A solar energy system that could produce 2000 kWh per month would consist of 27 to 66 standard residential solar panels. The amount of solar energy, or the number of solar panels you need, will depend mainly on your location. The following two practical examples show the difference in the number of solar panels needed for a home using 1000 kWh per month in San Francisco, California and Glasgow, United Kingdom. Homes in very hot or very cold locations will likely consume more electricity, especially if they use reversible air conditioning units.
The U.S. average is about 30 kWh per day, but usage by state can vary greatly. On average, how many kilowatt-hours (kWh) do you consume per month? (See your electricity bill) Based on the results of the solar panel calculator above, you can multiply the recommended wattage by 65 or 75 cents (or more) to get an approximate cost for all of your solar panels. The physical size of your solar panels will also influence the determination of the overall number you need.
If you have limited ceiling space, you may need high-efficiency panels or panels with a higher power output to be able to install fewer panels while meeting your energy needs. When calculating how many solar panels your home might need, it's important to consider the size of your home. Since you now know how much 1 kW of solar energy will produce in your area, you can determine the size of the solar system you need to meet your electricity needs. That's why it's important to have a professional solar consultant evaluate your home to make sure it's optimized for solar efficiency.
Or, if you plan to move to a new, larger home and want to install solar panels on it, that larger home will likely require more energy use. Next, take the size of the system in watts and divide it by the wattage of the solar panels you want to install. Factors such as tree cover and the direction in which the roof faces determine how much sun can reach solar panels throughout the day. This is your 8-step process for determining how many solar panels you'll need to produce the energy you want.
Solar panels can reduce your carbon footprint and potentially decrease grid dependency and monthly electricity bill. Calculate the power of your panel, which is the amount of electricity your panel produces under ideal conditions. However, if you want to put pen to paper and calculate the calculations yourself, follow these four simple steps to find out how many solar panels you need. Community solar programs are a common way for many homeowners, businesses, and renters to use solar energy without installing anything on their roof.