Hooking Solar Panels In Parallel

The next basic type of connecting solar panels is in parallel.

Hooking solar panels in parallel.

So if you wired the same panels from before in parallel the voltage of the system would remain at 40 volts but the amperage would increase to 10 amps. 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. While hooking up diverse solar modules it s not the different power specifications that might be crucial rather it s basically the current for series connection and voltage for parallel connection that might cause the draw down of the efficiency of the system. The amps of electrical current for each solar panel are summed together but the system voltage stays the same.

For solar panels connected in parallel total power is calculated as follows. Total connected power 140w 150w 150w 150w 590w unlike solar panels connected in series the different wattage parameters do not effect the overall outcome of the array. To wire two or more solar panels and batteries in parallel simply connect the positive terminal of solar panel or battery to the positive terminal of solar panel or battery and vise versa respectively as shown in the fig below. Off grid systems have a bit more flexibility and solar owners will sometimes connect their panels in parallel to meet their battery needs 12 volt solar system to charge a 12 volt battery for example.

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. Connecting your panels in parallel will increase the amps and keep the voltage the same. Connecting solar panels in parallel is just the opposite of series connection and is used to increase the total output current of the array and hence the total output power while keeping the same voltage. The connection of multiple solar panels in parallel arises from the need to reach certain current values at the output without changing the voltage.

Wiring your solar panels in parallel results in more wires running from your solar panel system. Wiring solar panels in parallel causes the amperage to increase but the voltage remains the same. Series circuits have only one path for current to travel along. When an installer wires your solar panels in parallel each panel s wires are connected to a centralized wire leading from the roof.