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food:refrigeration:power [2024/05/09 17:37]
frater_secessus [charging from solar] 		food:refrigeration:power [2024/05/09 17:42]
frater_secessus [battery bank capacity]
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 ===== battery bank capacity ===== ===== battery bank capacity =====
  
-The battery bank capacity is dependent on a few factors:+The battery bank capacity requirement is dependent on a few factors:
  
   * how deeply the chemistry can be discharged (~50% for lead, ~80% for LiFePO4)   * how deeply the chemistry can be discharged (~50% for lead, ~80% for LiFePO4)
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 Charging from [[electrical:solar:gentle_intro|solar]] is predictable //on average// if one knows where/when one will be camping.  Because December has the lowest insolation in the Northern hemisphere we base our panel requirements on that month.  If you are not full-timing then use the month closest to winter solstice.   Charging from [[electrical:solar:gentle_intro|solar]] is predictable //on average// if one knows where/when one will be camping.  Because December has the lowest insolation in the Northern hemisphere we base our panel requirements on that month.  If you are not full-timing then use the month closest to winter solstice.  
  
-You will need to [[electrical:solar:pvwatts|calculate how much sun]] (hours of Full Sun Equivalent, aka "kWh/day") is available in your actual wintering spot, but we will use Belle Fourche, South Dakota since it is the geographical center of CONUS.  +You will need to [[electrical:solar:pvwatts|use PVwatts or similar]] to calculate how much sun (hours of Full Sun Equivalent, aka "kWh/day") is available in your actual wintering spot, but we will use Belle Fourche, South Dakota since it is the geographical center of CONUS.  
  
 December in Belle Fourche has only 1.52 hours of FSE.  It would take ~375w of panel((flat-mounted, MPPT controller, LFP bank)) to replace 480Wh year-around. (480Wh / 1.52 hours of FSE / 0.85 overall efficiency) December in Belle Fourche has only 1.52 hours of FSE.  It would take ~375w of panel((flat-mounted, MPPT controller, LFP bank)) to replace 480Wh year-around. (480Wh / 1.52 hours of FSE / 0.85 overall efficiency)
food/refrigeration/power.txt ยท Last modified: 2024/05/09 17:57 by frater_secessus

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