Battery Storage Solutions
Store your solar, cut your bills, and enjoy reliable backup with a Sigenergy home battery system.
Your Energy, Your Way
We showcase and install Sigenergy battery systems as they are smart, reliable and designed to integrate seamlessly with your existing setup. Whether you’re looking to reduce your bills, protect against blackouts, or just enjoy the peace of mind that comes from energy independence, we’ve got the solution for you.
With YESS, your battery storage solution is yours alone—no third-party control, no complicated contracts.
Use more of your solar energy
Avoid peak electricity charges
Stay powered during outages
Take control without selling power to anyone else
Take Control of Your Energy – On Your Terms
YESS is proud to be offering battery storage solutions to eligible households and businesses under the Australian Government’s Cheaper Home Batteries Program. With generous support available through the Small-scale Renewable Energy Scheme (SRES), there’s never been a better time to invest in reliable, clean energy storage.
Our battery installations are about you and your household – your needs, your usage, your savings
Why Install a Battery with YESS?
Sigenergy battery systems.
These systems are smart, modular, and built for performance.
Why Sigenergy?
Sigenergy stands out as a premium all-in-one energy storage solution that delivers exceptional reliability, flexibility, and user control, making it the perfect match for Australian homes.
We trust Sigenergy for their robust Home Battery design, and for smart AI-based control and monitoring.
Sigenergy is more than a battery—it’s a smart investment in energy independence, future readiness, and peace of mind. The smart choice for battery storage solutions.
Frequently Asked Questions (FAQ)
Battery installations are supported under the Federal Government’s Small-scale Renewable Energy Scheme (SRES), helping reduce the upfront cost for eligible homes and businesses.
Eligibitility requirements:
- Battery systems must be between 5 kWh and 50 kWh usable capacity
- Installed by accredited installers
- Must be Clean Energy Council-approved
- Must be able to connect to a Virtual Power Plant (VPP) (participation optional)
- Can be stacked with existing state battery rebates
- One rebate per eligible property Battery systems must be between 5 kWh and 50 kWh usable capacity
- Installed by accredited installers
- Must be Clean Energy Council-approved
- Must be able to connect to a Virtual Power Plant (VPP) (participation optional)
- Can be stacked with existing state battery rebates
- One rebate per eligible property
Learn more at cer.gov.au/batteries
AC-coupled home energy storage system can turn any new or existing solar system into a battery-ready system unlike alternate DC coupled / hybrid inverter solutions. With the introduction of new higher voltage batteries, AC-coupled storage has become a lower cost option to add battery storage to a solar system compared to hybrid inverters or low voltage battery storage. AC-coupling also offers a number of advantages such as flexibility for installation and also future upgrades or changes to either the solar or storage system. This means the system is better able to meet the individual needs of your home and can allow you to add battery storage at a lower cost. AC-coupled storage also allows you to better increase your independence from the grid saving further on electricity supply charges. This financial benefit is also increased through a more efficient operation. And with a simplified means to blackout-proof your home, AC-coupled storage with high voltage batteries is the smart solution if you want to add battery storage to your solar system.
What is AC-Coupled Storage?
AC coupled storage is the connection of a battery energy storage system to a solar system via AC (alternating current) electricity. Energy from a solar system is generated in the form of DC (direct current) electricity which is then turned into AC by the solar inverter. A battery inverter connected to the same electrical network via AC then converts any spare energy not used by the home back into DC so it can be stored in a battery. By contrast DC coupled storage uses what is commonly referred to as a hybrid inverter, where both the solar and battery are connected to the same inverter.
Flexibility of Installation Location
AC-coupled storage provides a greater degree of flexibility, and potentially at lower cost. When adding batteries to a new or existing solar system, one main advantage of AC-coupled storage can be the flexibility of where the battery system is installed. Many solar systems have the inverter installed either on an external wall or perhaps in a sealed services room. These might not be the best or even suitable locations for the installation of the battery system. AC-coupled storage means the battery system can be installed wherever it is best to be installed (e.g. hidden in a garage, etc), and independent of the solar system. This can also be helpful for keeping the cost of installation to a minimum.
Simplified and Improved Blackout Operation
Although modern power grids rarely experience blackouts, one of the drivers you may have when purchasing a battery system is to “blackout-proof” your home (also referred to as backup). This would mean installing and setting up your system so it is able to disconnect from the grid and continue operating. Especially for existing solar systems, AC-coupled storage offers a greatly simplified means of achieving backup. For additional cost and by adding some simple changeover switches which then interface to the AC-coupled battery inverter, your home energy storage system can connect to your rooftop solar system and provide backup power to your home.
When an AC-coupled battery is added to a home with existing solar, the original solar system usually remains unchanged and continues to operate as it does today. Your existing solar inverter still converts DC power from the panels into AC power for use in the home. The new battery system connects on the AC side of the switchboard, alongside other household circuits, rather than directly to the solar panels. This makes AC coupling particularly suitable for retrofits, because it avoids replacing or reconfiguring the existing solar inverter.
During the day, solar energy is first used by household loads as normal. Any excess solar that would otherwise be exported to the grid is detected by the battery inverter via a meter or CTs and can then be diverted to charge the battery. This process involves an extra conversion step, from DC to AC at the solar inverter, then back to DC inside the battery. While this introduces a small efficiency loss compared to DC-coupled systems, it is usually outweighed by the simplicity and lower disruption of keeping the existing solar system intact.
At night or during periods of low solar production, the battery discharges AC power back into the home to reduce grid imports. Importantly, most AC-coupled batteries can also charge from the grid if configured to do so, for example during off-peak periods. Overall, installing an AC-coupled battery allows existing solar to keep operating independently, while adding storage capability that works alongside it rather than replacing it.
With Sigen EV AC Charger, you can confidently use solar energy to power your electric vehicle. Use the fast home EV charging to optimize energy savings, embrace green technology, and enjoy a smarter charging experience.
Double your charging power instantly: Upgrade your existing 12.5 kW Sigenergy EVDC Charger to 25 kW via a simple over-the-air software unlock, with no hardware changes or site visit required.
Gain the performance of a 25 kW DC charger for a fraction of the cost of replacing your unit, delivering faster charging, improved future EV compatibility, and better use of your solar and battery system.
Let’s Keep It Simple
No compromises. Just smart storage, reliable backup, and full control over how your solar energy is used.
Are you ready to power up your independence?
Discover how our battery storage solutions qualify under the SRES program and help you reduce upfront costs
Get in touch to find out more
We’re here to help – any questions, please get in touch!