Concentrated thermoelectric generators convert solar energy to electricity, but historically their conversion efficiency has lagged behind their potential. Now, full system efficiencies of 7.4% ...

Though costly to implement, solar energy offers a clean, renewable source of power. 3 min read Solar energy is the technology used to harness the sun's energy and make it useable. As of 2011, the ...

Broessel’s generator utilizes a ball lens (complete with optical tracking) to achieve higher energy efficiency than typical PV units — up to 35 percent, according to his tests.