Optimal Direction For Solar Panels

Latitude x 0 9 23 5 degrees.

Optimal direction for solar panels.

Panels mounted on a standard pitch roof facing east or west will produce approximately 15 less output than panels mounted on a south facing roof of a standard pitch. What is the best direction for my solar panels. However solar panels can be orientated on any roof that faces south of either east or west. This is because the sun is always in the southern half of the sky in the northern hemisphere.

Latitude x 0 9 29 degrees. Usually this is the best direction because solar panels will receive direct light throughout the day. The traditional advice is to position solar panels to be south facing. Solar panels should face south for any home in america to obtain maximum power generation.

In the northern hemisphere the general rule for solar panel placement is solar panels should face true south and in the southern true north. For the best results solar panels should be oriented towards the south. Latitude 2 5 degrees. Therefore directions like southwest or southeast are fine.

Whatever your latitude is you can subtract 15 from it to calculate the angle for summer. Similarly you can calculate the angle for winter by adding 15. The direction solar panels should face is true south a k a. While the angle of your solar panels is important a more important factor in your energy production is going to be the direction your panels face.

Both of these angles require latitude degrees. Once you have figured this out you can use one of the formulas below to calculate the best angle for your solar panels for each season. The conventional understanding is that the ideal solar panel direction is facing south. To correct the compass reading your solar installer will calculate the magnetic declination of your site.

Pick the right location and solar panel direction. The conventional wisdom in the northern hemisphere is that the best direction to face solar panels is south since that is generally where they d receive the most sunlight. This is because for those of us living in the northern hemisphere the sun is always along the southern part of the sky as we complete our yearly orbit around it. There are two methods for calculating the tilt angle for solar panels.

Solar south or geographic south.