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.
How many kwh does a solar panel produce per hour.
If we take california as an example the map shows that on average 1 kw of dc peak capacity of solar panels produces 4 5 kwh per day or 1642 kwh per year.
So take 900 kwh and divide by the amount of kwh one solar panel produces over the course of a month 30kwh and you get a 30 panel installation.
According to pvwatts each of your 335 watt panasonic hit panels should average about 1 5 kwh per day across the whole year with a high average of 1 83 kwh per day in august and a low of 1 kwh per day in december.
30 panels x 250 watts per panel equals a 7 500 watt system 7 5kw.
However keep in mind that there are many factors at play here so this is really only a rough estimate.
To figure out how many kilowatt hours kwh your solar panel system puts out per year you need to multiply the size of your system in kw dc times the 8 derate factor times the number of hours of sun.
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.
Panels can produce 1500kwhr kw purchased or 1800kwhr kw purchased.