power plant Hochwuhr

Felsenau, Feldkirch / Vorarlberg

2003

The power plant as aesthetic object

 

The new hydroelectric power plant at Hochwuhr in der Felsenau is situated in the Ill Ravine, adjacent to Feldkirch’s medieval center and constitutes the built culmination of the city. The enchanting, sensitive site in the dramatic gorge (ca. 100 meter cliffs), but also directly at the head of the urban massing (Ganahl Grounds), and the fascination with a hydro-technic structure of considerable scale were occasion to design the components of the power plant as discreetly as possible and to let it speak for itself, and at the same time to „elevate“ the facility to a belvedere for the eastern edge of Feldkirch.

 

Corresponding to the development of the architectural concept, Peter Sandbichler‘s light project accentuates, as part of the design, the dynamics and aesthetics of the exceptional circumstances.

invited competition 1999/2000
1st prize

client:
Stadtwerke Feldkirch

ARTEC Architekten
with Peter Sandbichler (site-specific artwork)


Team ARTEC Architekten:
Bettina Götz and Richard Manahl
Marie-Theres Holler, Maria Kirchweger, Ronald Mikolics, Michael Werner
visuals: Mathias Ecker, Ivan Zdenkovic / Wolfgang Beyer

awards:
European Prize for Urban Public Space 2006, finalist
Vorarlberg Hypo Developers' Prize to the City of Feldkirch, 2005

photography:
Marc Lins
ARTEC Architekten

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landscape planning:  Auböck & Kárász (consultant competition phase, entire project) / Jakob Fina ( consultant realization)
engineers (complete engineer services): ILF Beratende Ingenieure
site-specific artwork : Peter Sandbichler

start of planning: 2000
start of construction: 2001
completion: 2004

weir facility:
width of each reservoir 13 m, height of each reservoir 9.05 m,
maximum flow of each 760 m3/second
weir bridge:  length ca. 40 m
power plant: low-pressure river power station with two bevel-gear tubular turbines
maximum capacity: 50,000 liter per second (50 m3/second),
head ca. 9.5 m, output 4000 kW, annual production 17,4 million kWH

fish ladder:
vertical-slot fish passes, 53 pools, difference in elevation of each pool 20 cm,
flow rate 300 liter per second, length 175 m

construction: ARGE:  Alpine-Mayreder, Tyrol Branch / Porr Technobau / Hilti & Jehle
hydraulic steelwork : Hans Künz GesmbH
turbines/generators : VA Tech Escher Wyss, Ravensburg
electric systems : Stadtwerke Feldkirch
metal construction : GS Fertigungstechnik
glazing: Jobarid-Bauelemente

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Beton / Concrete, 5 / 2010, Prague

The Phaidon Atlas of 21th Century World Architecture, Phaidon Press, London, 2008

Österreichs beste Bauten / Best of Austria. Herausgeber Architekturzentrum Wien, 2008

Neues Bauen in den Alpen. Birkhäuser, Basel/Boston/Berlin, 2008

profil, Nr 34, 18. August 2008. Horst Christoph und Patricia Grzonka: „Tanzende Kamine“

H.O.M.E, März 2008. Wojciech Czaja: „Die nackte Wahrheit“

ARTEC Architekten. Catalogue for the internet project of www.gaaleriie.net, Alena Hanzlova (editor), Prague 2006

ARCHITEKT, 09 2006, Prague

Sculptural Architecture in Austria. Kurator: Hans Hollein. Verlag Anton Pustet, Salzburg, 2006

Der Standard, Vienna, 8. 6. 2006, Rondo. Wojciech Czaja: „Form follows Fließband“

db, deutsche bauzeitung, 5I06, Leinfelden-Echterdingen. Manuela Hötzl: „Neue Kraft für die Stadt“

Der Standard, Vienna, 25. 3. 2006, Album. Ute Woltron : „Im Schaufenster“

AMC, Le Moniteur Architecture, Paris, Nr. 150, 2005: « Centrale Electrique »

Architektur&Bauforum 05, Vienna, März 03: Manuela Hötzl: „Das Felsenfeste und das Flüssige“