Pmp temp coefficient math?
How to calculate Pmp with -.46 %/C and compare to panel spec? This 140w panel (STC) is rated 101w @ 45C (NOCT). If ya use -.46 * 25 = -11.5% -.115 * 140 = -16.1 w. but the spec NOCT is -29 w....
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I'm an electrical engineer with two engineering master's degrees so maybe I can help, but I have no idea what "PMP", "(STC)", or "NOTC" means.
The temperature coefficient gives you the change in performance for a change in temperature. So if you get 101W @ 45 degrees C and the temperature coefficient is -0.46% per degree C, then a rise of 10 degrees C will cause the output to drop 4.6% (or retain 95.4% of performance) for a new performance of 96.54W @ 55 degrees C.
The temperature coefficient gives you the change in performance for a change in temperature. So if you get 101W @ 45 degrees C and the temperature coefficient is -0.46% per degree C, then a rise of 10 degrees C will cause the output to drop 4.6% (or retain 95.4% of performance) for a new performance of 96.54W @ 55 degrees C.
