Residential water heating with Fresnel lens

France

 * http://wims.unice.fr/xiao/solar/diy.html and http://wims.unice.fr/xiao/solar/index.html
 * http://wims.unice.fr/xiao/solar/storage.html

Use http://www.patentstorm.us/patents/6971756.html for troughs from http://www.svvti.com/projects/ringarrayconcentrator/rac_index.htm instead of the usual parabolic troughs. It is patented but in South-Africa this isn't a problem as described under HackPatents.

SolarLinks is used to provide a mirror surface.


 * This link http://wims.unice.fr/xiao/solar/diy.html