Welcome to Passipedia!

The Passive House resource

Welcome to Passipedia, the Passive House resource! Passipedia constitutes a vast array of cutting edge, scientifically sound, Passive House relevant articles. On Passipedia, basic Passive House information and insights are available for all to see, whereas members of the International Passive House Association (iPHA) receive special access to the more in depth sections. Growing daily, Passipedia is the tool with which new Passive House findings from around the world are being presented, as well as where the highlights of more than 20 years of research on Passive Houses are being posted, often for the first time ever in English. iPHA is constantly working to add to the information available on Passipedia, so please keep visiting in the future to find the latest articles and watch Passipedia grow!


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New version PHPP 8 (2013) out now - also available in English and Spanish!

Worldwide applicability, added functions, improved user-friendliness and compatibility

The Passive House Institute has just released a new version of the Passive House Planning Package. The PHPP 8 (2013) is currently available in German, English and Spanish.

PHPP – the energy balance and Passive House design tool

The new PHPP 8 includes a whole range of new and improved features such as:

  • Additional climate data sets for a wide range of new locations internationally
  • Validated and improved calculation algorithms for cooling and dehumidification (more information can found on Passipedia)
  • Expanded input of passive cooling strategies allowing for the entry of simple extract air systems and window ventilation in addition to the night ventilation strategies already featured in previous PHPP versions. Data input options for passive cooling strategies
  • Improved connectivity and accessibility via PHI's external import and export macro
  • Additional PV and heat pump calculation options, making the PHPP all the more suitable for future requirements regarding building sustainability assessments.
  • Revised data selection menus and improved compatibility with MAC and OpenOffice
  • A new components sheet containing PHI Certified Passive House Components along with their performance data, wherein additional, non-certified components may be entered manually.
  • designPH (coming soon) - a 3D data entry tool designed for the PHPP, complete with design modelling feedback. A newly developed SketchUP plugin, designPH is set to revolutionise the way we use PHPP.

read more about the PHPP

Passive House News

The latest news & developments:

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iPHA - events: Click here to get information on current events put on, organised or featuring iPHA, its affiliates and the Passive House Institute:
Trade fairs, seminars, work shops, conferences, briefings…

Druck Visit the Passive House Institute website
…and learn about the latest scientific findings, certified Passive House components, publications etc.

Upcoming events:

logo_passivhaustagung2012_rz_e 23 - 27 April 2014: 18th International Passive House Conference
The platform for energy efficient building. The 18th International Passive House Conference and framework programme will take place from 23 - 27 April 2014 in Aachen, Germany. For more information please visit the Conference website

For members only

Members of the International Passive House Association (iPHA) receive free access to an even larger array of articles which offer detailed information on specific Passive House topics and expert advice for Passive House designers. For more information on memberships and to become a member, please click here or go directly to the application form!
Members of iPHA Affiliate organisations, as listed below, will automatically become full iPHA members at no extra cost.

Current iPHA Affiliates

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IG Passivhaus Deutschland,
Passivhaus Trust,
United Kingdom
Passive House Association
of Ireland (PHAI)
Passzívházépítok Országos
Szövetsége (PAOSZ),
IG Passivhus Sverige,
NY Passive House
Passive House Institute
New Zealand (PHINZ)

danskpassivhusforum_logo.jpg C:\Documents and Settings\ENJUTO\Escritorio\logo Passivhaus_7may
Inštitút pre energeticky
pasívne domy (iEPD)
Zero Energy and PassivHaus
Institute for Research
(ZEPHIR), Italy
Dansk Passivhus Forum
(DPHF), Denmark
Passive House Associa-
tion of Estonia
Passive House California
(PHCa), United States
Associação Passivhaus
Portugal (PHPT)
Plataforma PEP

New articles for members
Moisture transport, upload on: 2014/01/17

Evaluation of the EOSWEB satellite data, upload on: 2014/01/17

Hygrothermal analysis of building components - Location Mumbai, upload on: 2014/01/17

Hygrothermal analysis of building components - Location Salvador, upload on: 2014/01/17

Hygrothermal analysis of building components - Location Singapore, upload on: 2014/01/17

Hygrothermal analysis of building components - Location Dubai, upload on: 2014/01/10

Hygrothermal analysis of building components - Location Las Vegas, upload on: 2014/01/10

Hygrothermal analysis of building components - Location Shanghai, upload on: 2014/01/10

Hygrothermal analysis of building components - Location Tokyo, upload on: 2014/01/09

Hygrothermal analysis of building components - Location Yekaterinburg, upload on: 2014/01/08

Hygrothermal analysis of building components

Climate data sets from EOSWEB

Calculation process for heating and cooling load

Passive Houses around the world

Solutions for heat and cooling supply in moist-warm climates

Separate cooling and dehumidification

Solutions for high outdoor air humidity in the summer

Passive Houses in different climates: Adapted window qualities

Influence of retrofitting on daylighting

Optimization of dwelling floor plan configuration for cascade ventilation

Energy efficiency in cafeterias and commercial kitchens

Ventilation in commercial kitchens

Calculation of primary energy and seasonal performance factor of heat pumps in Passive Houses

Frost protection for ventilation heat recovery

Frost-free foundations

Mechanical services in tropical climates

Condensation on exterior surfaces in tropical climates

Interior insulation in tropical climates

Free-running buildings in tropical climates

Summary of the parametric studies for tropical climates


“designPH” plugin for Trimble Sketchup

Overview of articles in the member area

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