The amount of energy your home uses over a certain timeframe say a month is measured in kilowatt hours kwh.
Number of solar panels to power 4000 home.
We then took 11 000 kwh and divided it by the respective ratios and then divided that number by 250 the typical panel wattage.
How many watts can your solar panels produce.
Take the number of watts you need divided by 345 to see the number of panels you need.
Assuming you are going to choose standard efficiency solar panels here are the most common sizes for residential solar systems and their kwh production potential to give you an idea.
Picking from the section on how many sunlight hours you get from your home you can now estimate the number of panels you require.
For example if you need 4 000w hour as tabulated in the example above and have 250w solar panels.
A home that consumes 1 000 kwh per month will normally need between 20 and 30 solar panels.
The exact number changes depending on the specifications of the chosen panel model as well as the sunshine available at the project site.
In this case 4 000 watts.
The amount of power kwh your solar energy system can produce depends on the number of solar panels that can absorb solar energy and convert it into electricity.
A typical american home will need 14 36 solar panels to cover their power bill and at least 227 square feet of rooftop space to accommodate the solar panels.
You need at least 4 000 250 16 solar panels.
Multiply this number by 1 000 to get the number of watts you need your solar panels to produce.
In order to find a range for number of solar panels we compared arizona and maine s solar panel production ratios 1 31 and 1 61 the highest and lowest in the u s.