How Much Energy Does A Solar Panel Produce In A Year

All solar panels are rated by the amount of dc direct current power they produce under standard test conditions.

How much energy does a solar panel produce in a year.

On average a normal household will use around 37 kwh per day. Smart design decisions can also improve the productivity of a solar power system. A 2kw or 3kw array on the other hand will be able to supply enough energy to power a smaller home. 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.

To put that into perspective a typical household uses about 897 kwh per month. Don t wait the earlier you get into the statewide smart program the more money you ll save and don t forget you ll get the full 30 federal tax credit before it. 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. If you take 1 5kwh as the average then you will require at least 47 panels.

December produces only 122 kwh which is just 17 as much as july. 25 000 kwh 365 1 5kwh per day 47 panels. The exact electricity production depends on the panel specifications and the amount of sunshine received. Generally speaking a 3kw or 4kw solar panel array will be able to produce enough energy to power a home containing a family of four or five people.

A common size solar panel array is usually around 5kw and takes up around 400 square feet of space. As you can see the summer is when my system generates the most electricity with an average total generation of 717 kilowatt hours in the month of july. Each solar panel can be expected to produce between 400 and 600 kilowatt hours per year. A 4kw system will on average generate around 3 400kwh of electricity per year.

You can use the table of solar power production per kw for each state above to do the same math for your state. With the free electricity you ll generate with your solar pv system you ll enjoy significantly lower energy bills and protection from rising energy costs all year long. March is a lot better at 430 kwh but still only 60 of july s average. For example the standard panels produce an average of 1 1 5 kwh per day.

Therefore it is very possible to generate enough energy to cover 100 of your needs. The calculations would be like this. 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.

An array of this size can produce an average of 350 850 kwh of ac energy per month.