As more Australians look for ways to save on electricity and use cleaner energy, many homeowners are upgrading their existing solar systems. They want to maximise the electricity they generate, lower their bills, and reduce reliance on the grid. With advances in solar battery technology, excess solar energy can be stored during the day and used later when it’s needed most. This not only saves money but also provides backup power during blackouts.
This case study features a home in Seven Hills, NSW, that upgraded its solar system with battery storage. The house already had a solar setup, and 12 additional high-performance AIKO Neostar solar panels were installed along with SigenStor BAT 8.0 batteries, making the system significantly more efficient. With the extra panels and smart energy monitoring, the home can now generate and store more energy, use it when it’s needed, and save even more on electricity.
By reviewing the system, the upgrades, and the results, this example shows how adding battery storage to solar panels can make a home more efficient, save money, and provide reliability. Homeowners can use their own electricity instead of relying on the grid, reducing energy bills. This system highlights the benefits of combining solar panels with battery storage for homes in NSW.
Luke’s home, a single-storey residence in Seven Hills with a tiled roof, already had a solar system in place, allowing for further upgrades. His existing system was designed to generate clean energy during the day and reduce reliance on grid electricity.
The system consisted of –
System Size – 5.7 kW
Solar Panels – 12 × AIKO Neostar 2P 475W
Inverter – SigenStor EC 15.0TP
Energy Meter – Sigen Energy Gateway TP
Battery Storage – 6 × SigenStor BAT 8.0 (3-phase system)
Before this upgrade, Luke had an Enphase solar system installed by our team, which was already helping him to save on electricity bills and helping reduce his home’s carbon footprint. The system performed efficiently during daylight hours, generating clean solar energy to power his home.
However, like many homeowners with earlier solar installations, Luke found that a significant portion of the energy generated during the day was going unused, instead of being utilised within the home. As a result, he wasn’t fully benefiting from the electricity his system generated.
Luke wanted to take the next step by improving his energy self-consumption, so he could use more of his own solar power instead of relying on grid electricity, especially in the evening and at night when energy demand is higher. He was also looking for a reliable backup power solution to keep essential appliances running during unexpected outages.
In addition, with rising electricity costs and greater energy independence, Luke aimed to future-proof his home by integrating advanced battery storage. This upgrade would allow him to store excess solar energy generated during the day and use it when needed, improving overall system efficiency and long-term savings.
By adding a battery to his existing solar system, Luke can use his solar energy more efficiently and take better control over his home’s energy usage.
Even though Luke’s solar system was performing well, there were several ways to make it more efficient and reliable –
Energy Storage for Nighttime Use – Solar panels generate energy during the day, but electricity is often needed in the evening. Without a battery, any extra energy produced during the day goes unused. Adding a battery allows Luke to use this stored energy in the evening, reducing reliance on grid electricity and making full use of the solar power his system produces.
Backup Power During Outages – While Luke’s existing system reduced his reliance on the grid, it didn’t provide backup during blackouts. Adding a battery ensures essential appliances, such as lighting, refrigeration, and home security systems, continue running even when the grid goes down.
Optimising Energy Efficiency – By combining a battery with smart energy management, he could control when and how electricity was used. This helped him draw less power from the grid during peak times, maximise the use of his solar energy, and lower his electricity bills while using energy more efficiently.
Future-Proofing the Home – Installing additional battery storage also prepares the home for future energy needs such as electric vehicle (EV) charging, smart home integration, or participation in Virtual Power Plants (VPPs). By planning ahead, Luke ensures his solar system can continue to meet his energy needs for years to come.
Our team worked closely with Luke to plan an upgrade to his solar system. The goal was to build his existing setup by adding new features that improve electricity usage and provide reliable backup power.
We focused on –
System Compatibility – The new battery needed to integrate with SigenStor EC inverter and energy management system to ensure smooth operation without requiring major changes.
Energy Needs – We reviewed how Luke uses electricity each day, particularly in the evenings and during peak periods. We also considered his future needs such as charging an electric vehicle. This helped us select a battery size capable of storing enough energy for his home.
Efficiency – We carefully planned the placement of the batteries and equipment to minimise energy loss. The setup was designed for easy access, simple maintenance, and long-lasting performance.
We designed an upgrade that meets Luke’s needs, helps him use more of his own solar energy and improves his system’s overall performance.
