What is the Best Direction for Solar Panels?
Why the best direction is South, putting panels on East and West, and more.
What’s on this page?
Explore the best direction for solar panels and dispel common misconceptions.
South-facing roofs aren't the sole option; east, west, or even north-facing panels can work.
East-west solar arrays can balance energy production throughout the day.
South-facing panels are preferred due to maximum sunlight exposure in the Northern Hemisphere.
Solar panels are a popular choice for green energy. But figuring out the best direction to point them can be confusing. In this blog post, we'll break it down for you and give you some practical tips.
Do I Need a South-Facing Roof for Solar Panels?
Many people think their roof must point south for solar panels to work well. While a south-facing roof is great, it's not the only option. You can install solar panels on roofs facing east, west, or even north. They'll still work, but with varying efficiency.
To make the most of non-south-facing roofs, think about when they get sunlight. East-facing panels get more morning sun, west-facing panels catch the afternoon sun, and north-facing panels, although less efficient, can still generate power when angled correctly.
Can I Put My Solar Panels Between the East and West?
Absolutely! If your roof allows it, putting solar panels between east and west can be a smart choice. This setup, known as an east-west solar array, helps capture sunlight throughout the day and evens out energy production. It's a good solution if you can't go entirely south-facing.
Why Do Solar Panels Face South?
Solar panels usually face south because it's where they get the most sunlight in the Northern Hemisphere. South-facing panels receive direct sunlight for the longest time, leading to the best energy production. This also reduces shading and complex adjustments.
Can You Install Solar Panels on Both Sides of a Roof?
Yes, you can put solar panels on both sides of a roof. This increases your panel capacity and energy generation. Just keep an eye on shade from nearby structures or trees, and remember that it may cost more.
Should We Install West-Facing Solar Panels?
West-facing solar panels can be useful. They capture sunlight in the afternoon when electricity demand is higher, which can cut your grid electricity use. If you can, mix south-facing and west-facing panels for balanced energy production.
Conclusion
Choosing the right direction for your solar panels depends on your location, roof, and energy needs. While south is best for maximum energy, east, west, and even north can still work. Consult with a solar pro to find the best setup for you. No matter which way they face, solar panels are a smart investment for a greener future and lower energy bills.
Now that we've covered the basics, here's some extra information to help you make the best decision for your solar panel setup:
Solar Panel Angle: The angle at which your solar panels are tilted also plays a role. It's typically recommended to tilt them at an angle equal to your latitude. However, fixed panels that are parallel to the roof can work well too, especially if you're in a region with consistent sunlight year-round.
Tracking Systems: For those who want to maximize energy production, solar panel tracking systems are an option. These systems follow the sun's path throughout the day, ensuring that panels are always facing the sun. While they can significantly boost efficiency, they also come with higher costs and maintenance requirements.
Local Climate: Consider your local climate and weather patterns. If you live in an area with frequent cloud cover or a lot of rainy days, you might prioritize maximizing exposure to the limited sunlight you receive.
Energy Storage: If you plan to install a solar battery to store excess energy, your solar panel orientation becomes less critical. You can store energy when the sun is shining and use it when needed, regardless of panel orientation.
Solar Panel Efficiency: Keep in mind that solar panel technology is continually advancing. Newer, more efficient panels can generate more power from less space, making it easier to find the best orientation for your specific situation.
Government Incentives: Check with your local government for any incentives or rebates for solar installations like the ECO4 grant. Some regions offer financial incentives that can offset the cost of installation, making solar panels an even more attractive investment.
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