At Soltek Energy, we believe in empowering homeowners to harness the boundless energy of the sun and embrace energy independence. Our cutting-edge solar battery solutions, featuring the industry’s most reliable and efficient brands, seamlessly integrate with your existing solar panel system, allowing you to store the abundance of solar energy generated during peak sunlight hours.

Embrace Uninterrupted Energy with Quality Brands

Our meticulous selection of solar batteries, featuring industry leaders like Sonnen, ensures that you can maximise the utilisation of your solar electricity around the clock. These innovative batteries capture and store the sun’s energy, providing you with a reliable source of power, even during the evenings and on cloudy days when your energy needs remain constant.

Solar Edge Battery

Protect Your Home with Expert Home Battery Installations

Installing a home storage battery system is not a task for amateurs. It requires expertise in understanding the location, wiring, backup requirements, kilowatts, and phases of the house.

Navigating various electrical switchboards, including those with outdated or hazardous materials like asbestos, adds another layer of complexity.

At Soltek Energy, we prioritise safety and quality in every installation. Our team of experts ensures that your home storage battery system is installed correctly and efficiently, providing you with peace of mind and reliable energy storage solutions.


Powerwall is Tesla’s revolutionary home battery that stores the sun’s energy and intelligently delivers this clean, reliable electricity when the sun isn’t shining. Combine Powerwall with solar to increase your home’s independence, reduce electricity bills and create a sustainable lifestyle

  • Wall mounted sleek design
  • Indoor and outdoor rated
  • Unparalleled battery experience
  • Scalable architecture

Powerwall is Tesla’s revolutionary home battery that stores the sun’s energy and intelligently delivers this clean, reliable electricity when the sun isn’t shining. Combine Powerwall with solar to increase your home’s independence, reduce electricity bills and create a sustainable lifestyle

  • Wall mounted sleek design
  • Indoor and outdoor rated
  • Unparalleled battery experience
  • Scalable architecture

New Sungrow SBR high voltage batteries use Lithium Ferro Phosphate (LFP) cells which are considered the safest and longest-lasting battery chemistry and contain no Cobolt making them more sustainable.
Modular, compact and plug-in-play design of the Sungrow SBR battery sets feature a flexible extensive wide range of 9.6-102.4kWh.

  • High Voltage LFP Battery
  • High-performance: 100% usable energy
  • Safety: Multi-stages protection design plus
  • Easy Installation: Compact and light, single person installation
Sungrow battery

The Sonnen home battery stands out for its exceptional quality, backed by the industry’s leading warranty. Recognised for its reliability and performance, this innovative home battery system provides homeowners with peace of mind, ensuring a sustainable and long-lasting energy storage solution. With its robust design and cutting-edge technology, the Sonnen home battery not only meets but exceeds industry standards.

  • Total usable Energy of 10kWh
  • Max continuous power of 5kW
  • IP56 Rating
Sonnen battery


Will I be affected by power outages in my area if I have solar power?

It’s important to know that not every solar system is equipped with blackout protection. A typical solar setup alone won’t keep your lights on during power outages. By integrating a battery storage system with your residential solar installation, you can maintain power even when the grid fails.

A grid-connected solar system is connected to your power provider’s network, so when there’s a disruption, like a brownout or a drop in voltage, your panels may continue to generate energy. However, your inverter is designed to disconnect from the grid in such events for safety reasons, leading to a loss of electricity in your home like any other grid-dependent household.

This disconnection generally means that your solar installation is not operational during blackouts. It might seem counterintuitive. However, modern solutions are available to keep your grid dependent systems running when there’s a complete loss of power. By integrating a battery backup, you can ensure a continuous electric power supply, even when there’s a grid failure; effectively safeguarding your home from voltage reductions and power blackouts.

Power backup response times can vary, from immediate response (like a UPS system) to various delays (like an EPS system). If you’re looking for a solution that provides blackout protection, it’s best to discuss your options with your solar installer. They might suggest system upgrades or even a full replacement.

This hybrid approach of grid-connected solar and battery backup allows you to contribute to the electricity demand of the grid when your production exceeds your consumption, yet still provides a safety net during power blackouts.

If you have an off-grid solar power system, you are effectively the master of your own electrical system, significantly reducing the risk of being impacted by power blackouts; immune to the common vulnerabilities of the electrical grid. Off-grid systems are designed to be resilient against complete loss of power, ensuring that power lines and grid instabilities don’t affect your own generated power supplies.

It’s crucial to maintain your off-grid system properly; a drop in voltage or a depleted battery can lead to a power outage in your home. That’s where a backup generator becomes an essential part of your off-grid electrical system. With a reliable backup generator in place, even if your solar batteries run low, you can swiftly recover without being left in the dark.

If blackout protection wasn’t on your list of requirements, your current setup might not include this feature. In the event of a blackout where your battery fails to kick in, it’s worth evaluating how often and how long blackouts occur in your region before deciding on an upgrade.

To sum up, whether you wish to live off-grid or stay connected while enjoying a measure of independence, solar power offers a robust solution to keep your lights on, even when the grid is off.

What size solar battery should I get

Solar batteries play a crucial role in storing excess solar energy for later use, enabling homeowners to power their residences with renewable energy, especially during nighttime. Here’s an explanation of solar battery sizing to help you determine the right size for your needs:

Rough Calculation of solar needs:

Generally speaking, a 10-13 kWh solar battery is typically sufficient to power an average family home at night, assuming adequate solar panel capacity and daytime energy production.

