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opinion:frater_secessus:beginner_mistakes [2022/11/08 12:13] frater_secessus [No solar] |
opinion:frater_secessus:beginner_mistakes [2022/12/17 14:59] frater_secessus [believing 100w of panel will make 100w all day long] |
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^ Time ^ Watts ^ | ^ Time ^ Watts ^ | ||
|6:02a |0w| | |6:02a |0w| | ||
- | |7:02a |15.9w| | + | |7:02a |0w((panel voltage too low))| |
|8:02A |32.8w| | |8:02A |32.8w| | ||
|9:02A |48.7w| | |9:02A |48.7w| | ||
Line 235: | Line 235: | ||
|5:02p |48.9w| | |5:02p |48.9w| | ||
|6:02p |33.1w| | |6:02p |33.1w| | ||
- | |7:02p |16.2w| | + | |7:02p |0w((panel voltage too low))| |
|8:02p |0w| | |8:02p |0w| | ||
See the //not enough panel// section below. | See the //not enough panel// section below. | ||
+ | |||
+ | |||
+ | ==== believing 100w of panel will make 100w all year ==== | ||
+ | |||
+ | Solar harvest is greatly affected by the position of the sun in the sky (see above) and how many hours of that sun are available. | ||
+ | |||
+ | ==== believing 100w of panel will make 100w in all conditions ==== | ||
+ | |||
+ | 100w of panel makes 100w under lab (ie, perfect) conditions. | ||
==== believing solar makes zero watts in rain, overcast, etc ==== | ==== believing solar makes zero watts in rain, overcast, etc ==== | ||
Line 247: | Line 256: | ||
* 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** |
Line 289: | Line 298: | ||
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 === |