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opinion:frater_secessus:beginner_mistakes

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opinion:frater_secessus:beginner_mistakes [2022/11/08 12:13]
frater_secessus [No solar] 		opinion:frater_secessus:beginner_mistakes [2022/11/08 12:18]
frater_secessus [buying the wrong panel]
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 ==== No solar ==== ==== No solar ====
  
-Having no solar at all is generally an unforced error for vandwellers.  Even [[electrical:12v:alt_and_solar|adding small amounts of panel]] (100w) can make a big difference, and can be added to an [[electrical:12v:alternator|alternator-charged system]] for as little as $100.((100w poly panel on sale for $90, 10A [[electrical:solar:shunt_tweaking|shunt controller]] for $10.))  Yes, there are [[electrical:12v:mandatory_solar|scenarios]] where solar is truly optional. +Having no solar at all is generally an unforced error for vandwellers.  Even [[electrical:12v:alt_and_solar|adding small amounts of panel]] (100w) can make a big difference, and can be added to an [[electrical:12v:alternator|alternator-charged system]] for as little as $100.((100w poly panel on sale for $90, 10A [[electrical:solar:shunt_tweaking|shunt controller]] for $10.))
  
 ==== believing 100w of panel will make 100w all day long ==== ==== believing 100w of panel will make 100w all day long ====
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   * 20%-30% of rated power in **normal full overcast**   * 20%-30% of rated power in **normal full overcast**
   * 33%-50% of rated power in **bright overcast**   * 33%-50% of rated power in **bright overcast**
-  * 75%-90% of rated power under **full sun**+  * 70%-90% of rated power under **full sun**
  
  
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 Don't get me started on people **flat-mounting poly/mono flex panels to the roof of their van**.  Maximum cost, maximum power loss due to temp derating, //and// with the bonus of blasting re-radiated heat right through the van roof.  It's a crap trifecta.  Don't get me started on people **flat-mounting poly/mono flex panels to the roof of their van**.  Maximum cost, maximum power loss due to temp derating, //and// with the bonus of blasting re-radiated heat right through the van roof.  It's a crap trifecta. 
  
-=== mixing different panels === 
- 
-Mixing differently-rated panels will always be sub-optimal.  People  who know what they are doing can minimize the losses.  Beginners should either buy identical panels or run different types on separate controllers.  
  
 === Panel types and controllers === === Panel types and controllers ===
opinion/frater_secessus/beginner_mistakes.txt ยท Last modified: 2024/05/12 13:10 by frater_secessus

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