- Energy Retrofits
- Financial workshops
- 1st Financial workshop - London, UK
- 2nd Financial workshop - Bratislava, SK
- 3rd Financial workshop - Copenhagen, DK
- 4th Financial workshop - Dublin, IE
- 5th Financial Workshop - Milan, IT
- 6th Financial Workshop - Leipzig, DE
- 7th Financial Workshop - Sofia, BG
- 8th Financial Workshp - Sophia, BG
- 9th Financial Workshop - Växjö, SE
- 10th Financial Workshop - Barcelona, ES
- 11th Financial Workshop - Barcelona, ES
- 12th Financial Workshop in Paris, France
- Final Financial Workshop
- Financial workshops
PHPP for step-by-step retrofits
Improved optimisation for step-by-step retrofits
The English version of PHPP 9, the tried and tested tool for designing energy efficient buildings, was released in October 2015. This version included several new innovative features such as heat recovery from shower water and profitability calculations. The practical use of the tool is facilitated by means of automatic verification and plausibility checks. Different options for a particular measure can now be entered in one PHPP file and tested with reference to their respective effects. This allows energy balance to be calculated making it possible to depict improvements in efficiency due to individual refurbishment steps. In addition, the EnerPHit criteria for retrofits can now be applied internationally without restriction, with building component requirements suiting relevant climate zones.
For many years, the PHPP (Passive House Planning Package) has provided architects, designers and energy consultants with the possibility to optimise a building design on the basis of clear figures. The Excel-based calculation tool serves not only as a reliable planning aid but also as verification of compliance with the internationally applicable criteria of the Passive House Standard and the EnerPHit Standard for retrofits.
Report: Optimisation of the PHPP for old buildings with high energy consumption
The Passive House Planning Package (PHPP) is a easy to use, reliable and well-proven design tool for highly efficient buildings such as Passive Houses or NZEBs. The purpose of the present study was to investigate its validity for existing buildings with a high energy demand, in order to make sure that it is suitable for calculating the effects of step-by-step renovation. A comparison of PHPP results with results from dynamic simulations revealed that, although some algorithms were developed with highly efficient, well-insulated buildings in mind, the PHPP can be used for this purpose with sufficient accuracy. No need for changes was detected.