3 Pointers to Know the Ideal Size of Your Solar Panel System

Technician fixing solar panels on the roof

There are various reasons you may want to install solar panels in your home. Perhaps you want to finally get off the grid and minimize your utility bills, or you want to reduce your impact on the environment by going green. Maybe you want to boost your home’s value while enjoying an uninterrupted power supply.

Whatever the reason, it’s important to know what size of solar panel system will give you the highest ROI. Here are three ways to tell.

1. Your current energy consumption

To calculate the ideal number of panels you’ll need, PowerCo Solar noted that a solar panel installation expert would first need to know how much your power bills are at the moment. By knowing the month-to-month, day-to-day and hourly consumption of your energy, they can use this data while calculating what size of solar panel system can satisfy your needs.

2. The size of your roof and shading

The total area of your roof, added to how much sunlight strikes your area, are essential in establishing the energy output expected. Usually, the size of the roof will not be a concern if your house does not have a roof that’s abnormally small. The side of the roof you’re going to install the panel must be free from shading for greater efficiency.

3. The efficiency of the panels

Solar panels, like all other equipment, vary in terms of quality and efficiency. Usually, residential panels will produce wattage between 150 and 370 watts for each panel. If you are investing in a highly efficient solar system, then you’ll generally need a smaller system compared to one that produces half the wattage.

Installing a solar system in your home is a significant move that calls for a lot of forethought. As you go about the project, it’s crucial to determine what size or number of panels you’re going to need so you neither end up with a deficit nor a surplus.