In January 2019, the Passive House Planning Package (PHPP) version 9.6 was evaluated in accordance with ANSI/ASHRAE Standard 140, a comparative testing method for building energy programs.
The validation tests consist of a series of carefully described sample case building plans. Results from modelling different test cases with the software being tested are compared to those of reference software results. The class II test cases, geared towards annual building energy use, comprise a total of 38 test cases, 21 for heating and 17 for cooling.
The PHPP has already proven its ability to predict the energy use of buildings in many post-occupancy studies. Good agreement with other building simulation programs was also found earlier. The new results support this general experience following the formal test procedure of ANSI/ASHRAE 140.
