How Many Solar Panels Needed For Average House

Average monthly power consumption of your house.

How many solar panels needed for average house.

But do you consider your home average. You will need a roof space of about 194 sq ft for a 3kw system. The number of panels you need for your house depends on factors like location and panel performance. To calculate the number of solar panels needed to power your house you need to know following two things.

How many solar panels does my house need. The average american home needs 14 36 solar panels to power their home if you live in a sunnier state less solar panels are needed to generate the electricity your home needs more efficient solar panels means less solar panels are needed high efficiency panels are necessary when installing solar panels on a small roof. In the united states the average home consumes about 10 400 kilowatt hours khw of electricity each year. Assuming a given solar panel produces 250 watts of power you d need 28 to 34 of them to meet your annual electricity requirements.

Assuming a homeowner used the national average of 911 kwh per month they would need about 24 solar panels to supply their house with electricity. If you multiply that by 30 you get 38 4 kwh per month and that s just one solar panel. A 3kw solar system which consists of 12 panels can produce an average of 4 200 kwh per year. A 5kw solar system which consists of 20 panels can produce an average of 7 000 kwh per year.

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 of how many panels you would need to run a house. That means a single solar panel could collect about 1280 watts or 1 28 kwh per day. An average homeowner needs 28 to 34 solar panels to fully offset their electricity bill with solar.