spherical glass solar energy generator by rawlemon

spherical glass solar energy generator by andre rawlemon

german born, barcelona-based architect andré broessel has sent us images of his latest development of a spherical glass
solar energy generator. the project uses the advantageous strategy of implementing a ball lens and specific geometrical
structure to improve energy efficiency by 35%. in contrast to its traditional photo-voltaic 'dual-axis' counterparts,
the device incorporates a fully rotational weatherproof natural optical tracking device that is adequate for functioning
on inclined surfaces and curtain walls, empowering any building surface. the new solar generating concept has
capabilities that concentrate diffused daylight or moonlight for a more effective site context application.



left: first prototype with dual axis tracking system and triple junction cells
right: second prototype including multiple ball lenses with dual axis tracking system and triple junction cells



left: second prototype showing light transmission through 3 ball lenses
right: second prototype showing performance in different light diffusion situations 


third prototype water filled ready for measuring multiple PV cells concepts and thermal energy


measuring the focal point temperature and the radiation intensity






moonlight study of concentrated light arriving to solar cell



measuring the focal plane of a ball lens


left: set up of the 6 axis precision measurement instrument
right: set up for the direct beam measurement system



comparison of the different existing solar energy providers



render of the solar generator in context for building application



different application context