Schematic of four-reflector PV Concentrator Concentrating Photo Voltaics (CPV)
To increase performance while controlling cost, the next interim generation of solar power will be Low-Concentration Photo-Voltaic Systems (CPVs). The
interim technology will concentrate the sun several times
and track the sun with simple, polar mount tracking, a reliable a well proven method.
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The 4-sun concentrator uses 4 flat plate mirrors on an inexpensive, reliable tracking device. The system produces almost four times the power output of an equivalent flat plate photo-voltaic collector for about half the cost of a conventional PV system. The idea is to trade off low cost mirrors for high cost PV panels.
Bifacial Photovoltaics (BFPV): Actually, the type of PV panel used here is bi-facial. It accepts sunlight from both sides. So this configuration is a 5 sun PV concentrator.