To know the maximum system voltage we usually just need to turn the panel and read the label where the value is reported.
Solar panels connected in series.
For example if you installed 5 solar panels in series with each solar panel rated at 12 volts and 5 amps you d still have 5 amps but a full 60 volts.
Whenever you connect with each other a 60w solar panel to a 100w panel in series the gross hooked up power is likely to be 160w given that the two solar panels are of identical ampere rating.
When solar panels are wired in series the voltage of the panels adds together but the amperage remains the same.
At this point any specific difference in voltages is not crucial voltages would simply add up and all you ve might need to judge is the fact that the total voltage must come within the inverter voltage limit.
Wiring solar panels in series.
By connecting multiple solar panels in series we increase the system voltage.
So if you connect two solar panels with a rated voltage of 40 volts and a rated amperage of 5 amps in series the voltage of the series would be 80 volts while the amperage would remain at 5 amps.
In a solar power system the higher the voltage and the lower the energy losses along the cables.
When you wire in series there is just a single wire leading from the roof for each string of solar panels.