• Low energy use: Up to 90% less heating/cooling energy use, 60-80% overall energy savings
• High Quality Indoor Air: Controlled ventilation for a continuous, consistent supply of fresh air
• Comfortable Indoor Temperature: 20ºC/68ºF (no setbacks) in winter, night cooling in summer
• Operational and Construction Savings: Vastly reduced utility bills; elimination of conventional HVAC system; much smaller solar systems required to reach zero energy; durable, tight building shell for lower maintenance, etc.
• Proven Sustainability: 15,000+ buildings worldwide, some zero and even positive energy.

Economics

The economic principle behind Passive House is the realization of a concept by Amory Lovins of the Rocky Mountain Institute to reduce construction costs through energy efficient design. By dramatically increasing the energy efficiency of a building, the HVAC system can be downsized to the point that the mechanical cost savings significantly offset the efficiency investment. This efficiency “sweet spot” is a basis for the Passive House performance standards and the key to its financial feasibility. Amory calls it "tunneling through the cost barrier." We call it the Passive House Standard!