If you are considering installing a solar panel in your home, there are some things you should study and review before making up your mind. It becomes difficult to choose between the many options available in the market today.

Difference between 12v and 24v solar panels

You must first decide among the hundreds of brands available on the market. Next, you need to decide on the characteristics of your panel. A solar panel is available in a wide range of voltage and wattage.

Today we are going to see the differences between a 12V solar panel and a 24V solar panel, and how to choose between the two. A 12V solar panel is generally suitable for small homes or small projects compared to 24V panels. In addition to this rule of thumb, there are various technical aspects to consider when choosing between the two. We tried to differentiate them on the basis of five points:

  • Battery compatibility.
  • Inverter compatibility.
  • Support charge controller.
  • Real use case (Applications).
  • Ranges.
  1. Battery compatibility.

Usually a 12V solar panel should work with a 12V battery and a 24V solar panel should work with a 24V battery. An important point is that there are no 24V batteries available in the market, so two 12V batteries must be joined in a series connection.

  • 24V panel – 24V (2 * 12V batteries in series). We can also use MPPT charge controller connected to 12V battery.
  • 12V panel – 12V battery
  • 6V panel – 2 / 6V battery
  1. Inverter compatibility.

Just like the battery, the solar panel must also be compatible with the power of the inverter. For example, a 12 V solar panel should be paired with a 12 V inverter and a 24 V solar panel should be used with a 24 V inverter. Inverters are available in different ranges, 12V, 24V, 48V, etc.

  • 12V battery – 12V inverter. 12V solar panel.
  • 24V battery (connected in series) – 24V inverter – 24V solar panel.
  1. Support for charge controller.

The capacity of a charge controller should match the capacity of the inverter and battery. If we have 12V battery and 12V inverter, 12V charge controller should be used. Likewise, for 24V.

It is important to note here that the rating of the solar panel should not be higher than that of the charge controllers. For example, a 9A solar panel cannot be paired with a 6A charge controller.

Charge controllers are available in a wide range from 6 amps to 53 amps. Solar panels are also available in different ranges, for example:

  • Panel 10W – 1 A
  • 20W panel – 2.5 A
  • 180W – 9 A panel
  • 350W panel – 8-9 A
  1. App.

12V solar panel can be used for different applications such as street lights, tourist vans, shops, small houses, home lighting, mobile charging, solar bag, science project, solar water pump, office, boats, fishing, etc.

Image: Phuketian.S – Shutterstock.

A 24V solar panel can be used in large homes, hospitals, banks, offices, in network applications such as factories, apartments, parking lots, parks, government buildings, solar parks, etc.

  1. Ranges

The 12V solar panel is available in 10W, 20W, 40W, 50W, 125W, 160W and 180W, while the 24V is available in 330W and 350W.