Differences

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--- electrical:solar:pwm_tweaking [2025/04/22 17:57]
frater_secessus [panel selection]
+++ electrical:solar:pwm_tweaking [2025/04/22 17:59] (current)
frater_secessus [panel selection]
@@ Line 37: / Line 37: @@
 ==== panel selection ====
-Choose panels with a Vmp spec as close to your battery voltage as possible;  this will mean the panels will be running closer to their rated output.
+Choose panels for your PWM with a [[electrical:solar:panels#specifications|Vmp spec]] as close to your battery voltage as practical;((Vabs + 10% might be ideal.))  this will mean the panels will be running closer to their Vmp, and therefore closer to their rated output.
 Assuming a charging voltage of 14.2v, let's consider two different panels.  Remember that Vmp x Imp = Pmax (rated power).
@@ Line 44: / Line 44: @@
   * 100w panel, 17.5Vmp - 100W / 17.5Vmp = 5.71A Imp.  14.2v x 5.71 = **81W** max.
-In this example, choosing the best-matched panel results in **14% increased harvest** for free. All it costs is attention and a few moments reading specs.
+In this example, choosing the best-matched panel results in **14% increased harvest for free**. All it costs is attention and a few moments reading specs.

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