Passive House Design Tools

PHPP-2007 free version - spreadsheet based design calculation tool aimed at architects and designers to assist the design of houses to the Passivhaus standard. This version of the calculation tool is a reduced functionality demonstration version. A full version including a manual can be purchased from the Passivhaus Institute for 130 Euro. The PHPP energy balance module has been shown to be able to describe the thermal building characteristics of passive houses surprisingly accurately. This applies particularly to the new technique for calculating the heating load, which was developed specifically for Passive Houses. The spreadsheet has 33 component worksheets that deal with considerations such as: summer climate, u-values, heating, cooling, the details of building areas, thermal bridges, window types, shading, heat loss through the ground, ventilation, electricity demand for both domestic and non-domestic cases, compact hear pumps and boilers. As it is spreadsheet based, designers can use PHPP to evaluate design solutions immediately without the need to wait for dynamic simulations to run. The tool provides a demonstration of the capability of the full PHPP spreadsheet to aid the design of passive houses to the Passivhaus standard.

Additional  Passive Tools -passive tools from Passive House Institute US

Energy-Design-Tools -energy design softwares from UCLA