Hippo Water Roller

Pettie Petzer and Johan Jonker, South Africa, since 1991

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

Sol-Char System

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, not just a lamp

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

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

WakaWaka Light & Power

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

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