Loading Solar Battery Perth...
Loading Solar Battery Perth...
AC-coupled batteries with integrated inverters are designed to work with existing solar systems. Here's what to consider when comparing options in this category.
Specifications and pricing may vary. Always confirm current details with your installer.
AC-coupled batteries connect to your home's electrical system on the AC side, after your existing solar inverter. This means they can work with any existing solar installation without modifying it. The battery has its own built-in inverter to convert stored DC power to usable AC power.
This approach is particularly suited to retrofitting batteries to existing solar systems, as you don't need to replace your current solar inverter. However, it does involve a double conversion (solar DC to AC, then AC back to DC for storage, then DC to AC again for use), which has a small efficiency impact.
Different AC-coupled batteries offer different capacity and power ratings. Capacity (kWh) determines how much energy you can store, while power output (kW) determines how much you can use at once.
Some all-in-one systems have fixed sizes (e.g., 10kWh), while others offer modular options. Consider whether you need a specific capacity now, or might want to expand later.
What to compare:
Usable capacity, continuous power output, and peak power for motor starting.
While AC-coupled systems generally work with any solar inverter, some may have specific requirements or work better with certain configurations. Your installer should assess your current solar system to confirm compatibility.
Ask about any changes needed to your switchboard, whether additional components are required, and how the battery will interact with your existing solar export.
What to ask:
"What changes, if any, are needed to my existing solar system to install this battery?"
Battery manufacturers have different support structures in Australia. Some have direct Australian offices; others work through distributors. Some are divisions of larger companies; others are dedicated battery specialists.
Ask your installer about their experience with the manufacturer's support process. How are warranty claims handled? Who provides technical support if there's an issue?
What to ask:
"Who handles warranty claims for this battery, and what has your experience been with their support?"
If you're interested in participating in Synergy's Virtual Power Plant program, confirm that your specific battery configuration is eligible. VPP compatibility depends on the complete system, not just the battery model. Ask your installer to confirm eligibility for your proposed setup.
AC-coupled systems typically have simpler installation requirements than DC-coupled alternatives, but installation complexity still varies. Consider factors like mounting location (wall-mounted vs floor-standing), indoor vs outdoor installation, and any electrical upgrades needed.
Perth's hot summers mean temperature management is important. Most quality batteries have thermal management systems, but performance in high temperatures varies. Ask about the operating temperature range and how the battery handles Perth's climate.
Whether an AC-coupled battery provides backup power during blackouts depends on the complete system design, not just the battery itself. Some configurations provide backup capability; others don't. The scope of backup (which circuits are covered) varies by installation.
If backup power is important to you, discuss this specifically with your installer. Understand exactly what backup capability is included in your quote, which circuits would be covered, and any additional costs for backup functionality.
"What's the usable capacity and continuous power output?"
Ensure you're comparing like with like across different systems.
"Will this work with my existing solar system without modifications?"
Confirm compatibility and understand any changes needed.
"Does this configuration provide backup power during blackouts?"
Backup depends on system design, not just battery model.
"How many of this system have you installed, and any issues?"
Installer experience provides insight into real-world performance.
"Is this configuration eligible for Synergy's VPP program?"
Confirm specific eligibility for your proposed setup.
"What's the total installed cost, and what does it include?"
Ensure quotes include all necessary components and installation work.
When comparing AC-coupled all-in-one batteries, focus on your specific requirements rather than brand comparisons. What capacity do you need? Is backup power important? What's your budget? How does each system work with your existing solar?
Your installer's experience with different systems is valuable. Ask them not just which system they recommend, but why they recommend it for your specific situation. Get quotes for comparable configurations and compare the complete packages, including warranty terms and support arrangements.
Our quiz helps you understand what factors matter most for your situation, so you can ask the right questions when comparing systems.
Get Matched with Installers