You need at least 4 000 250 16 solar panels.
Number of solar panels to power 4000 home.
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.
The amount of energy your home uses over a certain timeframe say a month is measured in kilowatt hours kwh.
The sunpower x series panels are 345 watts each.
Picking from the section on how many sunlight hours you get from your home you can now estimate the number of panels you require.
The exact number changes depending on the specifications of the chosen panel model as well as the sunshine available at the project site.
Multiply this number by 1 000 to get the number of watts you need your solar panels to produce.
For example if you need 4 000w hour as tabulated in the example above and have 250w solar panels.
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.
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 home that consumes 1 000 kwh per month will normally need between 20 and 30 solar panels.
The amount of energy that solar panels can absorb and then produce is measured in kilowatts kw.
Take the number of watts you need divided by 345 to see the number of panels you need.
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.
We then took 11 000 kwh and divided it by the respective ratios and then divided that number by 250 the typical panel wattage.