Now let s look at.
Solar panel power output per hour.
With 4 panels you d get a kilowatt hour.
Just as in the chart above peak sun hours are.
5 hours x 290 watts an example wattage of a premium solar panel 1 450 watts hours or roughly 1 5 kilowatt hours kwh.
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.
Putting it all together.
If that panel received full sun for one hour you d get 250 watt hours of electricity.
Therefore to figure out how much power the panel produces in a day simply multiply the 250 watts by 4 hours which comes to 1000 watts per day.
If you know the average daily peak sun hours for your location you can calculate the kwh your solar panels will make on a daily monthly and yearly basis.
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.
That s approximately equal to the power of the sun at noon on a sunny day at the equator.
What is the solar panel output of different modules based on their wattage rating.
It is equivalent to 1000 watts 1 kw of continuous power production over 1 hour.
So the kwh divided by the hours of sun equals the kw needed.
Or 30 kwh 5 hours of sun 6 kw of ac output needed to cover 100 of your energy usage.
When we measure a solar panel s output over time we use the unit kilowatt hours kwh.