Trina Solar 415W is a monocrystalline module with a 20.4% efficiency, which is a long stretch ahead of what conventional panels have to offer. Trina Solar 415W has a low temperature coefficient of -0.36%, whic.
[pdf] 520W Maximum Power Output – Delivers up to 21.9% efficiency for superior energy generation. N-Type Monocrystalline Cells – Offers higher efficiency and lower degradation rates than P-Type modules. Lower Temperature Coefficient – Provides enhanced performance in high temperatures.
[pdf] A typical 300-watt solar panel is 65.8 inches long and 36.1 inches wide. It takes up 16.5 sq ft of area. If you have a 1000 sq ft roof, and you can use 75% of that roof area for solar panels, you can theoretically put 45 300-watt solar panels on a 1000 sq ft roof.
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