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opinion:solar:sizing.walkthrough [2022/05/27 14:40]
frater_secessus [where and when we are camping] 		opinion:solar:sizing.walkthrough [2022/05/27 15:05]
frater_secessus [daily power requirements]
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   * how much power we will require - every single watt   * how much power we will require - every single watt
   * where we will camp, and what time of year we will be there   * where we will camp, and what time of year we will be there
-  * avoiding shade and so the panels can actually work+  * avoiding shade so the panels can actually work
  
  
 ===== daily power requirements ===== ===== daily power requirements =====
  
-This part is the least fun and the most important;  we must account for every watt we intend to "spend" off-grid.+This part is the least fun and the most important;  we must account for every watt we intend to "spend" off-grid.  Some people prefer pencil-and-paper, but doing the work on a spreadsheet (M$ Excel, freeware [[https://www.libreoffice.org/|LibreOffice]] Calc, or free-to-use [[https://drive.google.com/|Google Docs]]) can make the work easier and more organized.  You can also rapidly alter it to model new build ideas.  
  
 The goal is to come up with a daily target in **watt-hours** (**Wh**).  There will be times we have to work in other units but Wh is the main thing.((Wh is independent of voltage))  **Watt-hours are calculated** by multiplying **the load's draw in watts** by **the hours it is expected to run**.    If we run a 4w device for 6 hours that is 24Wh (4W x 6h = 24Wh). The goal is to come up with a daily target in **watt-hours** (**Wh**).  There will be times we have to work in other units but Wh is the main thing.((Wh is independent of voltage))  **Watt-hours are calculated** by multiplying **the load's draw in watts** by **the hours it is expected to run**.    If we run a 4w device for 6 hours that is 24Wh (4W x 6h = 24Wh).
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 ==== where and when we are camping ==== ==== where and when we are camping ====
  
-The actual hours of FSE will depend on where we are and month of the year.  If we want the solar to Just Work((by itself, no help from [[electrical:12v:alt_and_solar|other charging sources]])) we have to size it for the worst average yield we will experience.   Let's consider these very different scenarios:+The actual hours of FSE will depend on where we are and month of the year.  If we want the solar to Just Work((by itself, no help from [[electrical:12v:alt_and_solar|other charging sources]])) **we have to size it for the worst average yield we will experience**.   Let's consider these very different scenarios:
  
   * vacation-camping with the family in Montana only in the summer   * vacation-camping with the family in Montana only in the summer
opinion/solar/sizing.walkthrough.txt ยท Last modified: 2022/05/27 15:09 by frater_secessus

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