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Passive House Planning Package (PHPP) 9 & DesignPH

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The latest versions of PHPP and designPH are intended to make passive house design both easier and more accurate than ever before — and to plan for a future powered by renewable energy.



The energy balance and planning tool for efficient buildings and refurbishments

The PHPP is an easy to use planning tool for energy efficiency for the use of architects and planning experts. The reliability of the calculation results and ease of use of this planning tool has already been experienced by several thousand users.


( -> PHPP 9 | IP-PHPP 9 | designPH | designPH EDU | Workshops | Examples)


PHPP 9 news – EnerPHit Retrofit Plan | IP-PHPP 9 with variant calculations

Now available: output file EnerPHit Retrofit Plan and criteria for pre-certification of step-by-step retrofits

A separate output-file for step-by-step retrofits was added to PHPP 9. Linked to PHPP, this EnerPHit Retrofit Plan enables the user to present component qualities and efficiency results of single retrofit steps. Furthermore, a scheduler, and additional descriptions or connection details complete the comprehensive presentation of the retrofit process.

An additional section to the EnerPHit criteria also enables quality assurance of the step-by-step retrofit processes through pre-certification during the first retrofit step.


EnerPHit Retrofit Plan (ERP) available for IP-PHPP 9


An update of the IP-version of PHPP was released. The IP-version 9.7 now also contains the EnerPHit Retrofit Plan in imperial units. Step-by-step retrofits can now be pre-certified in IP-units. A new version of the Passive House Building Criteria with IP units is now available.


Planning Passive House buildings and NZEBs – made easy with the PHPP

The tried and tested Passive House Planning Package provides reliable results for the following:

Heating demand per year [kWh/(m²a)] and maximum heating load [W/m²]

Cooling demand per year [kWh/(m²a)] and maximum cooling load [W/m²]
(in case of active cooling)

Summer comfort in case of passive cooling: frequency of overheating [%]

Demand for renewable primary energy (PER) per year and primary energy demand (PE) of all energy services in the entire building [kWh/(m²a)]

Assessment of the annual renewable energy gains [kWh/(m²ground a)]


The advantages of the Passive House Planning Package

Energy balance calculation in the common Excel format

Easy and direct data input, in a flexible way where required

Validated result accuracy

Continually being further developed

Verification for Passive House buildings and EnerPHit retrofits

Detailed manual with tips for energy efficiency

Interface for import/export of data from/into other programmes

Can be combined with the 3D tool designPH (plugin for SketchUP)


System requirements and license type

The PHPP is based on a MS Excel workbook in the xlsx/xlsm format. Microsoft Windows XP (or higher) and Microsoft Excel 2007 (or higher) are system requirements. On Macintosh, PHPP works with Excel for Mac 2011 (or higher). As far as the authors are aware, the PHPP can also be used with current versions of OpenOffice or LibreOffice. However, depending on the platforms used and their programming, there may be limited functionality of the calculation tool or the implemented macro tools.


PHPP is only provided as single-user license, including a detailed manual. With the license the PHPP user obtains a registration code which is used to register the PHPP license. Based on this registration, the user will receive updates of the calculation tool, or upgrade discounts for new versions of PHPP or designPH.


PHPP 9 – Latest version with many new applications

Verification in accordance with the international EnerPHit criteria for modernisation of buildings

Management of different design variants or refurbishment steps

Comparison of economic feasibility between selected planning variants

Data input assistance by means of error messages, warnings and plausibility checks

Extended input options for losses from heating and hot water distribution networks

Implementation of evaluation method according to the PER factor classification system

Certification according to the Passive House categories Classic, Plus and Premium


Passive House Planning Package – a tried and tested planning tool

The PHPP based on Excel was introduced for the first time in 1998 and has been continually further developed ever since. Calculation sheets for space heating balances (annual and monthly methods), and for heat distribution and supply as well as for the electricity and primary energy demand, constitute the main features of this tool. Essential modules were successively supplemented for the practical planning of energy efficiency projects throughout the world, including the calculation of characteristic values of windows, shading, heating load and summer behaviour, cooling and dehumidification demand, ventilation for large objects and non-residential buildings, taking into account of renewable energy sources, and EnerPHit certification (retrofitting of existing buildings). The PHPP is continually being validated and extended on the basis of measured values and new research findings.


In the context of accompanying scientific research in several objects, measured results were compared with the calculated results. In the process, a high correlation could be demonstrated between the demand calculated using the PHPP and the consumption ascertained through scientific monitoring projects. With careful planning of building efficiency, there will be no performance gaps.


designPH – 3D data entry tool for the Passive House Planning Package

designPH is an ideal addition to the Passive House Planning Package, and has the following advantages:

plugin for the well-known modelling software SketchUP

project data input and 3D display of the building envelope

automatic analysis and simplified calculation of the heating demand

3D editing and optimisation of the building design

geometrical data of the building envelope can be exported into PHPP


The latest version designPH 1.1 does not just ensure compatibility with PHPP 9; one of the new features includes automatic identification and calculation of the shading parameters even during the analysis with the 3D tool, therefore optimisation of a building's shading parameters is already possible in SketchUP.

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