Solar Roof Kwh Per Day

However keep in mind that there are many factors at play here so this is really only a rough estimate.

Solar roof kwh per day.

If you have four panels you will get 4 kwh per day. 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. That s about 500 550 kilowatt hours of energy per year from each panel on your roof.

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. Let s say on a good day you average 5 hours of direct sunlight. Or 30 kwh 5 hours of sun 6 kw of ac output needed to cover 100 of your energy usage. So how many square feet of your roof will your pv solar system cover.

If you have one 250 watt panel receiving four hours of sun then you will get 1 000 watts or one kwh per day from that panel. Multiply 5 hours of sunlight x 290 watts from a solar panel 1 450 watts or roughly 1 5 kilowatt hours per day. The us ranges from about 4 hours 6 hours of sunlight per day on average see the below map. Let s estimate you get about five hours per day to generate that 30 kwh you use.

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.