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electrical:solar:output [2023/09/20 15:58]
frater_secessus [paradox of big solar] 		electrical:solar:output [2024/02/21 11:49] (current)
frater_secessus [panel tilt]
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 Because the difference between lab and actual conditions is so large, some manufacturers also publish [[https://www.infiniteenergy.com.au/difference-between-max-power-stc-noct/|NOCT]]((Nominal Operating Cell Temperature)) specs, a //derated// (lowered) set of specs which might or might not be more indicative of what you will see in your use case.  NOCT is another tool in the toolbox, not gospel truth.  Because the difference between lab and actual conditions is so large, some manufacturers also publish [[https://www.infiniteenergy.com.au/difference-between-max-power-stc-noct/|NOCT]]((Nominal Operating Cell Temperature)) specs, a //derated// (lowered) set of specs which might or might not be more indicative of what you will see in your use case.  NOCT is another tool in the toolbox, not gospel truth. 
  
-In practical terms, it's common to see a maximum of 75% of STC under good conditions, more under great conditions, and much less under poor solar conditions. +In practical terms, it's common to see a maximum of 75% of STC under good conditions, more under great conditions, and much less under poor solar conditions. And about half of that in winter.  
 + 
 +===== where and when ===== 
 + 
 + 
 +The location and season both have profound effects on solar harvest. [[opinion:frater_secessus:panelsizesforinsolation#representative_areas|For example]], Phoenix AZ has **over 8.5x the amount of solar power** available in summer as Seattle WA in the winter.  For any given location, winter harvest will be about half of summer harvest.  
 + 
 +You can estimate solar harvest using [[electrical:solar:pvwatts|models like PVwatts]]. 
 + 
 + 
  
 ===== lack of demand ===== ===== lack of demand =====
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 Pro: Pro:
  
-  * +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)) +  * optimal tilt will increase harvest when the sun is low and skies are clear.((peak harvest numbers are more impressive but of less import.)) 
-  * can be used to increase harvest if roof space is maxxed (cannot add more panel)+  * can be used to further increase harvest if roof space is maxxed (cannot add more panel)
  
 Con: Con:
electrical/solar/output.1695239924.txt.gz · Last modified: 2023/09/20 15:58 by frater_secessus

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