What’s the Difference Before and After Installing a Battery for a 20kW Solar PV System?
August 6, 2025
Here’s a real-world example that shows the impact clearly:
🔋 Before Installing the Battery
- PV system: 20kW
- Average night-time electricity usage: 12.34 kWh
- Quarterly electricity bill: $234 AUD (to pay)
🔋 After Installing a 10kWh Battery
- Average night-time usage drops to: 4.38 kWh
- Quarterly electricity bill: –$190 AUD (credit)
- Total quarterly savings: $234 + $190 = $424 AUD
This is with just a 10kWh battery. If you install a larger 50kWh battery, your energy independence and savings will multiply, especially for homes with high energy usage or EV charging needs.
Energy storage isn’t just about backup—it’s a smart way to maximize your solar investment and take control of your electricity bill.
Electricity bill going up day by day, That’s the challenge every household is facing. Aussie Solar Batteries Group brings you a safe, cost-saving, and worry-free energy storage solution with Each Energy battery:
To ensure real safety, your battery must include an automatic fire suppression system .
Let’s break down the two options if you already have solar panels and are considering installing a battery storage system. 🔌 Option 1: Keep Your Existing Grid-Tied Inverter (AC Coupling)
