.:: The Passive-On Project
Passive-On is a completed research and dissemination
project which was funded within the Intelligent Energy for
Europe SAVE programme. The project worked to promote
Passive Houses and the Passivhaus Standard in warm climates.
The last ten years has seen increasing interest
in North and Central Europe in the Passivhaus construction
standard, particularly in Germany. Homes built to the Passivhaus standard are buildings which provide a comfortable
indoor climate in winter without the need for a
conventional heating system.
To permit this, it is essential that the building's
space heat load does not exceed 10 W/m² living
area in order to be able to use a simple air preheater.
Simulations and measurements have shown that for the
typical German climate such a design leads to
an annual demand for space heating of 15 kWh/(m²a).
Passive Houses therefore require roughly 85%
less energy for heating than a house built to
existing German building regulations. The total
primary energy demand, including household electricity,
is limited to 120 kWh/(m²a).
Objectives of Passive-On
The Passive-On project examined how to take the Passive House concept
forward, especially in Southern Europe. In these
regions the problem of household energy use is
one not only one of providing warm houses in winter
but also, and in some cases more importantly,
of providing cool houses in summer. The Passive-On
project has lead to three major outcomes:
- For architects and building designers (particularly
small studios) the project has developed Design
Guidelines and enhanced the PHPP Software
Design Tool for developing cost effective
all season Passive Houses in both heating load
and cooling load climates.
- For Policy makers the project has provided
a set of Policy Proposals,
examining the barriers and the solutions which EU, national
and local governments can adopt to promote the more wide
scale development of Passive Houses.
- More generally, Passive-On has sought
to disseminate the concept of Passive Houses and the PassivHaus standard in