the battery system can discharge the stored electricity, providing you with renewable-generated electricity at no additional cost

• once the battery is discharged, if you need to use more electricity, you buy it from your electricity supplier

• depending on what energy plan you are on, our system can be programmed to charge from the grid at of peak times.

Can I Add Multiple Batteries?

A: Yes: System sizing systems is important to enable yourself to get the best return of investment back within the quickest time frame, So its slightly more complicated than just adding batteries.

Typically, an average home uses around 12.5kWhs per day or 4,500kWhrs per annum.

Most homes that have existing solar PV have from 2.0kWp to 4kWp installed which can generate anything from 1800kWhrs to 4000kWhrs per annum which means there is only so much generated energy you can store.

DECC (department of energy and Climate Change) tell us that we typically only use between 20% and 30% of rooftop solar energy, with intelligent system sizing we can bring the level of self-consumption up to 70% / 80% and the levels of imported energy to a bare minimum.

Can I Charge My Batteries From The Grid?

A: Yes, Our system is future proof and can be set to be enable to charge the battery’s with energy delivered from the grid at off peak times, and automatically transfer to battery power at peak times, in the event that TOU’s (time of use tariffs) become popular.

Where Are Batteries Installed In My Home?

A: The battery storage system is designed to be wall mounted or ground mounted, Our certified installers will talk you through appropriate locations during a pre-installation site inspection at you home, nothing will be installed without full and final approval by the householder.

Do Batteries Work In A Power Cut?

A: YES our both our LUX Power & Quantum Plus Power Pod system will restore critical loads, automatically in the event of a power cut, providing there is sufficient back-up. The Quantum Plus Power Pod products have the fastest switch over  response time in the UK

I’m Off Grid! Can I Have Battery Storage

Our Quantum Plus Power Pod is for on grid customers only.

If you are OFF Grid then our LUX power Hybrid system is just for you.

Our battery storage system will work ON or OFF Grid “Just add Solar”

Will Battery Storage Reduce My Carbon Footprint?

A: Yes, by storing solar energy and using it in the evening you are offsetting what in most cases are fossil fuel generated electrons. If you don’t have solar then the answer is still yes as the Agile energy you are using is 100% Renewable Green energy.

I Don’t Have Solar! Can I Have Battery Storage?

YES YOU CAN. The fantastic thing about the Quantum Plus Power Pod is that you don’t need Solar as this system works as an independent standalone battery storage system. This system allows you to take full advantage of “Agile” renewable energy from the grid.

How Does The Quantum Plus Power Pod Work?

The Quantum Plus Power Pod works by tracking tomorrows energy rates Published by your energy providers the day before. The Quantum Plus Power Pod is programmed to charge at the cheapest periods published by your energy providers. That cheap energy can then be used when the energy tariff is high. Please note to check with your energy provider that they offer an Agile Tariff, If they don’t we can help you swap to an energy provider that does offer this services.

How long is the warranty?

The Quantum Plus Power Pod Controllers and Quantum Plus batteries come with 10 years warranty as standard. The Quantum controller can be extended to 20 Years warranty at an additional cost.

How Many Controllers Do I Need?

The number of controllers you require is down to your energy usage and peak demands. Our Energy advisors will go through your previous annual years energy bill to work out the right size system.

Where do you Install the system?

Ideally the closer to the fuse board the better but this is not essential, the key is space.  These systems can go where ever you like providing we can run a electrical supply from your fuseboard to the system…… Always think about cabling

What Is Agile Tariff?

Agile Tariff is where an energy provider tracks daily wholesale energy prices and provides the next days pricing by 5pm the day before. So you can plan your usage accordingly

What is the maximum Charge and Discharge Rate?

The Maximum charge and discharge rate depends on how many controllers and batteries you have. The lowest system we provide is 3.6Kw charge & discharge rate with 2 to 8 batteries at 2.4Kw each. Every time you add an additional controller your charge and discharge rate goes up by another 3.6Kw, So 2 controllers you can achieve 7.2Kw at one time.

Does The Quantum Plus Power Pod Charge Automatically?

YES. The Quantum Plus Power Pod is the only system that can automatically track tomorrows energy prices and charge the batteries without you lifting a finger. No other system in the UK can do this.


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