How This Calculator Works
This energy savings calculator uses data from European building performance studies, internal tests, Passivhaus, Darmstadt simulations and real-world projects to give you an approximate of what you could save. With the average expected energy demand for heating/cooling (which take up ~80% of energy demand) being ~90-95%. That is highly significant.

What affects your actual results?
Every building is unique! Your specific savings will depend on factors like your local climate, how your house faces the sun, your family's lifestyle, local energy costs. Think of these numbers as a helpful starting point for understanding the difference between conventional and passive house performance.

Our recommendation:
Use these estimates as a starting point to explore the potential of passive house design. This tool is designed for educational and planning purposes. While we've worked hard to make it as accurate and useful as possible, actual building performance varies, and these figures aren't a guarantee of what your specific project will achieve. TLDR; The final savings might be higher or lower.