You’ve probably heard that solar power is clean and green, but can it be installed on your house? In the infographic below we summarized what you need to understand before installing a photovoltaic system on your house.
Is your home suitable for solar RENVU? The main things that an expert will check when determining whether your home is suitable for solar are:
- Is your roof shaded?
- What is the direction of your roof?
- What is your available roof area?
- How is the weather?
Is your roof shaded? Sunlight has to directly hit the solar panels for the photovoltaic cells to generate electricity. The solar system’s performance is reduced if the panels are shaded in any way because the solar panel is not receiving direct sunlight to generate electricity. Large trees and chimneys can cause shading on the roof as the sun changes position in the sky and may limit the area in which solar panels can be installed.
What is the direction of your roof? The angle and direction of the solar panels will determine their performance. Solar Panel’s Favorite Direction: Northern Hemisphere (USA) - optimal performance when facing south Southern Hemisphere (Australia) - optimal performance when facing north Metal racking is installed under the panels so that the panels can be positioned at an angle to collect more sunlight throughout the day. Panels mounted on flat roofs or ground mounts need to be mounted on racking that will tilt the panels towards the sun, while panels put on a tilted roof will be installed parallel to the roof. West and East facing panels can still work in most places, but they are not ideal. You can learn how your solar system will perform in any direction using solmetric.com/cgi/insolation_lookup/go.cgi A subtle point: The ideal direction for solar panels to point is called “True South”, but the compass points to a slightly different direction called “Magnetic South”. As you can see here, True South is 25 degrees to the left of the Magnetic South. The exact direction from your location varies, but you can identify the direction of True South by searching “magnetic declination” or using magnetic-declination.com.
What is your available roof area? General Rule of Thumb: Every 1kW of solar requires 100 square feet of available roof area. Tilted roofs provide the best use of available roof space because panels can be placed next to each other with minimal spacing in between. Panels mounted on flat roofs need larger spacing between the panels in order to prevent one panel from being shaded by the one in front of it. The exact distance between each panel will depend on your location, the tilt angle of the panels, and the angle of the sun. If you need any help, you can contact a professional installer or we would be happy to help! chat with us at www.renvu.com, email us firstname.lastname@example.org, or call us: 855-755-5855
How is the weather? Ideal weather for photovoltaic panels: cold weather with lots of sun! The amount of electricity that your solar system will generate depends both on the amount of sun it will receive and on its temperature. Panels operate at their peak efficiency in cold and sunny weather.