Far from the common dismissal of Margot Krasojevic’s work as (in her own words) “parametric futurist crap,” her work has always revolved around concepts of sustainability. As she explained to ArchDaily last year, she aims to focus on the ways that sustainable technology “will affect not just an architectural language but create a cross disciplinary dialogue and superimpose a typology in light of the ever-evolving technological era.” For the second project in a series of three proposals for the city of Belgrade Serbia, the architect is proposing a “Trolleybus Garden” that functions as a waiting shelter and park while simultaneously harnessing kinetic movement to produce electricity
Contrary to the immediate speculation of many, Krasojevic’s projects are not just media-friendly photo-based assemblages. They are founded on more tangible research, data, and inspiration. For this proposal, the architect looked at the city’s pre-existing trolleybus network. In lieu of bus transport, trolleybuses are electric vehicles which make them more environmentally friendly than fuel-burning vehicles. Her idea sprung from the way in which trolleybuses were powered: the vehicles use spring loaded poles to draw power from overhead wires. The poles work like a “current collector” which transfer the energy from the overhead wire to the vehicle’s controls and electric traction motors. Krasojevic envisions her Trolleybus Garden to work like a current collector at a much larger scale.
Just like her earlier playground proposal, the key technology behind the Trolleybus Garden is printed Piezoelectric cells, and the structure is connected to the trolleybus network’s overall infrastructure and overhead cables. Piezoelectric materials generate mechanical energy when subjected to mechanical strain—movement. From the movement of the trolleybuses through the stations, falling rain, random pulses and even passing wind, vibrational energy is harvested from the overhead cables and collected within the stations
The station’s design also deliberately causes more vibrations to occur in the structure, which means that any mechanical input is amplified. This expands the electrical output of the structure to provide street lighting and Internet WiFi in the immediate area, a power port for charging commuters’ mobile devices and smart cars, and power for the irrigation sprinklers in the park next to the terminal
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