How To Figure How Many Solar Panels You Need

For simplicity let s assume you have a 100 watt device that you want to power with free solar energy for 10 hours each night.

How to figure how many solar panels you need.

In the example above you would need 24 solar panels to account for 80 of your average consumption 29 6 kwh daily usage divided by 1 24 kwh per panel. How do i calculate how many solar panels i need. That would be enough to produce just over 9 000 kwh in the first year with the solar panels under warranty for at least 25 years. If you use 250w panels you need 27 of them.

17 42 panels to generate 11 000 kwh year. Determine how many solar panels you ll need one solar panel produces about 1 24 kwh per day. Calculate how much energy is needed. 100 watts x 10 hours 1 000 watt hours.

However you can use the same procedure to estimate how many are needed. Find out the average hours of sunlight per day in your area. Your electric bill should have your usage. To make that much energy the home would need twenty one 320 watt solar panels for a total installation size of 6 72 kilowatts.

Task 2 think about how your future energy needs will change in 10 20 years. You can calculate how many solar panels you need by multiplying your household s hourly energy requirement by the peak sunlight hours for your area and dividing that by a panel s wattage. To figure out what size solar panel batteries charge controller and inverter you need follow the simple steps below. To do this use an online solar.

Set a solar power production goal. Use a low wattage 150w and high wattage 370w example to establish a range ex. Task 1 go look at your bills summer and winter and see how much you ve been paying. Calculate your average electricity use per day in watts using your electric bill for december.

That s the easy answer for the average american house.