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opinion:frater_secessus:solar_harvest [2020/09/24 14:13]
frater_secessus [observations] 		opinion:frater_secessus:solar_harvest [2023/02/17 15:07]
frater_secessus [ununsual scenarios]
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 ===== observations ===== ===== observations =====
  
-Overpaneled configurations (relatively high panel watt to batter Ah ratio) tend have two main features:+Overpaneled configurations (relatively high panel watt to battery Ah ratio) tend have two main features:
  
   - improved charging in adverse conditions   - improved charging in adverse conditions
   - //apparent// low output in normal conditions  - this occurs because the batteries are typically in Absorption with battery charging demand dropping by solar noon;  there is rarely an opportunity to [[http://bdp.mousetrap.net/index.php/2020/07/17/mythtesting-higher-voltage-for-additional-yield-in-the-mornings/|demonstrate full output]].     - //apparent// low output in normal conditions  - this occurs because the batteries are typically in Absorption with battery charging demand dropping by solar noon;  there is rarely an opportunity to [[http://bdp.mousetrap.net/index.php/2020/07/17/mythtesting-higher-voltage-for-additional-yield-in-the-mornings/|demonstrate full output]].  
  
-Note that overpaneled systems are typically only making  
  
   * full sun normal    * full sun normal 
-    * 305w, 54% of rated, 4+    * 305w, 54% of rated
   * bright sun through thin / cirrus clouds, shadows thrown   * bright sun through thin / cirrus clouds, shadows thrown
     * 312w at 11am, sea level.  55% of rated, 67% of theoretical.      * 312w at 11am, sea level.  55% of rated, 67% of theoretical. 
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     * exceptionally high yield, 90% of rated      * exceptionally high yield, 90% of rated 
-        * [[http://img.mousetrap.net/2020/Screenshot_20200222-114332.jpg|519w at in February in Quartzsite @ noon]], ~500' elevation.  91% of rated, 114% of theoretical.  I've seen 500w+ rarely, maybe 3x in two years off grid so far.   +        * [[http://img.mousetrap.net/2020/Screenshot_20200222-114332.jpg|519w at in February in Quartzsite @ noon]], ~500' elevation.  91% of rated, 114% of theoretical.  I've seen 500w+ out of 570w rarely, maybe 3x in two years off grid so far.((before I increased array to 750w)) 
- +    * wildfire smoke - [[http://img.mousetrap.net/2020/Screenshot_20200908-122938.jpg|8.98W at noon]], sea level.  1.5% of rated, 1.9% of theoretical during September 2020 wildfires in Oregon. 
- +
-      * wildfire smoke - [[http://img.mousetrap.net/2020/Screenshot_20200908-122938.jpg|8.98W at noon]], sea level.  1.5% of rated, 1.9% of theoretical during September 2020 wildfires in Oregon. +
  
opinion/frater_secessus/solar_harvest.txt · Last modified: 2023/02/17 15:20 by frater_secessus

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