Schweizer Solarpreispublikation 2012 - Solar Agentur Schweiz

Paul kalkhoven, architect
Senior Partner foster + Partners, london
NormAN fosTer soLAr AWArd (NfsA) 2012
1.NfsA: 203%-pLuseNerGY-umWeLT AreNA, spreITeNbAcH/AG
the umwelt arena is a new built, multi-functional exhibition building, focussing on environ-
mental and sustainable subjects. the building demonstrates its own sustainable credentials
by integrating many of these technologies in its building envelope and services systems,
making them visible to its visitors. It is heated and cooled via water pipes in the floors which
are heated or cooled by ground source heating; excess heat is stored in water tanks. the
well insulated enclosure minimises the need for additional heating in winter. the folded
roof plane is the principal external architectural feature which gives the building its strong
identity. it's silhouette is kept clean by the recessed roof mounted plant in the centre of the
roof. the sloping roof facets produce a crystalline appearance. they are covered by 5'500
monocrystal PV panels which will produce 540'000 kwh per year, or 203% of its own energy
needs. Special modules resolve the triangular interfaces along the roof ridges and the snow
rails are discreetly integrated. the roof swoops down low, making the smooth PV skin more
visible and exhibiting their integrated application. this is an excellent example of how integrated
PV surfaces can be part of an expressive architectural form. more Information: page
48
2.NFSA: 186%-PLUSENERGYBUILDING FENT, WIL/SG
This new built terraced apartment building and office space in Wil utilises all available sun
facing surfaces to integrate PV panels in a discreet manner. the prominent cantilevering
terraces are enclosed by glazed balustrades with matching strips of PV panels below. the PV
strips continue along the side facades to define the floor edges. A Lucido facade system stores
solar heat captured behind glass panels to produce a high performing external wall with an
excellent thermal performance. water pumped up from 211 m depth is used for heating. together
with the fully covered PV roof they produce 186% of the building’s energy to complement
and support the living and working areas of this modern, well integrated development.
more Information: page 50
3.NfsA: 177%-pLuseNeNerGY-reNoVATIoN, INNerberG/be
this renovation of a freestanding 1970’s house turns its previously solid big roof into a big
solar power collector. The PV modules are carefully coordinated and, together with fixed and
opening rooflights and matching solid panels on non-solar exposed areas, form one unified
roof surface. together with other passive and system upgrades this has transformed this single
family house from an energy consumer to producing a surplus of 77% more energy than it
consumes, whilst upgrading its appearance to a crisp modern home. this is a good example
how existing housing stock can be upgraded with significant energy balance benefits. more
Information: page 52
Prix Solaire Suisse 2012 47