Number Of Solar Panels Needed For A House

Updated june 25 2020.

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. The number of panels you need for your house depends on factors like location and panel performance. 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. An average homeowner needs 28 to 34 solar panels to fully offset their electricity bill with solar.

Follow along to calculate the amount of solar panels your specific home will need. A home that consumes 1 000 kwh per month will normally need between 20 and 30 solar panels. How many solar panels do i need. You will need a roof space of about 680 sq ft for a 10kw system.

In the example dividing 3 940 w by a panel s 200 w rating calculates 20 panels needed to sustain your entire house. Dividing your hourly requirement by the solar panels wattage calculates the total number of panels you need. A 10kw solar system which consists of 40 panels can produce an average of 14 000 kwh per year. The exact number changes depending on the specifications of the chosen panel model as well as the sunshine available at the project site.

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.