When designing a passive uses developed by the Passivhaus Institut (PHI, Germany) calculation package PHPP (Passivhaus Projectierungs Paket). This calculation package is used in addition to the mandatory in every country methodologies for the determination of the energy that is required by national regulations. The international requirement that is imposed on passive houses is also defined in outcomes according to the PHPP methodology. In the Netherlands, for monitoring the building regulations EPG methodology used, which are often based on solid normative values and correction factors. The PHPP program is, however, only based on physical parameters and has more flexibility in the input. This is very detailed and the results are expanded. To demonstrate that the requirements of a passive compliance, the energy of a passive determined by the PHPP calculation method. The requirement that is imposed on a passive house is that the net heat demand for space may not exceed 15 kWh (thermal) m2 calculated according to PHPP, bigger and that the total primary energy demand for the total energy consumption in a home may no longer than 120 kWh/m2. The requirement for a passive house is therefore actually a two-stage rocket that both the building and the related domestic energy concerns. In the assessment under the EPG is only considered the building-related energy consumption.
For the passive criteria regarding the space demand and the total energy is a PHPP calculation required. The program is therefore an important part of the assessment (and certification) of passive houses. This PHPP calculations we can arrange for you.
The Foundation gives Passiefbouwen.nl from May 2009 from the Passive Building Accept, largely based on similar principles and according to the PHPP2009-NL calculation (for more information www.passiefbouwen.nl).