Energy Water and Light

Hippo Water Roller

Pettie Petzer and Johan Jonker, South Africa, since 1991

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Sol-Char System

Sol-Char Team / University of Colorado Boulder, USA, 2013-2016

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Little Sun, not just a lamp

Olafur Eliasson and Frederik Ottesen, Germany, 2012, 2015, 2017

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WakaWaka Light & Power

Off-Grid Solutions (early lamp, 2011) and Stereo Design, NL, 2013

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