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International cooperations

The International Passive House Association (iPHA) and the Passive House Institute are often involved in collaborative research and dissemination projects e.g. co-funded within programmes of the European Union. Below you can find an overview of selected ongoing and completed projects with a brief description and links to further reading.

Co-funded by the Intelligent Energy Europe Programme of the European Union: PassREg EuroPHit
Co-funded by the 7th Framework Programme of the European Union: 3EnCult

While certain marked articles have been created with the support of the EU, they do not necessarily reflect the opinion of the European Union. Neither the EACI nor the European Commission are responsible for any use that may be made of the information contained therein.The sole responsibility for the content of Passipedia lies with the authors


As the urgency to combat climate change intensifies, REN+HOMES takes the lead in developing a universal methodology for positive energy homes and residential districts. This approach addresses the crucial role that buildings play in energy consumption and carbon emissions. Due to the significant impact of buildings on emissions, there is an increasing focus on positive energy buildings (PEBs). REN+HOMES aims to contribute to a sustainable transition by not only reducing carbon emissions but also addressing resource scarcity and energy poverty. In this respect, stakeholders are involved through education and participation programmes. Our goal is to establish a universal approach for developing positive energy homes and residential districts. This facilitates the transition to climate-neutral and energy-positive residential buildings.


outPHit - Deep retrofits made faster, cheaper and more reliable pairs such approaches with the rigour of Passive House principles to make deep retrofits cost-effective, faster and more reliable. On the basis of case studies across Europe and in collaboration with a wide variety of stakesholders, outPHit is addressing barries to the uptake of high quality deep retrofits while facilitating the development of high performance renovation systems, tools for decision making and quality assurance safeguards. More information


The following Passipedia articles/tools have been written within the framework of the outPHit project:



The SINFONIA project is a five-year initiative to deploy large-scale, integrated and scalable energy solutions in mid-sized European cities. At the heart of the initiative is a unique cooperation between the cities of Bolzano and Innsbruck, working hand in hand to achieve 40 to 50% primary energy savings and increase the share of renewables by 20% in two pioneer districts. This will be done through an integrated set of measures combining the retrofitting of more than 100,000m² of living surface, optimisation of the electricity grid, and solutions for district heating and cooling.

Here you can find links to articles describing the deliverables of the SINFONIA project and how they relate to Passive House and highly energy efficient cities.

Condensation Tool Manual (Deliverable d47 Annex B)

Monitoring heat consumption: Calculation and Demand

Renovation Strategies assessed via District Energy Balance

Experience Passive House - Passive House Open Days

Heat losses caused by drain pipes in the PHPP

Electric Energy Efficiency for Households – Doing the whole step towards energy efficiency

Energy Efficiency in Domestic Electrical Energy Use

3EnCult - Efficient energy for EU cultural heritage

The project 3EnCult bridges the gap between conservation of historic buildings and climate protection, which is not an antagonism at all: historic buildings will only survive if maintained as living space. Energy efficient retrofit is useful for structural protection as well as for comfort reasons - comfort for users and “comfort” for heritage collections. 3EnCult will demonstrate the feasibility of “Factor 4” to “Factor 10” reduction in energy demand, depending on the case and the heritage value. Project duration: 2010 - 2014


The following Passipedia articles have been written within the framework of the 3EnCult project:

Airtightness of OSB boards

Integrating wood beams into the airtight layer

Energy refurbishment of heritage buildings with PHPP's and real measurements' feedback

PassREg - Supporting the growth of Passive House regions towards an EU energy revolution

PassREg Brochure: Defining the Nearly Zero Energy Building

EuroPHit - Retrofitting for the energy revolution, one step at a time

With the EnerPHit Standard as the goal and Passive House principles as the basis, EuroPHit applies knowledge on deep energy retrofits to the oft-overlooked yet critical area of step-by-step refurbishments. EuroPHit aims to significantly increase the quality and energy efficiency of perhaps the most common type of refurbishment: retrofits conducted gradually, over a period of years. Project duration: 2013-2016

The following Passipedia articles have been written within the framework of the EuroPHit project:

Example of incentive programmes for retrofits: the KfW in Germany

Economy and financing of efficiency: new buildings, renovation and step by step retrofit

Measurements for checking consumption – "Minimal Monitoring"

Step-by-step retrofit: Airtightness concept

Internal heat gains in relation to living area

Building Integrated Photovoltaics (BIPV) in Step by Step Retrofitting Projects

Practical implementations of step by-step-retrofit to EnerPHit standard

Floor Replacement: Svartbäcksvägen

Economic analysis for the retrofit of a detached single family house to the EnerPHit standard

The EnerPHit Standard applied to large, complex existing buildings

A road towards deep building renovation on a step-by-step basis in Bulgaria

Component Award 2016: Affordable ventilation solutions for retrofits

Windows in a step-by-step retrofit

Overall retrofit plan for step-by-step retrofits to EnerPHit Standard

Step-by-step deep retrofit and building integrated façade/roof on a 'million program' house

Step-by-step Retrofits towards EnerPHit Standard in social housing in Spain

EuroPHit Brochure: Implementing deep energy step-by-step retrofits

eu_projects_publications.txt · Last modified: 2024/04/16 15:18 by