Prof. Feist is discussing Passive House, the role of science and ethics in construction and the future of the industry post-COVID 19. This is a recording of a presentation Prof. Wolfgang Feist held for members of the press on Tuesday May 28, 2020. After the presentation, there is a compilation of questions asked in two Q&A sessions. CLICK HERE TO START THE VIDEO PRESENTATION. Power Point Presentation: CLICK HERE Press…
The “Duck Curve” – What it is – Why You Care
The intent here is a simplified explanation of how and why our patterns of electrical usage create issues for utilities, how rooftop solar impacts those issues, and how energy storage helps solve them. Think “Duck Curve for Dummies”. Two important facts about electricity are important to the explanation. First, electricity must be used as it is generated. A limited amount can be stored in batteries but it cannot be compressed…
Durability of Building Fabric Components and Ventilation Systems in Passive Houses
Wolfgang Feist & Rainer Pfluger & Wolfgang Hasper The passive house concept specifically improves insulation of exterior building components, utilization of passive solar gains, airtightness and heat recovery from ventilation air. Reducing also heat losses from thermal bridges, the energy balance is improved significantly resulting in net heating demands lower than 15 kWh/(m2a) which is less than one-tenth of the typical heating energy in the average of existing buildings. The…
Long-term performance of Passive House buildings
California’s All – Renewable Energy Future
[caption id="attachment_552" align="alignleft" width="480"] Figure 1. Renewable energy sources are incentivized with PER factors (Logo use with permission, PHI. Original Illustration by author.)[/caption] Introducing Passive House Plus and Premium If you’ve been puzzled by the proliferation of ‘net,’ ‘nearly’ and ‘almost ready’ Zero Energy definitions and standards and have wondered just how net or nearly they truly are, take heart. The Passive House Institute (PHI) has introduced an equitable assessment…
Are the Energy Savings of the Passive House Standard Reliable? A Review of the As-built Thermal and Space Heating Performance of Passive House Dwellings from 1990 to 2018
David Johnston | Mark Siddall | Oliver Ottinger | Soeren Peper | Wolfgang Feist Abstract The Passive House (PH) standard is a voluntary quality assurance standard focused upon maximizing the health and wellbeing of occupants, whilst reducing space heating demand to a very low level. To meet the PH standard, well-defined criteria have to be met. However, given literature that suggests a ‘performance gap’ for energy savings, the question remains, how well…
Passive House Concept for Indoor Swimming Pools | Guidelines
The energy demand of indoor swimming pools can be reduced significantly by consistently applying the high energy efficiency approach of the Passive House concept. This not only contributes to climate protection but also entails savings for the financial resources of a municipality. These guideline documents summarizes the main research findings and provide recommendations to support the design, construction and long-term operation of highly energy efficient indoor swimming pools. PLEASE CLICK…
Passive House California 2020 Board Members
The Passive House California (PHCA) Board Retreat took place in Los Angeles, CA this weekend. PHCA welcomes the new 2020 board members. Board members from left to right in the picture: Xavier Gaucher, CPHD Jed Donaldson Jay Gentry Irina Tehrani, CPHD Sofia Siegel Christian Kienapfel, CPHD Rob Nicely, CPHD Colin Shane, CPHD Mike Horgan, CPHD Sophia Beavis, CPHD (not in picture) Ryan Hayes, CPHD (not in picture)
Survey Results | Passive House Open Day – Nov. 2019
Perlita Passive House wins USGBC-LA Sustainable Innovation Award
Verdical Group’s Perlita Passive House was recently awarded the U.S. Green Building Council Los Angeles Chapter (USGBC-LA)’s Sustainable Innovation Honor Award in the Energy Category. Our team provided Living Building Challenge Petal Certification project management for the home, which is the 1st Energy Petal-certified project in California, the 9th Energy Petal-certified project ever, and the 18th ILFI-certified project in California. The award was presented at USGBC-LA’s 15th Annual Green Gala at the…
Icebox Challenge
At the Net Zero Conference 2018, an Icebox Challenge between a Passivhaus box and a Title 24 box dramatically illustrated the superior performance of Passive House: in each box we put 500 pounds of ice. At the end of the challenge, after 7 hot days, 61 pounds of ice was left in the Passive House box. In the Title 24 box… all the ice was gone more than 24 hours…