Solar Panel Comparison Table


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Manufacturer / ID / Rating / PTC Rating / Power Temp Coef. / Density / Efficiency / Tier


Manufacturer ID Rating PTC Rating Power Temp Coef. Density Efficiency Tier
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Definitions:


Manufacturer = Solar Company; Brand
ID = Specific solar module identification code; module name
Rating (W) = STC (Standard Testing Conditions) Rating; nameplate rating under laboratory conditions
PTC Rating (W) = PTC (PVUSA Testing Conditions) Rating; rating under more realistic outdoor conditions
Power Temp Coef. (% / degree C) = Power Temp Coefficient; output change per degree Celsius from STC rating at 25 degrees Celsius; output loss at hotter temperatures, or gain at colder temperatures
Density (W) = Efficiency per area; realistic output per area, the higher the more output in a given area
Efficiency (%) = Output per input light irradiance using STC; energy conversion efficiency; module efficiency
Tier = Solar Panel Efficiency Tier. 1 is highest, 5 is lowest
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