Key Components of the Solar System Upgrade
AIKO Neostar 2P 475W Solar Panels – 12 AIKO Neostar 2P 475W panels are installed on the roof. These high-efficiency panels are ideal for Australian conditions and are known for their reliability and performance –
Good Energy Production – Generates electricity even in low light conditions.
Durability – Built to withstand heat, rain, and harsh weather.
Efficiency – Produces more electricity within limited roof space.
These panels are still the main part of the solar system, producing clean energy for the home and now charging the new battery system.
SigenStor EC 15.0TP Inverter – The inverter converts electricity from the solar panels into usable power for the home. The SigenStor EC 15.0TP inverter can –
Support 3-Phase Power – Ideal for larger homes with many appliances.
Battery Integration – Compatible with SigenStor BAT 8.0 batteries.
Energy Management – Connects with the Sigen Energy Gateway TP for monitoring and control.
Sigen Energy Gateway TP – The Sigen Energy Gateway TP helps manage energy efficiently and provides –
Real-Time Monitoring – Tracks energy production, consumption, and storage.
Smart Control – Optimises battery charging and discharging.
User-Friendly Interface – Allows Luke to monitor his system from his smartphone or computer.
The upgrade was carefully planned and executed to add battery storage while keeping the system running.
Additional Cable Run – A 21-metre cable was installed to connect the batteries and control components, ensuring safe and efficient operation.
Integration – The new batteries were connected to the SigenStor inverter and gateway without interrupting the energy flow.
Minimal Disruption – The installation on the single-storey tiled roof was completed without impacting daily life.
System Testing – After installation, all components were tested to confirm they were working correctly and that energy flows were optimised.
Luke’s experience shows why more homeowners in New South Wales are adding battery storage to their solar systems. Batteries save money and make solar energy more useful and reliable. Some of the key benefits include –
Government Incentives – Many homeowners in NSW can take advantage of federal rebates that reduce the upfront cost of installing batteries. These programs make upgrading your solar system more affordable.
Energy Security – With power outages becoming more frequent due to extreme weather or grid issues, a battery allows your home to stay powered when the grid is down. Appliances like lights, refrigerators, and communication devices continue to run, keeping your home safe and functional.
Maximising Solar Investment – Batteries allow you to use more of the electricity your solar panels generate, helping you get more value from your solar system every day.
Smart Home Integration – Batteries can work with smart home systems in your home. This allows you to control when appliances run, charge electric vehicles at optimal times and manage your electricity use more efficiently.
What Changed After the Upgrade
Since the upgrade, Luke’s home manages energy more efficiently. He now uses more of the electricity generated by his solar system, reducing reliance on the grid and lowering overall electricity costs.
The addition of battery storage also provides reliable backup power.
Luke can track how much energy is being produced, stored, and used at any time. This real-time visibility helps him understand his energy usage and make better decisions, such as when to run appliances or use stored energy.
The SigenStor BAT 8.0 batteries are designed so more modules can be added later if needed. This makes it easy to expand the system as energy needs increase.
Overall, the upgrade helps Luke use energy more efficiently, save on electricity bills, and control how power is used in his home.
By combining high-efficiency AIKO panels, SigenStor inverter and six SigenStor BAT 8.0 batteries, his home now enjoys energy efficiency and cost savings.
For homeowners in NSW, this example shows why adding battery storage to solar panels is a smart move. Batteries help get the most out of solar energy and prepare homes for a future with greater energy independence and smarter energy use.
Whether you already have solar panels or are planning to install them, adding a battery is a smart way to manage your energy, save on electricity, and help the environment.
About RK Solar – Experts in Solar Power and Battery Storage
RK Solar specialises in helping homeowners and businesses find the right solar and battery solutions for their energy needs. With 16 years of experience in the solar industry, our team focuses on delivering reliable, high-quality systems designed for Australian conditions.
We take care of everything from system design and product selection to installation and ongoing support. Whether it’s a new solar installation or upgrading an existing system with battery storage, our goal is to help customers reduce electricity costs and use energy more efficiently.
Every project is planned based on the customer’s energy usage, property type, and future needs. This ensures each system performs efficiently and provides long-term value.
Thinking about upgrading your solar system or adding a battery? Our team is here to help.
Get in touch with RK Solar to discuss your energy needs and find the right solution for your home or business.
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Email – info@rksolar.net
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