When solar panels require clear and unobstructed exposure to sunlight to generate the most power, explore the best angle for solar panels. COVID-19 may gain ground, but that hasn’t stopped people from installing more solar panels. They recognize the benefits of clean energy, such as solar power, in the United States.
Looking to get the most exposure possible for your solar panels? Learn about the best angle for solar panels with our guide.
While the upfront installation costs can be high, renewable energy puts little strain on your wallet compared to other types of power. If you plan to take advantage of solar panel tax credits, you may wonder, “What’s the best angle for solar panels?”. Don’t worry. We’ve got all the info you need to keep reading.
Consider Your Geographical Location:
The best angle and orientation of solar panels depend on their geographical location. Whether you are in the Northern Hemisphere, Southern, or Middle Hemisphere, where to put solar panels is something we need to consider, so it is significant to pay attention to more details here. It needs direct sunlight, and so must be in a location with plenty of it and low shadows.
Northern Hemisphere:
In the northern hemisphere, panels should be at an angle equal to the latitude of the installation site. The roof solar panels should face south with a tilt or angle of approximately 15 to 45 degrees to maximize sunlight during the year. This allows the panels to capture the most amount of energy from sunlight year-round.
Southern Hemisphere:
In the Southern hemisphere, the panels should face at an angle equal to the negative of the latitude. Solar panels’ direction, or azimuth, also changes with location. Generally, in the Northern hemisphere, the best direction is facing the south, while in the Southern hemisphere, it is facing the north.
Middle Hemisphere:
Solar panels in the middle hemisphere enjoy the most direct radiation, making them more efficient. The best angle for solar panels in the middle hemisphere is tilted at an angle equal to the latitude angle of the location. This will allow the panel to be perpendicular to the sun’s rays during the day and capture the most amount of sunlight.
Season of the Year:
The season of the year is an important factor when determining the best angle for the solar panel. Based on your location’s climate and season, to further maximize efficiency, you should adjust the solar panel. Panels should be able to adjust throughout the year to support good levels of solar input.
Summer:
For summer months in most parts of the United States, the best angle for solar panels is tilted to the south to collect the direct rays of the sun. This angle should be between 30° and 50° and should be set to face the same direction daily, as there is more direct exposure.
Angles that are less than 30° may be seen as more of an obstacle and cause the sun to reflect off of it as opposed to exposing it to the direct rays of the sun. Additionally, North facing panels may not get enough sun exposure during summer. Usually, periodic adjustment is not necessary. However, if you decide to adjust it through the summer, then use the sun’s shadow projected on the solar array at noon to determine the ideal solar panel angle for exposure.
Winter:
In winter, the best angle for solar panels is dependent on latitude and other factors. Generally, in northern latitudes, the best winter angle is between 25 and 35 degrees from horizontal. This ensures that the panel can capture as much of the lower angle winter sunlight, as well as support a steeper angle, which prevents snow accumulation on the panel.
In southern latitudes, winter solar panel orientation should be at a steeper tilt, up to 40 to 50 degrees. This allows the panel to capture the high-angle winter sunlight while also benefitting from the less severe weather conditions.
Autumn:
In autumn, when the sun is lower in the sky, the optimal angle remains unchanged, as the angle is fixed to optimize production throughout the year. That’s why it’s important to install solar panels at this fixed angle for them to be effective.
Additionally, in autumn, the leaves tend to crowd out sunlight, so the solar panel tilt angle helps to prevent those effects from impacting the panels. Solar panels can capture and use the sun’s energy in autumn with the proper tilt.
Spring:
During the spring season, the days become longer as we approach summer. This greater amount of daylight exposure allows solar panels, which capture and convert the energy from the sun’s rays, to harness more energy for your home.
Additionally, the sun moves in an arc or path across the sky in most parts of the world. So, the best angle for solar panels is 30 degrees from the horizontal. A PV system faced in this direction will capture the most amount of sunlight throughout the day, making spring the best time to make necessary adjustments for improved solar performance.
Roof Orientation:
The best angle for solar panels falls between 30 and 45 degrees for roofs with a pitch pointing north. If the roof faces east or west, the best angle falls between 30 and 60 degrees. Vertical solar panels can be of use when the roof is close to the ground.
South-facing roofs have an ideal angle close to the roof’s slope. These factors will impact the amount of energy produced, making it essential that solar panels are at the right angle.
Shades and Other Obstructions:
It’s necessary to keep in mind that shade and obstructions can affect the efficiency of the solar panel. Large trees, buildings, and other tall structures that cast shade on the solar panel can reduce the amount of sunlight. Make sure to survey the surrounding environment and position the panels in a way that minimizes any obstructions that may reduce their effectiveness.
Know the Best Angle for Solar Panels Today:
The best angle for solar panels depends on several factors. This includes your geographical location, the season of the year, roof orientation, shade, and other obstructions. For optimal performance, it’s best to consult an experienced solar installer. Consider doing this today and start saving money on your electricity bills! Did this post help you decide which is the best angle for your solar panels? For more tips and guides, be sure to continue reading this blog site.
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