To calculate the number of solar panels needed for an average house, you will need the following data:
- Energy consumption: You must know your household’s average daily energy consumption in kilowatt-hours (kWh). This information can be found on your utility bill.
- Average daily sunshine: You will need to know your area’s average daily sunshine hours. This information can be obtained from your local weather station or online resource.
- Solar panel efficiency: You will need to know the efficiency of the solar panels you plan to use, measured in watts per square meter.
- Roof area: You must know the total square footage of your roof area used for solar panel installation.
- Energy production: You will need to know the energy production of each solar panel, measured in watts.
Using this information, you can calculate the number of solar panels needed by dividing your daily energy consumption by the average daily sunshine hours, then by the panel efficiency and the energy production of each panel. The final number will estimate the number of solar panels needed to generate enough energy to meet your household’s consumption.
It is important to note that there are online tools and calculators available that can help you estimate the number of solar panels needed for your home, using the above-mentioned data.