Hippo Water Roller

Pettie Petzer e Johan Jonker, Sud Africa, dal 1991

Sistema Sol-Char, University of Colorado Boulder, USA, 2013-2016

Sistema Sol-Char

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

Design for Help, Energy, Water Services, Hippo Water Roller, Pettie Petzer, Johan Jonker, South Africa, 1991

Little Sun, non solo una lampada

Olafur Eliasson e Frederik Ottesen, Germania, 2012, 2015, 2017

Little Sun, non solo una lampada, Olafur Eliasson, Frederik Ottesen, Germania, 2012, 2015- 2017

WakaWaka, luce & energia

Off-Grid Solutions (1a lampada, 2011) e Stereo Design, NL, 2013

lampada WakaWaka, luce & energia, Off-Grid Solutions, Stereo Design, Nuova Zelanda, 2011 -2013