Environmental Engineering Reference
offi ces, medical practices and penthouse fl ats. The architect Rolf Disch also planned
this complex as a plus-energy construction. Optimal insulation incorporating modern
vacuum processes and intelligent ventilation with heat recovery help reduce heat
requirements. In winter the sun streams through large windows right into the heart
of the building, providing some of the heating. In summer canopies and blinds
prevent the building from overheating. A wood chip heat power plant covers the
minimal remaining heating needs. Photovoltaic systems are not simply mounted on
the roof but are actually used instead of a conventional roof. As a result, the entire
roof surface generates electric power (Figure 14.6).
Figure 14.6 The Sonnenschiff or solar ship contains two shops, a bistro, offi ces and medical practices.
Source: Architekturbüro Rolf Disch, www.solarsiedlung.de.
An intelligent solution has also been devised for transport connections. The complex
has its own tram stop and conveniently sited parking areas for bicycles, thereby
offering alternatives to motor car use. The electric cars of a car-sharing fi rm
are allocated preferred parking spaces and can be charged using solar power gener-
ated by the complex itself. The Sonnenschiff complex has put into practice the
concept of working and living carbon-free and contributing to climate-compatible
14.2.2 Zero-Emissions Factory
It is also relatively easy for factories to operate without emitting carbon dioxide.
An example is the Solvis zero-emissions factory in Braunschweig, Germany, which
produces solar and pellet systems. High-quality heat insulation and waste air recov-
ery in the factory have resulted in energy savings as high as 70% compared to
conventional structures. Optimal use of daylight and low-energy offi ce machines
have halved electricity needs. Solar collectors and photovoltaic systems generate
30% of the electricity and heating required (Figure 14.7). A rapeseed oil block-
heating plant covers remaining energy needs, thereby ensuring that all energy supply
is completely carbon-free.