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opinion:solar:sizing [2023/11/22 10:18]
frater_secessus [solar panels]
opinion:solar:sizing [2023/12/26 11:54]
frater_secessus [battery bank]
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       * if you have undersized solar       * if you have undersized solar
       * you have lead-chemistry battery bank       * you have lead-chemistry battery bank
 +      * if charging is time-limited and you want maximal harvest from the alternator, shore, or other high-current charging source.  **Example: ** If battery specs say you can constant-charge at [[electrical:12v:battery_capacity|0.2C]] (20A per 100Ah of capacity) then((all other things being equal)) a 100Ah bank could take 20A, 200Ah could take 40A, and 300Ah could take 60A.  
  
 You will need **somewhat less Ah capacity** You will need **somewhat less Ah capacity**
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   * [[electrical:solar:pvwatts|average insolation sun power available at the time/place]];  in the northern hemisphere full-timers base this on December since it's the lowest-yield month.  For part-timers, it will be the month of lowest insolation you will camp in.   * [[electrical:solar:pvwatts|average insolation sun power available at the time/place]];  in the northern hemisphere full-timers base this on December since it's the lowest-yield month.  For part-timers, it will be the month of lowest insolation you will camp in.
   * the contribution of any other charging sources   * the contribution of any other charging sources
-  * minimum charging current requirements, if solar is the sole charging source (we can ballpark 0.2C for AGM and 0.1C for FLA)+  * minimum charging current requirements, if any.   (we can ballpark 0.2C for AGM and 0.1C for FLA.  Lithium has no minimums)
  
 Let's assume a 200Ah AGM bank depleted to 50% SoC, wintering in [[camping:snowbirding:quartzsite|Quartzsite]] with an MPPT-based solar config and flat-mounted panels.   Let's assume a 200Ah AGM bank depleted to 50% SoC, wintering in [[camping:snowbirding:quartzsite|Quartzsite]] with an MPPT-based solar config and flat-mounted panels.  
opinion/solar/sizing.txt ยท Last modified: 2023/12/26 11:57 by frater_secessus