How To Determine How Many Solar Panels I Need

You probably consume more electricity during certain months of the year.

How to determine how many solar panels i need. The tool works by taking your average monthly energy usage in kilowatt hours kwh. How do i calculate how many solar panels i need. The solar system size your home needs will depend on your electricity consumption and the climate of your region. Your electric bill should have your usage.

Calculators that use kilowatt hours are more accurate because they consider your exact energy needs. Calculate your average electricity use per day in watts using your electric bill for december. Factor in your. To do this use an online solar.

Other factors can determine solar panel effectiveness such as roof direction shade or the climate where you live. So to install a 6 kw solar array which will produce 1000 kwh per month in 5 5 hours of direct sunlight will require me to buy twenty 300 watt solar panels. 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. 6000 divided by 200 equals 30 panels.

Find out the average hours of sunlight per day in your area. If you don t want to buy 300 watt panels then recalculate using 250 watts or 200 watts. An average homeowner needs 28 to 34 solar panels to fully offset their electricity bill with solar. Calculate solar panel costs for your home.

17 42 panels to generate 11 000 kwh year. Determine your average monthly electricity usage. Calculate your daily kwh usage. Refer to your.

Our solar calculator can estimate the number of panels needed for your home. Use a low wattage 150w and high wattage 370w example to establish a range ex. Estimate the amount of sunlight your solar panels will receive. That s the easy answer for the average american house.

You can find out how many solar panels your home needs by using our solar calculator. To make that much energy the home would need twenty one 320 watt solar panels for a total installation size of 6 72 kilowatts. 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.