Exelon Pavilions, Solar-powered architectural structures in Millennium Park, Chicago, US
The Exelon Pavilions are four modernist structures of glass and limestone positioned along the northern and southern edges of Millennium Park flanking Randolph and Monroe Streets. Solar panels are embedded throughout their walls and roofs, creating a sleek integration of renewable energy technology into the architectural form.
The design was conceived in 2001 with construction completed in 2004 and the official opening held on April 30, 2005. They marked a turning point as the first structures in the Midwest to generate electricity through integrated solar wall and roof systems.
The structures reflect how architecture can work with nature rather than against it. Renzo Piano's design philosophy emphasizes using the building itself as a tool for energy production rather than merely sheltering it.
Three pavilions provide access to underground parking garages beneath the park, while the Northwest Pavilion serves as the Millennium Park Welcome Center with information and office spaces. Their position at street level makes them easy to locate and access from multiple park entrances.
The structures generate approximately 19,840 kilowatt-hours of electricity annually through their integrated solar technology. This output covers the energy needs of the park administration offices, making the pavilions living demonstrations of on-site renewable energy production.
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