Calculate Solar Panel Output Kwh

Solar system output calculator calculate the average daily kwh hour output in your area based on a well installed solar system in a suitable position e g no overshadowing.

Calculate solar panel output kwh. Solar power as a function of time in kwh or wh that your solar panel can produce taking into account its rated power and solar energy available at your place. 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. But every home is unique and could use more or less power than the average home. Once you know the peak sun hours estimating the number of solar panels needed for 1 000 kwh is simple.

The first step is calculating the kilowatts needed. 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. Energy information administration in 2018 the average monthly electricity consumption for a home in the united states was 914 kwh per month or about 30 5 kwh per day and 11 000 kwh per year. 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.

It allows homeowners small building owners installers and manufacturers to easily develop estimates of the performance of potential pv installations. 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. You must simply divide the average daily kwh by the peak sun hours assuming a 30 day month an electricity generation of 1 000 kwh is equivalent to 33 33 kwh per day. Then find that the los angeles area lies within the 1 900 number on the map so the calculation for a 5 kw system would be.

This solar panel output calculator helps you estimate the real daily energy a k a. 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. Simply put once you know how much power each panel puts out simply divide it by the square feet of the panel. 5 kw x 1900 kwh kw x 78 output x 25 or 1 850 per year.

Nrel s pvwatts calculator estimates the energy production and cost of energy of grid connected photovoltaic pv energy systems throughout the world. You can use the table of solar power production per kw for each state above to do the same math for your state. Thus the output for each solar panel in your array would produce around 500 550 kwh of energy per year. Or in massachusetts where electricity costs 20 kwh and a kw of solar panels makes about 1 500 kwh per year the panels save you 1 170 per year.

This calculator may come in handy when you buy solar panel s for your rv vehicle boat camper or home solar system and you want to get a real.