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--- electrical:solar:panel-bank_ratio [2020/06/24 22:32]
frater_secessus [1:1]
+++ electrical:solar:panel-bank_ratio [2020/06/24 22:34]
frater_secessus [1:1]
@@ Line 9: / Line 9: @@
 Working backwards, fully charging lead-chemistries by 1:1 solar means requires about 8.45hrs of Full Sun Equivalent on MPPT, and about 9.7hrs FSE with PWM. **There is nowhere in the United States that averages 8.45hrs of FSE year around**.  The highest is Honolulu with an average of 5.96hrs. The highest monthly average is Las Vegas in June (7.69hrs).
-Fully-charging becomes possible with attentive panel tilt, requiring only 5.5hrs on MPPT and 6.4hrs on PWM.
+Workarounds:
+  * fully-charging lead becomes possible with attentive panel tilt, requiring only 5.5hrs on MPPT and 6.4hrs on PWM.
+  * fully-charging lead becomes possible with shallower cycling, like 75%.  This is the equivalent of the 2:1 systems below.
 ===== 2:1 overpaneling =====

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