What Are Solar Batteries & How Do They Work?
A solar battery is a device that stores excess energy generated by your solar panels during the day so you can use it later—at night or outside solar-generation hours. Instead of sending all unused solar power back to the grid, a solar battery for home use allows you to store that energy for later use, depending on battery capacity, state of charge, and system configuration.
Solar batteries may reduce reliance on the electricity grid and offer greater energy independence. They are especially useful in areas with high electricity costs or time-of-use billing. Backup is available where the proposed battery/inverter system includes compatible backup functionality and selected circuits are configured for outage operation. When paired with smart inverters, solar batteries can manage when and how energy is used, helping to optimise energy use and battery operation.
How Our Solar Battery Installation Process Works
Understanding Needs
Design the Solution
Install & Connect
Ongoing Support
Batteries We Install
These are the home batteries we install. We confirm the exact model, usable capacity and backup setup in your written quote. Which battery suits you depends on your existing solar system, how much electricity you use in the evening, and whether you want backup during outages. After looking at your system and a recent bill, we’ll recommend the options that fit.
Growatt
ENPHASE
GOODWE
JA solar
Trinasolar
Longi
LG
Jinko Solar
Hanwha
Canadian Solar
SUNPOWER
Solar edge
SUNTECH
Fronius
It depends on the product and how it is used. Warranties vary by model, typically stated in years or total energy throughput, so check the terms for the specific battery.
Yes, batteries can be integrated into most existing solar systems. The Solar Battery Outlet expert team will evaluate your current setup to ensure compatibility and recommend efficient battery options that seamlessly work with your existing infrastructure—giving you greater energy independence and backup protection.
Yes. Unless the system is fully off-grid, you stay connected to the grid, which supplies power when the battery is empty and takes your exported solar. Whether the battery also powers your home during an outage depends on the model, the inverter and how the backup circuits are wired. We tell you what your system will and will not run in your written quote.
To care for your solar battery, keep it in a well-ventilated and temperature-controlled area, avoid full discharges, and monitor its performance regularly through the system app. Schedule periodic checks to ensure wiring, connections, and charge levels are stable, and only use CEC-approved components for safe, long-lasting operation.
It depends on how much electricity you use in the evening, your tariff and feed-in rate, and the battery size. A battery tends to suit homes with high evening use and a low feed-in tariff. Send us a recent bill, and we will estimate the payback before you commit.
How a Solar Battery Works in Your Home
During the day, your solar panels capture sunlight and convert it into electricity. This electricity first powers your home’s appliances—like lights, fans, air conditioners, or kitchen devices. Any extra energy that your home doesn’t use is stored in the solar battery system.
As the sun sets and solar production drops, your home starts using the stored energy from the battery. This lets you keep using your appliances at night without relying on grid electricity.
If your battery becomes fully charged and there’s still excess solar energy, it is sent back to the grid—often earning you credits on your electricity bill. If your battery runs low, the system may draw power from the grid. Backup performance, transfer behaviour, available power and duration depend on the equipment, configuration, battery state of charge and connected loads.
With eligible solar battery systems now qualifying for the 2026 federal rebate in NSW, battery storage has become more affordable for many homeowners.
Whether you need solar battery installation for a new system or an upgrade to your existing setup, our team supports homeowners across NSW with tailored energy solutions.