132 LIGHT + TECH


FOLLOWING ON from the Arch in Time in Houston (See FX Jan/Feb 24), another public art proposal pointing to a sustainable future will be realised this year by the Land Art Generator Initiative (LAGI), this time in Mannheim, south- west Germany.


LAGI is a non-profit organisation dedicated to advancing climate solutions through art and design. Its vision of the transition to renewable energy ‘is one in which artists and designers play a key role in bringing green technologies into landscapes and cities’, it says, ‘using solar modules and other clean tech as media for creative expression and placemaking’. Since 2008 it has been holding open call international design competitions for


cities around the world and has amassed a portfolio of thousands of ideas ‘to demonstrate how renewable energy can be beautiful’.


In Time? is a giant clock for the German city, designed by Mumbai-based Studio Aditya Mandlik, and with a built area of 7,850m2


. As well as being


powered by solar energy, and generating 1,077.6MWh of energy annually, its other benefits are food production, water harvesting and providing a shaded gathering space.


Located at a cross junction of streets and an existing railway route, its circular form is a foil to the linear urban landscape. The clock is sliced into seven pie segments, representing the seven days of


Right


The installation is aligned with key United Nations


MULTI-JUNCTION SOLAR CELLS


The solar fins are made of multi-junction solar cells These are cells with multiple p–n junctions made of different semiconductor materials. In response to


different wavelengths of light, the p–n junction of each material will produce electrical current. The use of many semiconducting materials allows for the


absorption of a wider range of wavelengths, enhancing the cell’s absorption of sunlight to convert to electrical energy. sciencedirect.com


Sustainable Development Goals


Previous page One of the clock’s seven segments,


which represent the seven days of the week


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