With more Perth homeowners turning to solar to beat rising energy prices, choosing the right battery storage system has never been more important. Whether you want to reduce reliance on the grid, stay powered during blackouts, or make the most of your solar investment, a solar battery is the next step.
At Solar 2020, we supply and install some of the most trusted battery brands available in 2025—each offering reliable performance, smart features, and compatibility with your lifestyle.
Top Solar Batteries for Perth Homes in 2025
Tesla Powerwall 3
Type: AC-coupled with built-in inverter | Capacity: ~13.5 kWh
Ideal for: Whole-home backup, smart energy control, and premium performance
Tesla continues to lead in solar battery tech, and the Powerwall 3 is the go-to for Perth homes that want long-lasting backup, seamless app control, and strong performance in WA conditions.
Standout features:
- Seamless backup during blackouts
- Recharges from solar during outages
- Smart control via Tesla app
- Sleek wall-mounted design
BYD Battery-Box Premium
Type: Modular | Capacity: Scalable from 5.1 kWh and up
Ideal for: Flexibility, expanding storage, and compatibility with hybrid inverters
The BYD Battery-Box is a flexible solution for Perth families planning for growth. You can start with a small setup and expand as your energy needs change—perfect for homes adding EV chargers or pool heating in the future.
Standout features:
- Works with popular inverters (Fronius, Sungrow, SMA)
- Excellent scalability
- High efficiency and long life
- Ideal for staged upgrades
iStore Smart Battery
Type: AC-coupled | Capacity: 9.6 kWh–28.8 kWh (scalable)
Ideal for: Energy savings and simple integration with existing solar systems
Locally supported and designed for Australian conditions, the iStore battery offers excellent value with dependable performance. It’s a strong all-rounder for Perth homes looking to improve solar self-use and get ahead of rising power bills.
Standout features:
- Smart monitoring through the iStore app
- Flexible capacity options
- Cost-effective for everyday households
- Great pairing with iStore heat pumps and solar
Sigenergy SigenStor (5-in-1)
Type: All-in-one system | Capacity: 5–48 kWh (modular)
Ideal for: Smart homes, full system integration, and future-ready setups
Sigenergy’s SigenStor is one of the most innovative solar batteries in 2025. It combines inverter, battery, EV charging, and energy management into a single sleek unit. It’s perfect for homes that want the full smart energy experience—and it’s ready for Perth’s growing electric vehicle market.
Standout features:
- Built-in EV charger
- AI-powered energy management
- Modular battery design
- Great for high-tech, modern homes
Which Battery is Right for Your Perth Home?
It comes down to how you use energy, your goals, and your setup. Here’s a quick guide:
| Battery | Best For | Key Feature |
|---|---|---|
| Tesla Powerwall 3 | Full-home backup | Premium performance + seamless app integration |
| BYD Battery-Box | Scalable storage | Modular design, ideal for expansion |
| iStore Battery | Everyday home use | Local support, smart savings |
| Sigenergy SigenStor | Smart energy & EV integration | 5-in-1 system with EV charging & AI features |
Talk to Solar 2020 – Perth’s Solar Battery Specialists
Whether you’re upgrading an existing solar system or starting fresh, Solar 2020 is here to guide you. We supply and install the best solar batteries in Perth for 2025, including Tesla, BYD, iStore, and Sigenergy. No pushy sales—just honest advice, local knowledge, and systems that deliver.
Ready to take control of your energy?
Get in touch with Solar 2020 today for expert advice and a tailored solar and battery quote.
