Interactive tool
The Passivhaus Savings Calculator
Tasmanian homes spend most of their energy fighting the climate. See what your bill could look like in a home designed not to.
Your current home
In a certified Passivhaus
- Your heating & cooling spend now
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- Projected in a certified Passivhaus
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- Estimated saving, every year
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- Over 25 years, at today's prices
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Indicative only — applies the certified-Passivhaus benchmark of 80–90% lower heating and cooling energy demand to your figures. Not a quote; actual performance depends on design, site and use.
Where the saving comes from
A certified Passivhaus doesn't save energy by asking you to use less — the building itself does the work. Continuous insulation, tested airtightness, high-performance windows and heat-recovery ventilation hold a stable indoor temperature with minimal mechanical heating, which is why heating and cooling demand falls by up to 80–90%.
Tasmania's cool climate is exactly where that physics pays best. Learn how we build to the standard on our Passivhaus page, or meet the certified teamthat delivers it.
Frequently asked questions
About this calculator
How accurate is this calculator?+
It is an indicative projection, not a quote. It applies the recognised certified-Passivhaus benchmark — up to 80–90% less heating and cooling energy demand — to the figures you enter. Your actual result depends on your current home, site, design and how you live.
Why is the saving shown as a range?+
Because real homes vary. The low end applies an 80% reduction to your heating and cooling spend, the high end 90% — the band certified Passivhaus buildings are designed to achieve.
Does this include the extra cost of building a Passivhaus?+
No — it shows the running-cost side of the equation only. For the build-cost side, read our Cost to Build in Tasmania guide, or get a 48-hour feasibility on your actual plans.
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