New generation Photovoltaics

 

Photoneco has developed new generation proprietary solar concentrator systems for commercial and high energy applications: the Engineered Graded-index Concentrators (EGC), and the Hybrid Luminescent Solar Concentrators.

 

Main features of EGC concentrators are:

o Concentration factors between 5 and 25

o Achieve simultaneously high optical efficiency and acceptance solid angle

o Based on low-cost optical polymers.

 

EGCs are particularly suitable for fixed, non-tracking photovoltaic applications, thanks to the extended acceptance angles and high average efficiency.

 

In figure: EGC optical efficiency vs. solar azimuthal and polar incidence angles, compared to a common Compound Parabolic Concentrator (green dashed lines). The acceptance solid angle (i.e. the availability) of an EGC increases by a factor of 300% to 500% respect to a dielectric CPC with same concentration factor, while maintaining optical efficiency between 20% and 60%, depending on the concentration.