Calculate Your Solar Panel Needs

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.

Calculate your solar panel needs.

The first step is calculating the kilowatts needed. For now calculate 30 of your homemade solar panel s rating. The number of solar panels of the size used in the calculation will theoretically meet that energy demand during a sunny day. Once you know the peak sun hours estimating the number of solar panels needed for 1 000 kwh is simple.

If you re following along at home here s the calculation so far so you can plug your own numbers in. That gives you 6 62 kw and some change. Calculate solar panel costs for your home determine your average monthly electricity usage. Next you can estimate your average daily kwh usage by dividing your monthly usage by 30.

You must simply divide the average daily kwh by the peak sun hours assuming a 30 day month an electricity generation of 1 000 kwh is equivalent to 33 33 kwh per day. So the average american home in the average american city needs 6 62 kw of solar panels installed. You probably consume more electricity during certain months of the. Do not panic we will raise these numbers later.

This takes into consideration the cheaper glass or plexiglass used in diy panels heating of the panels and lack of expensive electronics. 12 month usage map area number 0 85 system size.