To qualify as a passive house, a building’s energy use cannot be more than 10 per cent of a typical home in its…

To qualify as a passive house, a building’s energy use cannot be more than 10 per cent of a typical home in its community. The building must also be able to regulate temperatures and feel comfortable in hot and cold weather.

https://www.ctvnews.ca/sci-tech/owners-show-off-prairies-first-energy-efficient-passive-home-1.4077423