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.
Solar panel kwh output.
Based on the table we know that a 300 watt solar panel produces 36 5 kwh electricity per month.
The higher the wattage of a solar panel the more electricity it can produce under the same conditions.
How many solar panels do you need to produce 1 000 kwh per month.
I won t be investing until the price is 50 or more on a 6kw system that produces only 750 kw.
So if you have a 7 5 kw dc system working an average of 5 hours per day 365 days a year it ll result in 10 950 kwh in a year.
Considering 6 peak sun hours per day and 300 watt panels you need 16 to produce 700 kwh each month.
On average a domestic solar panel has a power output of around 265 watts although it can range anywhere from as little as 225 watts to more than 350 watts.
This will maximize the watts installed per square foot compensating the area limitation.
Thus the output for each solar panel in your array would produce around 500 550 kwh of energy per year.
A solar panel s output is expressed in watts.
For solar to be affordable and useful we need lower prices with higher solar kw produced in a 24 period vs 750 kw for 15k.
I can use 750 kw in 10 days or less.
If you have limited roof space the best recommendation is installing the most efficient solar panelsavailable.
My calculation tells me my return on investment would be about 17 years.
However keep in mind that there are many factors at play here so this is really only a rough estimate.
On average a normal household will use around 37 kwh per day.
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.