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--- electrical:solar:series_vs_parallel [2018/11/19 16:40]
frater_secessus [Parallel]
+++ electrical:solar:series_vs_parallel [2019/02/01 20:13]
frater_secessus [Series]
@@ Line 10: / Line 10: @@
   * PRO
     * higher PV voltage can run in relatively **thinner wires** to the charge controller
-    * serial connections can provide **some charging in low-light situations** where lower voltage parallel or single-panel connections might not.  Imagine two nominal 12v panels running at 11v in heavy cover:  the series arrangement might yield ~22v (battery charging) instead of 11v (voltage too low to charge battery)
+    * serial connections can provide **some charging in partial shade situations** where lower voltage parallel or single-panel connections might not.  Imagine two nominal 12v panels running at 11v in heavy cover:((due to MPPT's response to shading))  the series arrangement might yield ~22v (battery charging) instead of 11v (voltage too low to charge battery).  This also happens in low, even light (like dusk or dawn) but the amount of power harvestable at those times is so low as to be of little practical use.
     * higher voltages **work well with MPPT controllers**
     * higher voltages can **charge higher voltage battery systems** like 24v.
@@ Line 17: / Line 17: @@
   * CON
     * series arrays can generate quite **high operating voltages**.  Be sure your controller can handle the VoC with edge effect.
-    * r**equires MPPT charger** to get full use of high-voltage arrays under normal conditions.
+    * **requires MPPT charger** to get full use of high-voltage arrays under normal conditions.
     * thin film panels are generally not recommended for use in serial arrays
     * **more susceptible to partial shading** problems than parallel

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