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PVPS
activities and products:
Architectural
design
This
work focused on the needs of architects interested in the
integration of PV into the built environment. The main outputs
are described below.
Design
Criteria & Examples
An
evaluation of the criteria for successful design of building
integrated photovoltaic systems. This is reported in a newly
published book 'Designing
with Solar Power' but is also very well summarized in
an informative and well illustrated
presentation (1.8MB) by Tjerk Reijenga of Bear
Architecten who was responsible for this activity and
is the architect of a number of the best known BIPV buildings
in the Netherlands.
A
number of examples of BIPV designs from all the countries
participating in the Task were also gathered and summary information
on these can be seen at the web site www.pvdatabase.com
along with information of a large number of PV products. The
searchable database provides information on almost 400 projects
world-wide covering a variety of PV applications, e.g. facades,
flat roofs, roof integrated, louvers, etc. It contains information
on type of building, system power, PV technology and a short
description of the project with photographs to present the
project visually.
A
selection of on going projects was examined, with the evolution
of the projects and their eventual outcomes tracked through
a set of case studies over the life of Task 7. The details
of these case studies are reported in the design
book and ar ealso presented in the case
studies area of the IEA-PVPS international website.
Design
Tools
Computer
based design tools can be very useful in the design of PV
systems. Experts from Task 7 were involved in the development
of two tools which are particularly suitable for the design
of building integrated PV systems.
PVSyst
was developed at the University of Geneva and is a PC software
package for the study, sizing, simulation and data analysis
of complete PV systems. It is suitable for grid-connected,
stand-alone and DC-grid (public transport) systems, and offers
an extensive meteorological and PV-components database. This
software is aimed at architects, engineers, and researchers,
and is also useful for teaching purposes.
The
ALLSOL PC program developed by Solpros from Finland and
Helsinki University of Technology is an all-in-one pre-design
tool for building energy systems which also includes BIPV
systems. It takes into account the interplay and interaction
between different components, e.g. BIPV and the building thermal
performance. The PV is not only an electricity production
unit, but may also interact with the heating, cooling, and
daylight energy flows of the building. The designer may seek
for the best combination of different technologies using a
variety or combination of different criteria.
Two
main reports were produced on design tools. Photovoltaics
in Buildings - A survey of design tools (Ref S/P2/00289/REP),
was produced by Studio
E Architects in 1997. It is now somewhat out of date but
was the basis of much of the subsequent work done. It is available
from helpline@envirowise.gov.uk
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