Editing Passive solar building design (section)

==Comparison to the Passive House standard in Europe==
{{Main|Passive house}}

There is growing momentum in Europe for the approach espoused by the [[passive house|Passive House]] (''Passivhaus'' in German) Institute in Germany. Rather than relying solely on traditional passive solar design techniques, this approach seeks to make use of all passive sources of heat, minimises energy usage, and emphasises the need for high levels of insulation reinforced by meticulous attention to detail in order to address thermal bridging and cold air infiltration. Most of the buildings built to the Passive House standard also incorporate an active [[heat recovery ventilation]] unit with or without a small (typically 1&nbsp;kW) incorporated heating component.

The energy design of Passive House buildings is developed using a spreadsheet-based modeling tool called the Passive House Planning Package (PHPP) which is updated periodically. The current version is PHPP 9.6 (2018). A building may be certified as a "Passive House" when it can be shown that it meets certain criteria, the most important being that the annual specific heat demand for the house should not exceed 15kWh/m<sup>2</sup>a.