Extra Costs in Energy Storage Battery Installation!
Before installing an energy storage system, it’s crucial to understand the following potential hidden charges to avoid unexpected costs:
1. Is Backup Function Included?
Many installers don’t specify whether the quoted price includes backup functionality.
Backup is critical—it ensures your PV and battery continue supplying power during a grid outage.
👉 Before choosing an installer, demand that at least
two backup loads be included.
2. Do You Have an Existing PV System? Will They Remove the Grid-Tied Inverter?
It's strongly recommended to remove the old PV inverter and connect the panels directly to the hybrid inverter (DC-coupled).
Even if it costs an extra
AUD 500, it’s worth it for:
- Continuous backup during outages
- Improved system efficiency (up to 98%)
3. Non-Brick Walls Need Heat Insulation Panels
If your battery will be installed on non-brick surfaces, check whether heat insulation boards are included in the price.
4. Uneven Installation Surface
If the battery is placed on uneven ground, will a base or leveling work incur extra charges? Ask upfront.
5. Are Bollards Required?
Some battery locations (e.g., driveways or garages) require bollards for protection.
👉 Is this included in the installation quote?
6. Do You Have a Three-Phase System?
If yes, you
must use a three-phase meter to correctly measure household load consumption.
👉 Confirm whether a proper meter is included.
7. Is There Enough Space in the Meter Box?
You may need:
- A larger main switch,
- RCBO circuit breakers for backup loads (mandatory per latest regulations),
- An ATS (Automatic Transfer Switch) for seamless backup switching.
👉 Confirm if these upgrades are covered in the quote.
By asking these questions before installation, you can avoid unpleasant surprises and ensure your energy storage system is installed
compliantly, efficiently, and cost-effectively.
