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electrical:solar:status [2018/05/19 08:20]
frater_secessus [Is my solar working?] 		electrical:solar:status [2019/07/13 20:37]
frater_secessus [first collect a few numbers] -19
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 If you have an MPPT controller also look up these pieces of info: If you have an MPPT controller also look up these pieces of info:
  
-  * **Vmp** - the voltage at which your panel makes maximum power.  This will be stated [[electrical:solar:panels#specifications|in the specs]] and on the label on the back of your panel.  For so-called [[electrical:solar:panels#panel_voltage|12v panels]] this is usually around 17-18v.+  * **Vmp** - the voltage at which your panel makes maximum power.  This will be stated [[electrical:solar:panels#specifications|in the specs]] and on the label on the back of your panel.  For so-called [[electrical:solar:panels#panel_voltage|12v panels]] this is usually around 17-19v.
   * **Voc** - the voltage of the panel at open circuit ("unconnected").   This will be higher than Vmp, probably in the low 20s.   Found in the same place as Vmp.   * **Voc** - the voltage of the panel at open circuit ("unconnected").   This will be higher than Vmp, probably in the low 20s.   Found in the same place as Vmp.
  
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 ===== then observe the controller ===== ===== then observe the controller =====
  
-These checks are admittedly crude but will help see if your system is getting it done.  No expensive or specialized equipment is required. MPPT controllers in particular will reveal a great deal of information by how they interact with the panels. +These checks are admittedly crude but will help see if your system is getting it done.  No [[electrical:12v:battery_monitor|expensive or specialized equipment]] is required.((but use them if you have them!)) MPPT controllers in particular will reveal a great deal of information by how they interact with the panels. 
  
 For the examples below we will assume the system is set up this way: For the examples below we will assume the system is set up this way:
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   * Vbatt == Vabs until the controller's criteria for ending absorption is met   * Vbatt == Vabs until the controller's criteria for ending absorption is met
   * Controller output decreasing as current demand drops.   * Controller output decreasing as current demand drops.
-  * **Example:**  Panel voltage 17v and rising, battery voltage held at Vabs == 12.6v, controller output amps 2A and dropping+  * **Example:**  Panel voltage 17v and rising, battery voltage held at Vabs == 14.6v, controller output amps 2A and dropping
  
 **During Absorption charging with PWM** **During Absorption charging with PWM**
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   * Controller output decreasing as current demand drops.   * Controller output decreasing as current demand drops.
   * the controller may get warmer as current demand drops((percentage of time the PWM circuit is turned OFF increases))   * the controller may get warmer as current demand drops((percentage of time the PWM circuit is turned OFF increases))
-  * **Example:**  Panel and battery voltage held at Vabs == 12.6v, controller output 2A and dropping+  * **Example:**  Panel and battery voltage held at Vabs == 14.6v, controller output 2A and dropping
  
 ==== in float ==== ==== in float ====
electrical/solar/status.txt ยท Last modified: 2024/01/14 15:32 by frater_secessus

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