Solar Batteries & Storage

Store your solar energy when the sun isn’t shining with top-of-the-line solar storage batteries.

Energy Storage with the Future in Mind



Our battery products come with an unbeatable warranty, superior craftsmanship, and seamless integration with solar for cleaner, healthier living.


Next Level Home Battery Tech

ZEN's intelligent battery solutions store and manage energy to power your home in the cleanest, most efficient way.


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Solar panels are a fantastic start to a solar system, but if you don’t use the power, it goes wasted. That’s where a solar battery comes in.

Solar batteries store unused or excess energy from your solar system to use when the sun isn’t shining or during periods of high demand. It reduces the amount of power you draw from the grid even further and keeps you running on your own, free power for longer.

Once the solar panels have generated the power, it’s fed through a solar inverter. Depending on the type of solar system you have set up (such as a hybrid, an AC-coupled system, or a system with a solar diverter), some of this power may be diverted to charge the batteries.

When it’s needed, the batteries can then release this stored power to power your home. This includes at night, on a cloudy day, or even during a blackout.

A solar battery storage system allows you to enjoy your solar power for longer.

During blackouts, solar battery storage systems ensure you don’t have to eat a cold dinner in the dark.

During periods of high demand, solar batteries allow you to avoid drawing on the grid and paying for additional power if your panels can’t keep up with real-time requirements.

And when the sun isn’t shining, solar batteries ensure you can keep enjoying the benefits of clean, green power, even at night or on cloudy days.

It’s your energy, why not make the most of it?

The overall costs of your solar batteries will vary depending on a variety of factors, including:

  • Your energy demands
  • Your storage demands
  • Your current solar system

For more information and a no-obligation quote, get in touch with the team at ZEN Energy below.

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solar inverters brands

Goodwe Logo


Manufactured for durability and longevity under modern industrial standards, the GoodWe DNS series offers high efficiency and class leading functionality.

Based on its single-phase residential PV inverter range, GoodWe ranked 4th in global shipments in 2017.

Ability to AC couple to a battery - i.e. capable of adding a battery to the system in the future, but will require additional components and won't be a fully managed solution.

Monitoring via the GoodWe application and web portal.

Huawei Logo


The ability to connect smart home appliances, providing the ability to run appliances and adopt the Internet of Things (IoT) technology as it becomes more commonplace.

Easy to use application and web monitoring.

DC Optimisers (where and as required) - this technology allows for individual panel operation, ensuring that panels affected by shade do not impact on the overall performance of the system.

See the Huawei hybrid inverter brochure showing the integrated system.

Plug and Play battery solution, see the high voltage model in the LG Resu lithium-ion energy storage range

Redback Logo


RedBack Generation 2 hybrid inverter with the ability to function on-grid (connected to the public power network) or off-grid in the event of a power outage

Capable of running up to 14.2kWh of Pylontech lithium-ion battery capacity within the RedBack Generation 2battery enclosure, which sits below the inverter.

UPS (Uninterruptible Power Supply) to ensure the seamless delivery of electricity to your essential loads in the event of a power outage, prioritising what you need and want when the grid goes down, and allowing the conservation of battery power and ongoing operation in off-grid mode.

Electrical relay controls ,enabling the on/off control of various appliances within the home.



The SP PRO series of bi-directional inverter chargers is one of the most flexible and intelligent available in the market today. A modular approach can handle systems up to 240kW in 20kW blocks, whilst using sophisticated communications can manage up to 480kW of AC Coupled PV.

Battery Voltages of 24V, 48V and 120V are accommodated. Additionally, by incorporating unlimited DC Coupled solar, wind, backup generator or a grid supply, our ethos of never being without power is always met.

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Solar battery brandS

PylonTech Logo


We work with PylonTech lithium-ion solar batteries.

Modular design gives you the power of choice of capacity.

Simple buckle fixing and rack mounting capability minimise installation time and cost.

Compact and fashionable design fits in the home environment.

Pairs with the Redback hybrid system and Fronius-Selectronic off-grid system.

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power monitor brands

Smappee Logo


The Smappee Infinity provides an all-in-one solution for monitoring voltage and distributing load across solar panels, electric vehicles, and other home or building appliances through a cloud-based interface. With the addition of new phase measurement capabilities, the Infinity modules and gateway can collect more data, ultimately reducing expenses for both residential and commercial systems.

