Witta Ebel, Berthold Kaufmann | Economy and financing of efficiency: new buildings and renovations

Methods, the correct assignment of costs and the assumed boundary conditions have a high influence on the results of an economic assessments. For buildings, this has to be based on life cycle costs. Well documented projects show that EnerPHit retrofits are profitable compared to capital assets on the market where high returns cannot be expected for risk-free investments. Read more on cost optimality and the EPBD, step by step retrofit and the EuroPHit project, financing and funding

Peter Keig | Analysis of the operational energy performance of a retrofitted solid wall terraced house versus designed performance

A UK Victorian house was retrofitted to reduce energy and CO2 emissions. The design was based on an analysis of retrofit measures using PHPP. Designed performance is compared with twelve months of operational performance. Results show a close correlation between PHPP and operational performance.

Herwin Sap | A concept for quick and clean Passive House renovation for mass housing in the Netherlands

In Kerkrade West 153 social houses of a common Dutch typology have been renovated to passive house standard with a prefab renovation concept. Renovation took only 10 days, while keeping the house inhabited. This concept was developed by a integral design team. Housing costs for the tenants (rent & energy) has decreased because of this renovation.