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Your Estimated Savings
Detailed Breakdown
Based on your 6.6kW system in New South Wales
“Solid savings potential here. Consider adding a battery if you want to maximise self-consumption and reduce reliance on the grid during peak evening hours.”
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Get Free Quotesarrow_forwardHow This Solar Calculator Works
This calculator estimates your annual solar savings based on your quarterly electricity bill, state, system size, and self-consumption rate. It uses average peak sun hours for your state and current electricity tariffs to project savings over 25 years.
Self-consumption is the most important factor in your savings. The more solar energy you use directly (rather than exporting to the grid at low feed-in tariff rates), the higher your return. Typical self-consumption ranges from 30% to 60% without a battery, and 70% to 90% with one.
Common Questions
How much can I save with solar in Australia?
Most Australian households save between $1,200 and $2,800 per year with a 6.6kW solar system, depending on electricity rates, self-consumption, and location. South Australia and NSW typically see the highest savings due to higher electricity prices.
What size solar system do I need?
A 6.6kW system suits most 3-4 person households using 15-25kWh per day. Larger homes with pools, ducted air conditioning, or an EV may need 10kW or 13kW. Enter your quarterly bill into the calculator above for a personalised recommendation.
How accurate is a solar calculator?
Online calculators provide a useful estimate based on average sun hours, electricity rates, and system size. Actual savings depend on roof orientation, shading, self-consumption patterns, and your retailer tariff. For a precise figure, get quotes from local installers who can assess your roof.