Calculate Solar Panel Size Your Home

Determine the number of panels you ll need.

Calculate solar panel size your home.

Calculate off grid system size. To figure out how to size your solar system take your daily kwh energy requirement and divide it by your peak sun hours to get the kw output. Choose the inverter size. Sunpower panels are 61 3 inches by 41 2 inches.

Steps to size your system for off grid. From there the calculator can work out how many solar panels you need to offset your power usage how much a solar system will cost based on prices of local solar. 3 x 1 3 3 9in this example you would need a 3 9 kw solar pv system to satisfy your home s energy needs. The number of solar panels of the size used in the calculation will theoretically meet that energy demand during a sunny day.

Our solar savings calculator provides more accurate cost and savings estimates by analyzing your current electricity bills rooftop and solar pricing in your area. Calculate the size of your solar system. Typical residential solar panel dimensions today are about 65 inches by 39 inches or 5 4 feet by 3 25 feet with some variation among manufacturers. Compare with your consumption and costs and if it s what you are looking for then divide the power capacity by the nominal stc power of the solar panels somewhere between 350 400wp for your case.

Fill out the load evaluation calculator. Describe your shade coverage. Total number of solar panels to calculate the size of your solar photovoltaic system take your daily kwh energy requirement and divide by your peak sun hours to get the kw output you need. Choose your mounting option.

The los angeles solar panel savings calculator uses our database of electric rates from local utilities to convert your monthly power bill into how much electricity your home uses. Enter your zip code. 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. Figure out the array string size.

Then divide the kw output by your panel s efficiency to get the estimated number of solar panels you ll need for your system. Our solar calculators estimate the solar cost and size of a solar project. You calculate how many solar panels you may need by dividing the maximum hourly solar energy system output by the wattage output of one single panel.