Solar Roof Kwh Per Day

Because of the variables pinning down exact numbers is tough.

Solar roof kwh per day.

Or 30 kwh 5 hours of sun 6 kw of ac output needed to cover 100 of your energy usage. So if you have solar panels that each produce 1 kwh of power per day you would need a full 37 solar panels to fully power your home. On average a normal household will use around 37 kwh per day. Let s say on a good day you average 5 hours of direct sunlight.

That s about 500 550 kilowatt hours of energy per year from each panel on your roof. 4 how does that compare to your annual energy usage. Let s estimate you get about five hours per day to generate that 30 kwh you use. So the kwh divided by the hours of sun equals the kw needed.

If you have 33 panels assuming a 30 day month you will get 1 000 kwh per month. If you have four panels you will get 4 kwh per day. So how many square feet of your roof will your pv solar system cover. The us ranges from about 4 hours 6 hours of sunlight per day on average see the below map.

But at 20 watts per square foot a system rated to produce 2 kilowatts would cover roughly 150 square feet while a 3kw system would take up about 225 square feet. However keep in mind that there are many factors at play here so this is really only a rough estimate.