What size Solar System do I Need?

The size of the solar system you need will be determined by the following factors: Your current and future energy needs. You must consider future purchases or changes that may impact your usage, ie. purchasing an electric vehicle. The space available on your roof.

How big should a solar panel be?

When discussing solar panel size, it's essential to consider both the physical solar panel size dimensions and the energy output. Most residential solar panels are approximately 65 inches by 39 inches in size. However, the wattage, or energy output, can vary significantly, typically ranging between 250 to 400 watts for residential panels.

How many solar panels do I Need?

However, panel sizes can differ based on the manufacturer, wattage, and technology used. Higher-wattage panels are generally larger and more efficient in capturing solar energy. To calculate the number of panels you need, divide your home’s average daily energy consumption (in kilowatt-hours) by the solar panel’s wattage.

Are larger solar panels a good choice?

While larger panels might seem like an attractive option due to their higher output, they may not always be the best choice for every home. Factors such as roof size, panel efficiency, and your home's energy needs will help determine the right balance between solar panel size dimensions and energy efficiency.

How do I determine the right size of a solar system?

Learn how to determine the right size of a solar system for your home by considering factors like energy consumption, location, and roof orientation. Use our simple calculator to estimate your solar panel needs.

How many kilowatt-hours a month do solar panels use?

Most homes use around 877 kilowatt-hours (kWh) per month. For a home with high energy usage, you may need either larger or more panels to meet your power needs. When considering how to size a solar system for my house, both the number of panels and their wattage are key factors to keep in mind.