Individual Calculations:

For a more in-depth and personalised answer, refer to your previous energy bills to understand your daily energy habits. For example, if your home uses 30kWh daily, you would require approximately 15kWh of solar battery storage.

How to account for special considerations:

Solar battery sizing depends on household consumption patterns, solar system capacity, available roof space, and future considerations like electric vehicle (EV) charging needs. If you are looking for solar, we will consult with you about your energy demands and future energy plans and help you decide on the size of your system.

Electricity Usage Patterns:

Daylight hours typically account for 30% to 60% of household electricity usage, depending on occupants’ presence and activities. Solar panels contribute to daytime electricity needs, while batteries store excess energy for nighttime consumption, ensuring 24/7 availability of renewable electricity.

Planning on getting an Electric Vehicle (EV):

EV charging adds to household electricity consumption, necessitating larger solar systems and batteries to meet increased energy demands. Solar battery size may need to be doubled or even tripled to accommodate EV charging requirements, emphasising the importance of thorough planning and sizing. Looking into the future and understanding what else you might need to get, and account for that in your energy usage.\

Solar System Sizing:

Solar system size should align with household electricity consumption, and EV charging needs to ensure adequate energy generation and storage capacity. You can use online calculators or consult with us at Soltek to determine the optimal solar system size based on location-specific sunlight intensity and energy requirements.

Location-Specific Considerations:

Solar system output varies based on geographical location, with regions experiencing higher sunlight intensity generating more electricity per kW of installed capacity. Consider location-specific factors when sizing solar systems and batteries to ensure sufficient energy generation and storage capabilities.

Determining the ideal solar battery size involves assessing household electricity consumption, accounting for future EV charging needs, and considering location-specific sunlight intensity. By analysing these factors and consulting with us at Soltek, we can help you select the most suitable solar battery size to meet your energy requirements effectively.

What are the benefits of adding a solar battery?

A house with solar panels and batteries can use the sun’s energy to charge an electric car at night. This means the solar system collects energy from the sun during the day, which is then stored in the battery. The stored energy can charge an electric vehicle overnight, eliminating the need for grid electricity. On par with this, a solar battery has numerous other benefits, including

Energy Independence:

Initiating the path to energy autonomy is a primary driver for why many homeowners integrate a solar battery into their solar system. Solar batteries empower homeowners to utilise sunlight beyond daylight, ensuring a dependable backup during power outages and unpredictable weather conditions.

Navigating Fluctuating Electric Bills:

In the world of rising electric bills, a solar battery helps eliminate the uncertainty of energy bills by reducing them and, in some cases, removing the need to pay them. Solar batteries offer a strategic remedy by optimising energy consumption for cost efficiency. This section delves into how solar batteries facilitate strategic charging and discharging, enabling homeowners to manage peak demand hours and contribute to long-term financial benefits.

Return on Investment (ROI) that Speaks Volumes:

The financial aspect of adding a battery to your solar system is a key consideration. This section illuminates the smart energy practices contributing to a noteworthy investment return. Balancing sustainability and financial gain, solar batteries become a financial asset and a conscious choice for environmentally responsible living.

Low Maintenance, High Efficiency:

The operational efficiency and maintenance requirements of solar batteries set them apart from traditional generators. This section highlights the quiet, self-replenishing nature of solar batteries, their minimal maintenance needs, and the efficiency and ease of operation they bring to homeowners.

Environmental Impact:

A critical aspect of the solar journey is understanding the environmental impact. This section underscores how integrating a battery into your solar system goes beyond personal benefits, actively contributing to reducing carbon footprints and fostering a greener planet through cleaner energy consumption.

Future-Proofing Your Energy Ecosystem:

As technology evolves, future-proofing your energy ecosystem becomes crucial. This section explores how having a battery in your solar system positions you to adapt to technological advancements and changing energy needs, ensuring long-term efficiency, savings, and security.

Value Enhancement:

The tangible impact of a battery on your property’s value is explored in this section. Solar batteries increase property value by aligning with modern living trends and offering enhanced energy efficiency. This section sheds light on how solar-equipped homes become marketable assets in the real estate landscape.

As you embark on the journey of contemplating the addition of a battery to your solar system, this comprehensive guide aims to be your beacon of information. Solar batteries are not merely technological additions; they represent a conscious choice toward energy independence, financial savings, and environmental stewardship.


10 kWh

SolarEdge Home Battery
SolarEdge Battery
  • Nominal capacity / Usable capacity 11 kWh / 10kWh
  • 10 years unlimited cycles
  • Available on finance
Get a free quote


Sonnen Batterie Evo
Sonnen battery
  • Nominal capacity / Usable capacity 11 kWh / 10kWh
  • 10 years or 10,000 cycles
  • Available on finance
Get a free quote

13.5 kWh

Tesla Powerwall
Tesla Battery
  • Nominal capacity / Usable capacity 11 kWh / 10kWh
  • 10 years unlimited cycles
  • Available on finance
Get a free quote
*Pricing may vary based on factors such as installation complexity, equipment specifications, and other project-specific requirements. Please consult with our team for a personalized quote tailored to your unique needs and circumstances.

Free Solar & Battery E-Book

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