Project Presentation Tribunal de Grande Instance, Paris

Architectural Award Building Integrated Solar Technology – Tuesday, August 10, 2021


The „Architectural Award Building Integrated Solar Technology“ was established by the Solarenergieförderverein Bayern (Bavarian Association for the Promotion of Solar Energy) in the year 2000. It is one of the few international competitions at the interface between architecture and solar energy. The award honors the planning and designing of excellent building-integrated solar systems and showcases exemplary solutions in sophisticated architecture.

Project 03: Tribunal de Grande Instance, Paris (France)

The new building for the Tribunal de Grande Instance de Paris was the largest project in the competition with a height of 160 meters and a usable floor space of more than 100,000 m2. The building, designed by Renzo Piano Building Workshop, impresses with its staggered structure, with extensively planted terraces and the differentiated design of the double-skin façade, whose external glazing extends beyond the edges of the building on each of its longitudinal sides and thus elegantly defines the clear structure of the building.

On the east and west façades of the high-rise building, horizontal PV modules (271 kW) cantilever outwards on steel structures to form a continuous, narrow vertical ribbon while also flanking the three uppermost storys in each of the three building sections, which respectively step back above a projecting plinth.

The PV modules are fixed back at the level of the floor slabs, out of the direct field of vision of the employees. With a depth of 1.20 m, the modules are designed with two different inclinations: the first row of modules with a 45 inclination lies directly in front of the glass façade and the second row, with a 20° inclination, is slightly offset below. The linear construction with different lengths, each staggered upwards, provides solar shading. In addition to the structural engineering requirements that had to be met for a solar power system at this height, the slender metal bands accentuate the large glass façades in a nuanced manner.

Renzo Piano Building Workshop was honored for this project with a 2nd prize in the competition „Architectural Award Building Integrated Solar Technology 2020“.

Construction panel:
Owner/Operator: ARELIA, Paris
Architect: Renzo Piano Building Workshop, Paris
PV engineering: Solstyce, Paris
Seelwork: Permasteelisa, Puteaux
PV modules: Issol, Dison
Completion: 2017

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