That translates to just over 15 watts per square foot.
Solar panel kwh output per square foot.
An array of this size can produce an average of 350 850 kwh of ac energy per month.
The average sized solar panel takes up an area of 17 6 square feet and produces 265 watts under direct sunlight.
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.
For instance if you have a panel that puts out 265 watts and is 65 4 by 39 inches in size the energy produced per square foot would be around 15 watts.
For the sake of example if you are getting 5 hours of direct sunlight per day in a sunny state like california you can calculate your solar panel output this way.
A common size solar panel array is usually around 5kw and takes up around 400 square feet of space.
When dividing these values you obtain 0 35 kwh per square foot assuming 0 35 kwh for a 2 000 sq.
Simply put once you know how much power each panel puts out simply divide it by the square feet of the panel.
At this point you can use the calculation procedure described in the previous section.
Each solar installer has sophisticated software that can spell out your house s exact power needs while looking at historical weather patterns roof angles and other factors to tell you how many panels you ll need and how much power your they ll be able to generate per square foot.
Sizing a solar panel system to your home s electric usage can be done by taking look at your energy bills over a year.
Therefore it is very possible to generate enough energy to cover 100 of your needs.
The 3 1 kw ac system is a 4 14 kw dc system made up of 12 345 watt panels where each panel is about 17 3 ft.
Given 1kw of panels produces 1642 kwh per year in ca and 1kw of panels takes up 68 42 square feet solar panels installed in california on average produce 23 99 kwh kilowatt hours per square foot per year.
Considering 6 peak sun hours per day and 300 watt panels you need 16 to produce 700 kwh each month.
While this does not sound like very much square feet do add up pretty quickly.
Home the estimated electricity consumption is 700 kwh.
Thus the output for each solar panel in your array would.
So 12 panels would be about 207 ft and if that 207 square feet of panels generates 6205 kwh per year then one square foot of solar panel generates about 30 kwh per year 6205 divided by 207 30.
You can use the table of solar power production per kw for each state above to do the same math for your state.
