Building design for the renewable energy future: Primary Energy Renewable

iPHA Webinar May 2021|Speakers: Jessica Grove-Smith, Passive House Institute The way we design buildings plays a significant role in enabling the transition to a sustainable all-renewable energy supply. Approaches of “net-”, “zero-” or “plus-” energy don't cover the full picture. In this webinar, Jessica Grove-Smith will explain PHI's concept of Primary Energy Renewable (PER) and how this approach is a unique indicator that truly depicts the energy needs of buildings…

Embodied energy and carbon in Passive House construction

iPHA Webinar August 2021|Speakers: Benjamin Krick, Passive House Institute, Tim Martel, Freelance Architectural Technologist and Passive House Designer In the first half of the webinar, Benjamin Krick explores how a life cycle assessment must be designed in order to obtain meaningful results in regards to the demand for manufacturing and operating energy. The Passive House Institute is currently working on this issue as part of the EU-funded project outPHit. Within…

Summer Comfort with Passive Measures

iPHA Webinar June 2021|Speakers: Soraya López García and Jessica Grove-Smith, Passive House Institute Thermal comfort throughout the year – winter and summer – lies at the very heart of the Passive House concept. In the light of warming climate conditions and urban densification, effective design strategies to prevent overheating in buildings are becoming increasingly important and are all-to-often overlooked or neglected. This webinar presents and discusses various strategies for designing…

Validation of PHPP v9.6 using ANSI/ASHRAE Standard 140-2017

The Passive House Canada, Passive House California, New York Passive House and the Passive House Institute contracted Remi Charron Consulting Services, to test PHPP Version 9.6 using ANSI/ASHRAE Standard 140 in order to give more building officials the authority to accept PHPP as an energy model for building code energy performance compliance. The project objectives were to: Evaluate PHPP using the ASHRAE Standard 140-2017 test cases and to record the…

The Passive House Institute

A short video about the Passive House Institute and their pioneering work in the sustainable building industry. For more information also visit the website of the Passive House Institute.

Why Are There Two “Passive Houses?”

PHI and PHIUS  You may have stumbled upon a tricky divide in the US Passive House community with two versions of 'passive house' being promoted by separate entities: the Passive House Institute (PHI), and the Passive House Institute US (PHIUS). PHIUS was originally an affiliate and approved trainer and certifier for PHI. In 2011, PHI cancelled its contract with PHIUS for misconduct. (The PHI letter is here​.) PHIUS disputed the…


The Passive House Institute is the developer and exclusive copyright holder of Bim2PH. Bim2PH is the new BIM Tool developed by the Passive House Institute. It enables data input of efficiency parameters via 3D BIM software and then transfers information for the energy balance calculation into the Passive House Planning Package (PHPP).


The Passive House Institute is the developer and exclusive copyright holder of DesignPH. DesignPH, on the other hand, is a SketchUP-based tool that provides preliminary energy balance calculations from the early design stages. The visualization advantages of a 3D Model combined with the preliminary energy balance, help the user make the best design decisions from the early stages of the project. DesignPH exports the relevant information of the thermal envelope…

Passive House Component Database

Passive House Institute (PHI) Passive House Certification is not only available for buildings, but also for building components. The Passive House Institute Certified Passive House Components facilitate the planning and energetic performance of buildings. The Passive House Institute criteria for each component type can be found HERE.

Tools Published by the Passive House Institute

The International Passive House Institute has published numerous tools to assist you planning your passive house projects: Thermal Bridge Tool Commissioning Tool - Ventilation Checklist Cooling Systems Tool Heat Pump Tool Ventilation Tool Window Tool Hygiene Tool Summer Temperature Tool Temperature Reduction Factors for Unheated or Partially Heated Extensions Lift Energy Demand Assessment Calculation of Heat Losses of Drain Pipes Data Processing Tool Scaled Pointer