How Large Of A Solar Panel System Do I Need

For a 10 kw system size using low efficiency panels your system will occupy around 612 sq ft.

How large of a solar panel system do i need.

Then divide the kw output by your panel s efficiency to get the estimated number of solar panels you ll need for your system. Solar panels are sold in varying sizes but a 100 watt panel is a commonly found size particularly for rvs. Calculate the size of your solar system. For example if the amount of power needed is 5 000 watts and each shingle is rated at 50w you need 100.

A 5kw solar system may produce enough energy to power your home but you may not have enough roof space for a system of that size. To cover that energy need. However you can use the same procedure to estimate how many are needed. But if you used medium efficiency panels that number lowers to 508 sq ft.

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. And for highly efficient panels it reaches down to 448 sq ft. That panel is rated at 100 watts at peak efficiency meaning on a 78 degree cloudless day at solar noon on the equator during the equinox. Solar shingles are smaller than panels and their wattage is lower as a result.

The typical homeowner will need 28 34 solar panels to cover 100 of their energy usage dependent on location and roof size. To get these numbers we used high and low panel production ratios to calculate how many solar panels are needed on average.