Differences

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--- electrical:solar:output [2022/04/05 19:38]
frater_secessus [panel tilt] low sun caveat, typo
+++ electrical:solar:output [2022/04/15 12:45]
frater_secessus [cleanliness]
@@ Line 159: / Line 159: @@
 ===== panel tilt =====
-Insolation figures are given for flat surfaces((like flat-mounted panels)) but you can increase yield //when the sun is low in the sky// by keeping the panel more perpendicular to the sun.
+Insolation figures are given for flat surfaces((like flat-mounted panels)).  This means //when the sun is low in the sky//((and skies are clear not overcast -- see below)) you may be able to increase solar yield by tilting the panels toward the sun.  In effect the panel is more perpendicular to the sun so it can capture maximal solar energy.
 Pro:
-  * +30% daily harvest is possible, depending on the sun's position
+  * +30% daily harvest is possible, depending on the sun's position((peak harvest may be much higher at some times but daily harvest is more applicable for offgrid vanlife))
   * can be used to increase harvest if roof space is maxxed (cannot add more panel)
@@ Line 192: / Line 192: @@
 ===== cleanliness =====
-According to Sandia lab testing, dusty panels cause a derating of about 5%.((FIXME citation))
+[[https://www.sciencedirect.com/science/article/pii/S1876610214011874|According to lab testing]], dusty panels cause a derating of 5%-6%.
 ===== further information =====

RV and vandwellers wiki