4 panels in series needs to be parallel with another 4 panels in series or there will be some serious power loss.
Solar panel wiring series vs parallel.
You would wire your solar panels in parallel if the voltage was at the correct voltage but you wanted to have redundancy or to speed up the charging process.
The amps and volts of a solar panel array can be affected by how the individual solar panels are wired together.
You can see more in the example below.
For this connection, a string is created by 2 or more panels in series.
A positive terminal is connected to another panel’s positive terminal in this solar panel wiring, whereas the negative end is attached to the other negative end.
If you had 4 solar panels in parallel and each was rated at 12 volts and 5 amps, the entire array would be 12 volts and 20 amps.
Wiring solar panels in series when a solar installer wires your solar panels in a series, each panel is connected to the next in a “string.”
The major practical difference between wiring identical solar panels in series or in parallel is what happens to the output current and voltage in each case:
The amperage perusing won't be added up, and remain similar regardless of the number of sun powered chargers you interface in series.
When you wire multiple panels in series, their output voltages add together, and their output current remains the same.
Parallel wiring eliminates performance issues associated with partial shade.
Remember, you need a greater value of the voltage to charge a battery.
The main thing to remember is that wiring in series will increase your voltage, while wiring in parallel will increase your amperage.
This blog post is going to teach you how the wiring of a solar panel array affects it’s voltage and amperage.
When wiring solar panels in parallel, the amperage (current) is additive, but the voltage remains the same.
Wiring solar panels in parallel the parallel circuit is slightly complex when compared to the series circuit.
Unlike series wiring, these wirings aren’t dependent on each other.
2x12v panel wired in series, the voltage up to 24v, while the amps stay as one panel amps parameter.