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New Energy Award 1999
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Application Category
Prefabricated Housing integrated with PV Power Generation System
(SHIN-Parfait EX)
Winner
Sekisui Chemical, Co., Ltd. |
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Features of Equipment, Systems and Facilities
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 Two-storied,
steel-frame houses with 2-5 kW PV power generation system on
the roof as standard equipment were developed and marketed.
A flat roof was adopted to secure wide area for accommodating
PV modules.
The factory production allowed reducing the cost of PV power
generation system owing to collective purchase of materials
and in-factory process work of components.
The house became hot-selling products, selling 4,500 houses
a year. |
Installation space secured by use of flat roof
The system is designed so as to utilize the roof space fully
despite limited installation area and complicated geometry
for generating power as much as possible. In this way, the
system installation can be matched to the desired plan layout.
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Flat roof
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Gabled roof
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Hipped roof
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Cost down implemented by reducing number of work steps
on site, with easy maintenance based on special mounting
method
 Both
cost and price were reduced by collective purchase of materials
and factory production with pre-arranged wiring and base
reinforcement.
The system is separated from the water-proof roof materials
to reduce burden to the latter through the newly developed
fitting mechanism to facilitate the maintenance.
Sunshine is received from all the directions, ensuring
long-lasting exposure
Mounting on a flat roof allows to receive the sunshine from
every direction. The tilt angle of PV panel is set to 10
degrees to collect more light for longer period, and to
provide stable power output without being affected by the
site orientation.
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Flat roof |
Ordinary tilted roof |
Good harmony between performance and appearance with 10-degree tilt
 The
panel frame is mounted on a flat roof at a tilt as small
as 10 degrees, almost horizontal. The system is in harmony
with housing appearance and street view without spoiling
landscape.
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