Solar Panel Efficiency Chart
Need a chart for efficiency drop-off for solar panels when mirrors are used with them.?
Given that you have a 100W solar panel (rated with a 1000W/m^2 input), and you try to pump up the output with mirrors, is there a chart somewhere that shows the dropoff of efficiency with the increased illumination? Or an absolute maximum no matter how much W/m^2 is radiating them?
As was said above, this depends on the cell manufacturer. Generally, the cell efficiency will increase with the insolation level (W/m^2) but decrease with the temperature of the cell. The trick to concentrated PV is really finding a way to passively cool the cell while pumping in lots of light.
Most CPV companies use special high-efficiency cells for this. Try Amonix, or the nice DOE folks at Sandia.
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