How many kW of solar do you need?
Answer three questions for a starting size. We confirm the real numbers at a free site assessment.
Solar and battery calculator
Starting point for your site
about 15 panels
- Estimated yearly generation
- 9,000 kWh
- Solar power you use yourself
- 55%
- Suggested battery
- 10 kWh
- Indicative bill saving per year
- $1,000 to $1,400
This is bigger than a typical home system. Larger and commercial sites are sized individually. Ask us for a site assessment.
Indicative only. Assumes a north-facing, unshaded roof. Excludes rebates, system price and ongoing tariff changes. A site assessment gives the real figures.
About this calculator
How accurate is this calculator?
It is a planning guide. It uses typical Victorian figures that you can change under "Assumptions". Your real result depends on roof direction and pitch, shading, your tariff and your habits, which we confirm at a free site assessment.
Does it include rebates?
No. Incentives change over time, so we do not guess at them here. We check what applies to your site when we quote and handle the paperwork.
Why does it suggest a particular battery size?
It looks at the power your solar would have left over during the day and the power you use in the evening, and suggests a battery that could shift between the two. We refine this at quote.
Can I get a firm quote?
Yes. Send us your details and we will assess the site and send a clear, itemised quote.