How Many Solar Panels Does A Family Need

The number of panels you need for your house depends on factors like location and panel performance.

How many solar panels does a family need.

You will need a roof space of about 194 sq ft for a 3kw system. The average american home needs 14 36 solar panels to power their home. If you only want your solar panels to subsidise part of your home s electricity usage you can install a smaller number of solar panels. More efficient solar panels means less solar panels are needed.

In this scenario we would need 18 panels rated at 335 watts apiece to cover our energy needs. A 5kw solar system which consists of 20 panels can produce an average of 7 000 kwh per year. 5959w 335w 17 78 panels round up the final number since you can t buy partial panels. Based on the example above if this household wants solar panels to cover just 70 of their home s electricity usage they d only need 6 solar panels 11 1 35 x 0 7.

How many hours of daily sunlight does your state receive. Compare solar quotes on the energysage marketplace customized to your property and energy needs. You will need a roof space of about 340 sq ft for a 5kw system. Take your system size and divide by the panel wattage to figure out how many solar panels you need in your system.

A home that consumes 1 000 kwh per month will normally need between 20 and 30 solar panels. A 10kw solar system which consists of 40 panels can produce an average of 14 000 kwh per year.