Choosing the right solar battery isn’t just about size or price—it’s about matching your battery to your lifestyle, energy use, and long-term goals. With more Perth homes adding batteries to their solar setups, knowing what to look for will help you get better value, stronger performance, and real savings over time.
Here’s a practical guide from Solar 2020 to help you make the right decision.
1. Understand Your Energy Habits
Before you choose a solar battery, you need to understand how and when you use electricity.
- Are you home during the day or mostly at night?
- Do you use power-hungry appliances (air con, EV charging, pool pumps)?
- Do you want protection during blackouts?
Knowing your patterns helps determine the right solar battery size and whether you need features like blackout protection or time-of-use optimisation.
2. Choose the Right Battery Size
Battery capacity is measured in kilowatt-hours (kWh). A typical home battery ranges from 5 kWh to 15 kWh or more. Here’s a rough guide:
- 5–10 kWh – Great for small households or those with low night-time use
- 10–15 kWh – Suitable for most families with moderate to high usage
- 15 kWh+ – Ideal for larger homes or those wanting near full backup
You don’t need the biggest battery—just the best solar battery size for your Perth home based on your solar output and usage.
3. Know What Features Matter
Not all solar batteries offer the same features. Think about what matters most to you:
- Blackout protection – Keep essentials running when the grid fails
- Smart monitoring – Control and track performance via app
- Scalability – Add more capacity as your needs grow
- VPP eligibility – Join a Virtual Power Plant for extra savings
Ask the team at Solar 2020 which models offer these features and how they work in real Perth conditions.
4. Compare Battery Brands
Some of the best solar batteries in Perth for 2025 include:
- Tesla Powerwall 3 – Ideal for full-home backup and seamless integration
- BYD Battery-Box – Great modular option with strong inverter compatibility
- iStore Battery – Cost-effective, reliable, and locally supported
- Sigenergy SigenStor – Smart, all-in-one solution with EV integration
Each brand has its own strengths. We’ll help you compare features, warranty, performance, and compatibility.
5. Get the Right Inverter Setup
If you’re adding a battery to an existing solar system, your inverter setup matters. Some batteries work with your current inverter (AC-coupled), while others require a hybrid or new inverter (DC-coupled).
Solar 2020 will assess your existing system and recommend the best solar battery setup for your home in Perth, whether you’re retrofitting or installing new.
6. Think Long-Term Value
It’s not just about the upfront cost—it’s about how much you’ll save over the life of the battery. A quality solar battery can reduce your reliance on the grid, help you avoid peak charges, and provide security during outages.
With federal battery rebates and WA incentives in place, now’s the time to act.
Need Help Choosing the Right Battery?
At Solar 2020, we’re Perth locals who specialise in solar and battery solutions tailored to your home. We take the time to understand how you use energy—then recommend a battery that’s the right fit, not just the most popular one.
Talk to the team at Solar 2020 for expert advice and a free quote on home solar battery storage in Perth.
