The white line is the negative connection all 3 panel negative wires are just simply tied together and to the wire that runs back to the negative connection on the charge controller.
Connecting multiple solar panels to a charge controller.
If both panels are rated at the same maximum voltage then you ll get maximum output.
Then they are connected to the charge controller or to the inverter of the solar system.
Maximum rated current 5 8a.
The red line is the positive connection to the panels.
In fact by wiring several solar panels in series we increase the voltage keeping the same current while wiring them in parallel we increase the current keeping the same voltage.
You can think of a charge controller in the same way that you would think of a hard drive on a computer.
Connecting solar panels in parallel wiring solar panels in parallel implies connecting positive terminals of each panel together and wiring the negative terminals of each panel together as well.
For example our 115w sunpower solar blanket has the following ratings.
Large off grid solar and battery backup pv systems often require greater charging than a single controller can provide.
To meet high power charging requirements several solar controllers can be connected in parallel to a battery bank with each controller connected to its own separate pv subarray.
You will see a symbol that looks like a triangle pointing down at a horizontal line.
Maximum rated voltage 19 8v.
The combined power of the two panels would exceed the current handling capability.
The connection of multiple solar panels in parallel arises from the need to reach certain current values at the output without changing the voltage.
Here s something you can do.
There is only a certain amount of data that a hard drive can store so you typically purchase a hard drive that is big enough for your needs.
Connect two large solar panels to one battery.
Connect the negatives to the negatives and positives to the positives.