How Much Solar Panels To Power A House

The amount of energy your home uses.

How much solar panels to power a house.

The numbers sometimes may fluctuate depending on the number of sunlight hours less or more energy consumption in some months and insulations. To really understand how many solar panels your solar energy system needs you need to determine. The number of panels needed depends on your location and roof size. The average single solar panel will provide about 250 watts hour during peak sun exposure or about 0 25kwh hour.

Look at monthly kwh used on your electric bill the direction of your roof. You will need a roof space of about 680 sq ft for a 10kw system. A 10kw solar system which consists of 40 panels can produce an average of 14 000 kwh per year. Now that you know how much electricity you need each day it s fairly straightforward to find out how many solar panels you re likely to need.

For comparison the fridge mentioned above would require about 0 26kwh per hour. So 40 solar panels will be required to 100 percent power their house. The average family uses 11 000 kwh per year and needs 26 to 33 solar panels to power the whole house. 11 000 divided by 275 watt solar panel 40.

To get these numbers we used high and low panel production ratios to calculate how many solar panels are needed on average. One solar thermal panel generates enough energy to power a hot water heater for a family of four.