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solar panel brands

Longi Solar Logo


As the world's premier provider of Solar PV Solutions, LONGi's expertise in solar wafers, cells, and modules reflects our unwavering commitment to driving the clean energy revolution. LONGi develops some of the most innovative panels for the solar industry. Their panels are high-quality, dependable and efficient for both residential and commercial solar systems.

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Tools & other pages

Solar savings calculator

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Solar savings calculator

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Solar savings calculator

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Solar savings calculator

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A solar battery is a device used to store excess solar energy generated by solar panels for later use. The battery works by converting the DC electrical energy generated by the solar panels into AC energy, which can be used to power homes or businesses. The stored energy can be used during periods of low solar production or during power outages. The battery also acts as a backup system to ensure a continuous power supply to the connected load.

Adding a battery to your solar energy system has several benefits, including:

  1. Energy independence: With a solar battery, you can store excess solar energy during the day and use it at night, reducing your reliance on the electricity grid.
  2. Cost savings: By storing excess solar energy, you can reduce the amount of electricity you need to purchase from the grid, potentially saving you money on your electricity bill.
  3. Backup power: In the event of a power outage, a solar battery can provide backup power, allowing you to continue using critical appliances and devices.
  4. Environmental benefits: By reducing your reliance on the grid, you can reduce your carbon footprint and help combat climate change.
  5. Increased system efficiency: By adding a battery to your solar energy system, you can increase its efficiency, as the battery can store excess energy that would otherwise be lost.

Solar batteries typically have a lifespan of 5 to 15 years, depending on various factors such as the type of battery, usage patterns, and maintenance. They may require some maintenance, such as periodic cleaning and monitoring of the battery's charge and discharge cycles. Proper maintenance can help extend the life of the battery and ensure optimal performance.

To determine the size of the solar battery you need, you should consider your energy usage and habits, as well as the specific goals you have for your solar energy system. Factors that can affect the size of the solar battery you need include the size of your solar panel system, the amount of energy you use during peak hours, and the amount of backup power you want to have available in case of a power outage.

One way to estimate the size of the solar battery you need is to look at your energy bills and determine your average daily energy usage. You can then use this number to calculate the minimum size of the battery you need based on the amount of backup power you want to have available. It is recommended to consult with a professional solar installer, like ZEN Energy, to help determine the best size for your specific needs.

If your solar battery runs out of power, your solar energy system will automatically switch over to the utility grid or backup power source if available. This is to ensure that you still have power even if your solar battery is depleted. When your solar panels produce more energy than your home or business needs, the excess energy is stored in the battery. If the battery is already full, the excess energy is sent back to the grid for use by other customers.

There are a few different types of solar batteries available on the market. Here are a few examples:

  1. Lead-acid batteries: These are the most common type of solar battery and have been used for many years. They are inexpensive, but require regular maintenance and have a relatively short lifespan.
  2. Lithium-ion batteries: These are a newer type of solar battery that are becoming increasingly popular due to their high energy density, long lifespan, and low maintenance requirements. They are more expensive than lead-acid batteries, but can be more cost-effective in the long run.
  3. Saltwater batteries: These are a newer type of battery that use saltwater as an electrolyte. They are non-toxic and have a long lifespan, but are not yet widely available.
  4. Flow batteries: These are a type of battery that use two different electrolytes separated by a membrane to store energy. They have a long lifespan and can be easily scaled up, but are more expensive than other types of batteries.

The type of battery that is best for your solar energy system will depend on your specific needs and budget. A solar energy professional, like ZEN Energy, can help you choose the best option for your situation.

Yes, it is possible to retrofit a solar battery to an existing solar panel system. However, it's important to ensure that the battery is compatible with the inverter and other components of the existing system. It's recommended to consult with a professional installer, like ZEN Energy, to ensure a smooth and safe installation process.

Yes, you can use a solar battery to power your home during a power outage if it is designed to do so. Many solar batteries are equipped with a feature known as "backup power" or "emergency power" which enables them to provide electricity during a blackout. However, it's important to note that not all solar batteries have this feature, so you should check with your manufacturer or installer to ensure that your system can provide backup power in the event of a power outage. Additionally, the amount of power that your solar battery can provide during an outage will depend on its capacity, the amount of energy stored in the battery, and the power requirements of your home or business.

Yes, it is possible to add more solar batteries to an existing system in the future. It is important to make sure the new batteries are compatible with the existing system and that the system is properly configured to handle the additional capacity. It is recommended to consult with a professional installer, like ZEN Energy, to ensure the proper installation and configuration of additional batteries.