Solar Calculator — Estimate Your Solar System Size

Use our free solar calculator to estimate the right solar panel system size for your home. Calculate potential savings, payback period, and recommended system size by state.

About Jousto

Jousto is Australia's energy decision platform — built on 24+ years of real-world energy experience by founder Denny Honen. We help homeowners and businesses cut through thousands of solar panels, battery storage systems, air conditioners, and hot water systems, providing real installed pricing and matching you with SAA-accredited local installers.

Solar Calculator

Use our free solar calculator to estimate the right solar panel system size for your home. Calculate potential savings, payback period, and recommended system size by state. Jousto makes it simple to compare your options, understand government rebates and incentives, and connect with a trusted local installer — all in one place, with no obligation and no pressure.

Why Use Jousto

• Real installed pricing — parts and labour included, no surprises
• SAA-accredited installer network across all Australian states and territories
• Independent advice — not tied to any manufacturer or brand
• 24+ years of energy expertise behind every recommendation
• Government rebates including STCs, VEECs, and state programs applied automatically

Get an instant quote, book a 30-minute design session, or request an on-site inspection. Jousto is available to homeowners and businesses in New South Wales, Victoria, Queensland, South Australia, Western Australia, Tasmania, the ACT, and the Northern Territory.