Number Of Solar Panels Needed For A House

A 10kw solar system which consists of 40 panels can produce an average of 14 000 kwh per year.

Number of solar panels needed for a house.

Before purchasing a solar energy system for your home an important step is finding out how many solar panels you need. How many solar panels do i need. While many factors are involved in determining how many solar panels are needed to power your home there is a basic formula. Gregg garrison general manager of northeast solar in hatfield ma gave some guidelines for the average homeowner regarding the number of panels to power both electrical and hot water requirements.

Compare solar quotes on the energysage marketplace customized to your property and energy needs. An average homeowner needs 28 to 34 solar panels to fully offset their electricity bill with solar. Updated june 25 2020. Keep in mind that the amount of power your solar system can produce depends on how much sunlight your roof receives and your location.

In the example dividing 3 940 w by a panel s 200 w rating calculates 20 panels needed to sustain your entire house. The exact number changes depending on the specifications of the chosen panel model as well as the sunshine available at the project site. You will need a roof space of about 680 sq ft for a 10kw system. The number of panels you need for your house depends on factors like location and panel performance.

Dividing your hourly requirement by the solar panels wattage calculates the total number of panels you need.