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opinion:frater_secessus:beginner_mistakes [2022/05/11 12:47] frater_secessus [Fantasy] |
opinion:frater_secessus:beginner_mistakes [2022/06/06 11:51] frater_secessus [Failure to ask good questions] |
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Having no solar at all is generally an unforced error for vandwellers. | Having no solar at all is generally an unforced error for vandwellers. | ||
+ | ==== believing 100w of panel will make 100w all day long ==== | ||
+ | |||
+ | The 100w panel will make 100w in a lab in test conditions. | ||
+ | |||
+ | - the panel will rarely make anywhere close to 100w((under normal conditions)) | ||
+ | - the max power it //does// make will be around local solar noon. Before and after that power will be less. | ||
+ | |||
+ | Example: | ||
+ | |||
+ | ^ Time ^ Watts ^ | ||
+ | |6:02a |0w| | ||
+ | |7:02a |15.9w| | ||
+ | |8:02A |32.8w| | ||
+ | |9:02A |48.7w| | ||
+ | |10:02A |62.3w| | ||
+ | |11:02A |72.8w| | ||
+ | |12:02A |79.39w| | ||
+ | |**1:02p** - local solar noon |81.7w| | ||
+ | |2:02 |79.5w| | ||
+ | |3:02p |72.9w| | ||
+ | |4:02p |62.5w| | ||
+ | |5:02p |48.9w| | ||
+ | |6:02p |33.1w| | ||
+ | |7:02p |16.2w| | ||
+ | |8:02p |0w| | ||
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+ | See the //not enough panel// section below. | ||
+ | |||
+ | ==== shade ==== | ||
+ | |||
+ | Shade will wreck solar harvest. | ||
==== Worrying ==== | ==== Worrying ==== | ||
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Don't get me started on people **flat-mounting poly/mono flex panels to the roof of their van**. | Don't get me started on people **flat-mounting poly/mono flex panels to the roof of their van**. | ||
+ | |||
+ | === mixing different panels === | ||
+ | |||
+ | Mixing differently-rated panels will always be sub-optimal. | ||
=== Panel types and controllers === | === Panel types and controllers === | ||
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Understand that **efficiency is a relationship between rated output and physical panel size**: | Understand that **efficiency is a relationship between rated output and physical panel size**: | ||
This means **if you have limited space you will get more power out of of the same space using higher-efficiency panels**. | This means **if you have limited space you will get more power out of of the same space using higher-efficiency panels**. | ||
+ | |||
+ | ==== Mismatched panels ==== | ||
+ | |||
+ | Mismatched panels (different voltage or current [[electrical: | ||
+ | |||
+ | * running // | ||
+ | * run different-spec panels on their own controller | ||
+ | |||
+ | If you are committed to running mismatched panels on the same controller see [[https:// | ||
+ | |||
==== Not enough panel ==== | ==== Not enough panel ==== | ||
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* [[opinion: | * [[opinion: | ||
* when you hit a wall //then// ask for help. No one likes leeches, princesses, helpless snowflakes, or the lazy who expect others to do the work for them. | * when you hit a wall //then// ask for help. No one likes leeches, princesses, helpless snowflakes, or the lazy who expect others to do the work for them. | ||
- | * express your request as clearly and simply as possible | + | * express your request as clearly and simply as possible, including what you intend to accomplish |
- | * indicate what you do know, [[opinion: | + | * shouldn' |
- | * use human-readable style. | + | * indicate what you do know, [[opinion: |
* write a concise and specific title. | * write a concise and specific title. | ||
+ | * write the post in normal, human-readable style. | ||
+ | |||
> I am always surprised to see some people demanding the time of others and meeting a most obliging response. Both sides have in view the reason for which the time is asked and neither regards the time itself — as if nothing there is being asked for and nothing given. | > I am always surprised to see some people demanding the time of others and meeting a most obliging response. Both sides have in view the reason for which the time is asked and neither regards the time itself — as if nothing there is being asked for and nothing given. | ||
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* is the responder an idiot, a druggie, a zero-experience dreamer, a poorly-informed blowhard, a black/white thinker? | * is the responder an idiot, a druggie, a zero-experience dreamer, a poorly-informed blowhard, a black/white thinker? | ||
* is the advice upvoted/ | * is the advice upvoted/ | ||
+ | * is the advice commented on favorably by onlookers whose opinion you value? | ||
* does the responder have experience and/or training in the area? | * does the responder have experience and/or training in the area? | ||
* does the responder expect you to believe him/her as gospel? | * does the responder expect you to believe him/her as gospel? |