A single 350W solar panel is rated to produce 350 watts of power, but the actual power output you see from your panels depends on many factors, including, the solar panel efficiency, the temperature, shading, and the tilt of your panels.

The number of solar panels you will install depends on the amount of electricity you want to generate and the space available for solar panels.

It is not possible for just one solar panel to run all your appliances at once, if that is the case you need to figure this out by performing a simple calculation.

#### Step1: Find the total amount of watts needed.

This is simple, all electronic devices have a power label that will show how many watts they consume, read those labels in all the devices and add that number to find a total of watts needed.

#### Step 2: Consider the power loss

We wrote about the power loss due to inverters and wires, you need to take into account this when estimating the number of panels, in my experience the power loss will be around 10% for small projects and 20% for bigger projects.

Since this is a small project just divide the number you got in step 1 by 0.9.

#### Step 3: Find the exact number of panels you need

In step 2 you were able to find the correct power you need after taking into account the power loss, now you need to divide that number by the power produced by the solar panel and round it to the nearest whole number.

For example, if in step 2 you got 3000 watts if you divide by 350 watts as per step 3, the answer is 8.57  but you can not have 8.57 solar panels, this means you will need 9 solar panels for your project.

### Are 350-watt solar panels right for your solar installation?

350W solar panels are near the average wattage of panels used for solar installations and will make sense for many property owners.