To obtain the average amount of energy used by a house in the United States, 2,000 square meters. The home would need between 16 and 21 solar panels. That's assuming the house has a good south-facing roof that gets all the sunlight every day. Unfortunately, there is no average per square foot, since the cost of a system actually depends on your daily energy consumption and the number of hours of full sun you receive per day, and whether you have other sources of electricity.
To accurately size a system that meets your needs, you need to know how much energy (kilowatt-hours, kWh) it consumes per day. If your home is connected to the electricity grid, simply check your monthly electricity bill. If not, you can fill out our load assessment form. With this information, we can design a system that fits your needs.
All figures are in monthly averages). Depending on the location, an average 2,000-square-foot home will need between 16 and 25 solar panels to meet all of its electricity demand. Solar panel technology has advanced rapidly in recent years, resulting in several consumer-friendly panels that are highly efficient. That average 2,000-square-foot home that uses 967 kWh per month would need between 21 and 33 affordable solar panels to meet all its electricity needs.
If you're not sure of the solar potential, consult the World Solar Atlas to find out how much electricity is produced in various locations. If your home consumes about 2000 kWh per month of electricity and you want to see what size of solar panel system you'll need, the easiest way to determine that is to use an online solar panel calculator. For example, if you install 300-watt solar panels in your home, take the 6.67 kW or 6670 watt solar panels and divide them by 300. If that house has a south-facing roof with no shade during the day, it would need between 14 and 22 premium solar panels to generate that amount of electricity.
The exact amount of energy your solar panels can produce depends on the amount of sunlight they receive, which in turn depends on the orientation of the panel and its location. Use a low power solar panel with 150 watts and a high power solar panel of 370 watts to establish a range. Finally, the best way to get an accurate estimate of how many solar panels your home will need is to contact a professional solar installer, who will provide you with a technical proposal that describes how many solar panels you will need and how much energy they will generate. The main reason is that the amount of electricity the solar panels will generate depends largely on the amount of sun you receive in your city.
To generate 500 kWh each month, you'll need approximately 12 solar panels, assuming each panel has 315 watts. You can run the air conditioner with solar energy, but for constant cooling, you'll need to have solar batteries installed or switch to the power grid during the night, since solar panels only provide power while receiving sunlight.
