In Canada building energy standards are lower than in many parts of Europe, and it is relatively difficult to source high quality components here, so the incremental cost of building a Passive House would typically be 10%, assuming that the builder has some experience and training in this type of construction. Are Passive Houses a good investment? Yes, absolutely – with an 80 – 90% reduction in annual heating/cooling fuel consumption the energy savings will cancel out much of the increased up-front investment cost of increased insulation, better-quality windows and ventilation systems. Even at current Canadian energy prices the total monthly cost of owning a Passive House will be very similar to the total monthly cost of owning a conventional house. However the Passive House owner will also enjoy higher indoor air quality and comfort, and will have security against rising fuel prices in the future.