Wiring 2 Solar Panels Together

Wiring solar panels in series.

Wiring 2 solar panels together.

Wiring solar panels in a parallel circuit. The following wiring diagram shows that the two 12v 10a 120w solar panels connected in parallel will charge the two 12v 100ah parallel connected batteries as well as power up the ac load through batteries and inverter during the day in normal sunshine. Solar panel wiring aka stringing and how to string solar panels together is a fundamental topic for any solar installer. During shading night when there is no generating power from solar panels the battery stored energy will be used as a backup power and it.

You need to understand how different stringing configurations impact the voltage current and power of a solar array. When you wire in series there is just a single wire leading from the roof for each string. 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. Solar panels are usually connected in series to obtain higher output voltage.

You have two different higher voltage solar panels i e one 100w 24v and one 200w 24v that you want to connect to the already working 12 v solar power system comprising the two 12v 50 w solar panels connected in parallel from the previous scenario see the picture above. 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 at 20 amps. Both have their own purpose and applications and both have different outcomes when hooking up solar panels of different wattage together. Firstly lets take a look at connecting 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 total voltage of each solar panel is summed together but the amps of electrical current stay the same. There are two ways to wire up solar panels. The connection of multiple solar panels in parallel arises from the need to reach certain current values at the output without changing the voltage.